/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/elevator_spec14_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 22:03:05,436 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 22:03:05,484 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 22:03:05,488 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 22:03:05,488 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 22:03:05,505 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 22:03:05,506 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 22:03:05,506 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 22:03:05,507 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 22:03:05,507 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 22:03:05,508 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 22:03:05,508 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 22:03:05,508 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 22:03:05,509 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 22:03:05,509 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 22:03:05,509 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 22:03:05,510 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 22:03:05,510 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 22:03:05,510 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 22:03:05,511 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 22:03:05,511 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 22:03:05,511 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 22:03:05,512 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 22:03:05,512 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 22:03:05,512 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 22:03:05,513 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 22:03:05,513 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 22:03:05,513 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 22:03:05,514 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 22:03:05,514 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 22:03:05,514 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 22:03:05,514 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 22:03:05,515 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 22:03:05,515 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 22:03:05,515 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 22:03:05,516 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 22:03:05,516 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 22:03:05,517 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 22:03:05,517 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 22:03:05,517 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 22:03:05,517 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 22:03:05,518 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 22:03:05,518 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 22:03:05,518 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 22:03:05,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 22:03:05,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 22:03:05,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 22:03:05,719 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 22:03:05,719 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 22:03:05,720 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product11.cil.c [2023-12-19 22:03:06,929 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 22:03:07,251 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 22:03:07,252 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product11.cil.c [2023-12-19 22:03:07,286 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ea90c68d/c986ca6ce56e4e0f88f0e3a6923d7640/FLAGac8cacca3 [2023-12-19 22:03:07,303 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ea90c68d/c986ca6ce56e4e0f88f0e3a6923d7640 [2023-12-19 22:03:07,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 22:03:07,308 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 22:03:07,311 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 22:03:07,312 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 22:03:07,316 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 22:03:07,316 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 10:03:07" (1/1) ... [2023-12-19 22:03:07,317 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22692e47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:03:07, skipping insertion in model container [2023-12-19 22:03:07,318 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 10:03:07" (1/1) ... [2023-12-19 22:03:07,390 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 22:03:07,609 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] [2023-12-19 22:03:07,905 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 22:03:07,921 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 22:03:07,928 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2023-12-19 22:03:07,930 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [86] [2023-12-19 22:03:07,930 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [186] [2023-12-19 22:03:07,930 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [195] [2023-12-19 22:03:07,930 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [315] [2023-12-19 22:03:07,930 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [355] [2023-12-19 22:03:07,931 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [705] [2023-12-19 22:03:07,931 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [1071] [2023-12-19 22:03:07,931 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1738] [2023-12-19 22:03:07,931 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3255] [2023-12-19 22:03:07,943 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] [2023-12-19 22:03:08,035 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 22:03:08,059 INFO L206 MainTranslator]: Completed translation [2023-12-19 22:03:08,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:03:08 WrapperNode [2023-12-19 22:03:08,060 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 22:03:08,061 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 22:03:08,061 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 22:03:08,061 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 22:03:08,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:03:08" (1/1) ... [2023-12-19 22:03:08,089 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:03:08" (1/1) ... [2023-12-19 22:03:08,143 INFO L138 Inliner]: procedures = 90, calls = 331, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 1060 [2023-12-19 22:03:08,143 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 22:03:08,150 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 22:03:08,150 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 22:03:08,150 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 22:03:08,158 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:03:08" (1/1) ... [2023-12-19 22:03:08,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:03:08" (1/1) ... [2023-12-19 22:03:08,167 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:03:08" (1/1) ... [2023-12-19 22:03:08,194 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]. [2023-12-19 22:03:08,195 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:03:08" (1/1) ... [2023-12-19 22:03:08,195 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:03:08" (1/1) ... [2023-12-19 22:03:08,232 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:03:08" (1/1) ... [2023-12-19 22:03:08,242 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:03:08" (1/1) ... [2023-12-19 22:03:08,263 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:03:08" (1/1) ... [2023-12-19 22:03:08,268 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:03:08" (1/1) ... [2023-12-19 22:03:08,275 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 22:03:08,288 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 22:03:08,288 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 22:03:08,289 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 22:03:08,300 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:03:08" (1/1) ... [2023-12-19 22:03:08,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 22:03:08,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:03:08,337 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) [2023-12-19 22:03:08,361 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 [2023-12-19 22:03:08,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 22:03:08,371 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-19 22:03:08,372 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-19 22:03:08,372 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-19 22:03:08,372 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-19 22:03:08,372 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-19 22:03:08,372 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-19 22:03:08,373 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-19 22:03:08,373 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-19 22:03:08,373 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-12-19 22:03:08,373 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-12-19 22:03:08,373 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-19 22:03:08,373 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-19 22:03:08,373 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-19 22:03:08,374 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-19 22:03:08,374 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-19 22:03:08,374 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-19 22:03:08,375 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-19 22:03:08,377 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-19 22:03:08,377 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-19 22:03:08,377 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-19 22:03:08,377 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-19 22:03:08,377 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-19 22:03:08,377 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-19 22:03:08,378 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-19 22:03:08,378 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-19 22:03:08,378 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-19 22:03:08,378 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-12-19 22:03:08,378 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-12-19 22:03:08,378 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-19 22:03:08,378 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-19 22:03:08,378 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-19 22:03:08,378 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-19 22:03:08,378 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-19 22:03:08,379 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-19 22:03:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-19 22:03:08,379 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-19 22:03:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 22:03:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-19 22:03:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-19 22:03:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-19 22:03:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-19 22:03:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-19 22:03:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-19 22:03:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-19 22:03:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-19 22:03:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-19 22:03:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-19 22:03:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-19 22:03:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-19 22:03:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-19 22:03:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-19 22:03:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-19 22:03:08,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-12-19 22:03:08,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-12-19 22:03:08,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-12-19 22:03:08,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-12-19 22:03:08,381 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-19 22:03:08,382 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-19 22:03:08,382 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-19 22:03:08,382 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-19 22:03:08,382 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-19 22:03:08,382 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-19 22:03:08,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 22:03:08,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 22:03:08,384 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-19 22:03:08,384 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-19 22:03:08,542 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 22:03:08,545 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 22:03:09,349 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 22:03:09,500 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 22:03:09,500 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 22:03:09,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 10:03:09 BoogieIcfgContainer [2023-12-19 22:03:09,501 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 22:03:09,502 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 22:03:09,502 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 22:03:09,507 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 22:03:09,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 10:03:07" (1/3) ... [2023-12-19 22:03:09,508 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f66e070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 10:03:09, skipping insertion in model container [2023-12-19 22:03:09,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:03:08" (2/3) ... [2023-12-19 22:03:09,508 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f66e070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 10:03:09, skipping insertion in model container [2023-12-19 22:03:09,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 10:03:09" (3/3) ... [2023-12-19 22:03:09,509 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product11.cil.c [2023-12-19 22:03:09,524 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 22:03:09,525 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 22:03:09,573 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 22:03:09,578 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;@6a6a33a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 22:03:09,578 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 22:03:09,584 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) [2023-12-19 22:03:09,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-19 22:03:09,609 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:03:09,609 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] [2023-12-19 22:03:09,610 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:03:09,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:03:09,614 INFO L85 PathProgramCache]: Analyzing trace with hash -881218989, now seen corresponding path program 1 times [2023-12-19 22:03:09,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:03:09,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700445233] [2023-12-19 22:03:09,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:03:09,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:03:09,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:10,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:03:10,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:10,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:10,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:10,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:03:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:10,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-19 22:03:10,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:10,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:10,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:10,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 22:03:10,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:10,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 22:03:10,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:10,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:10,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:10,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:10,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:03:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:10,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-19 22:03:10,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:10,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 22:03:10,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:10,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:10,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:10,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-19 22:03:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:10,387 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 22:03:10,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:03:10,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700445233] [2023-12-19 22:03:10,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700445233] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:03:10,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:03:10,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:03:10,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569890650] [2023-12-19 22:03:10,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:03:10,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:03:10,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:03:10,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:03:10,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:03:10,438 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) [2023-12-19 22:03:14,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:03:14,548 INFO L93 Difference]: Finished difference Result 1199 states and 2054 transitions. [2023-12-19 22:03:14,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 22:03:14,553 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 [2023-12-19 22:03:14,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:03:14,569 INFO L225 Difference]: With dead ends: 1199 [2023-12-19 22:03:14,570 INFO L226 Difference]: Without dead ends: 687 [2023-12-19 22:03:14,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-19 22:03:14,580 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 1303 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 2407 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1350 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 2777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 2407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-19 22:03:14,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1350 Valid, 1059 Invalid, 2777 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [370 Valid, 2407 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-19 22:03:14,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2023-12-19 22:03:14,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 505. [2023-12-19 22:03:14,732 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) [2023-12-19 22:03:14,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 846 transitions. [2023-12-19 22:03:14,739 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 846 transitions. Word has length 89 [2023-12-19 22:03:14,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:03:14,739 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 846 transitions. [2023-12-19 22:03:14,739 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) [2023-12-19 22:03:14,740 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 846 transitions. [2023-12-19 22:03:14,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-19 22:03:14,746 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:03:14,746 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] [2023-12-19 22:03:14,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 22:03:14,746 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:03:14,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:03:14,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1711188216, now seen corresponding path program 1 times [2023-12-19 22:03:14,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:03:14,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038051282] [2023-12-19 22:03:14,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:03:14,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:03:14,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:14,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:03:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:14,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:14,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:15,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 22:03:15,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:15,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 22:03:15,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:15,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:15,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:03:15,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:15,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 22:03:15,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:15,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:15,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:15,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:15,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:03:15,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:15,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:03:15,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:15,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-19 22:03:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:15,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:15,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:15,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 22:03:15,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:15,065 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 22:03:15,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:03:15,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038051282] [2023-12-19 22:03:15,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038051282] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:03:15,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:03:15,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:03:15,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523506319] [2023-12-19 22:03:15,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:03:15,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:03:15,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:03:15,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:03:15,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:03:15,068 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) [2023-12-19 22:03:18,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:03:18,630 INFO L93 Difference]: Finished difference Result 1180 states and 1988 transitions. [2023-12-19 22:03:18,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 22:03:18,631 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 [2023-12-19 22:03:18,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:03:18,636 INFO L225 Difference]: With dead ends: 1180 [2023-12-19 22:03:18,636 INFO L226 Difference]: Without dead ends: 687 [2023-12-19 22:03:18,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:03:18,640 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 1271 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 2401 mSolverCounterSat, 366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1318 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 2767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 366 IncrementalHoareTripleChecker+Valid, 2401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-19 22:03:18,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1318 Valid, 1060 Invalid, 2767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [366 Valid, 2401 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-19 22:03:18,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2023-12-19 22:03:18,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 505. [2023-12-19 22:03:18,723 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) [2023-12-19 22:03:18,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 845 transitions. [2023-12-19 22:03:18,730 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 845 transitions. Word has length 90 [2023-12-19 22:03:18,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:03:18,730 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 845 transitions. [2023-12-19 22:03:18,730 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) [2023-12-19 22:03:18,730 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 845 transitions. [2023-12-19 22:03:18,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-19 22:03:18,735 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:03:18,735 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] [2023-12-19 22:03:18,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 22:03:18,736 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:03:18,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:03:18,737 INFO L85 PathProgramCache]: Analyzing trace with hash 979281911, now seen corresponding path program 1 times [2023-12-19 22:03:18,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:03:18,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233359839] [2023-12-19 22:03:18,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:03:18,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:03:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:18,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:03:18,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:18,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:19,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 22:03:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:19,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-19 22:03:19,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:19,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:19,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:19,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 22:03:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:19,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 22:03:19,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:19,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:19,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:19,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:19,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:19,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:03:19,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:19,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 22:03:19,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:19,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 22:03:19,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:19,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:19,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:19,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 22:03:19,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:19,039 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 22:03:19,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:03:19,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233359839] [2023-12-19 22:03:19,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233359839] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:03:19,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:03:19,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:03:19,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662471389] [2023-12-19 22:03:19,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:03:19,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:03:19,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:03:19,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:03:19,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:03:19,041 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) [2023-12-19 22:03:22,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:03:22,343 INFO L93 Difference]: Finished difference Result 1180 states and 1987 transitions. [2023-12-19 22:03:22,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 22:03:22,344 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 [2023-12-19 22:03:22,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:03:22,348 INFO L225 Difference]: With dead ends: 1180 [2023-12-19 22:03:22,349 INFO L226 Difference]: Without dead ends: 687 [2023-12-19 22:03:22,351 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 [2023-12-19 22:03:22,352 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 1283 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 371 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1330 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 2752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 371 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-19 22:03:22,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1330 Valid, 1006 Invalid, 2752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [371 Valid, 2381 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-19 22:03:22,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2023-12-19 22:03:22,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 505. [2023-12-19 22:03:22,426 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) [2023-12-19 22:03:22,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 844 transitions. [2023-12-19 22:03:22,430 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 844 transitions. Word has length 91 [2023-12-19 22:03:22,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:03:22,430 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 844 transitions. [2023-12-19 22:03:22,431 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) [2023-12-19 22:03:22,431 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 844 transitions. [2023-12-19 22:03:22,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-19 22:03:22,433 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:03:22,433 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] [2023-12-19 22:03:22,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 22:03:22,434 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:03:22,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:03:22,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1134222316, now seen corresponding path program 1 times [2023-12-19 22:03:22,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:03:22,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282687519] [2023-12-19 22:03:22,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:03:22,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:03:22,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:22,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:03:22,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:22,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:22,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:22,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 22:03:22,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:22,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 22:03:22,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:22,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:22,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:22,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:03:22,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:22,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:03:22,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:22,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:22,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:22,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:22,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:22,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:03:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:22,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-19 22:03:22,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:22,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 22:03:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:22,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:22,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-19 22:03:22,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:22,782 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 22:03:22,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:03:22,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282687519] [2023-12-19 22:03:22,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282687519] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:03:22,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:03:22,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:03:22,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26650629] [2023-12-19 22:03:22,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:03:22,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:03:22,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:03:22,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:03:22,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:03:22,785 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) [2023-12-19 22:03:25,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:03:25,833 INFO L93 Difference]: Finished difference Result 1180 states and 1986 transitions. [2023-12-19 22:03:25,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 22:03:25,833 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 [2023-12-19 22:03:25,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:03:25,838 INFO L225 Difference]: With dead ends: 1180 [2023-12-19 22:03:25,838 INFO L226 Difference]: Without dead ends: 687 [2023-12-19 22:03:25,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:03:25,841 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 1268 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 2398 mSolverCounterSat, 366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 2764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 366 IncrementalHoareTripleChecker+Valid, 2398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-19 22:03:25,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1315 Valid, 1046 Invalid, 2764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [366 Valid, 2398 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-19 22:03:25,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2023-12-19 22:03:25,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 505. [2023-12-19 22:03:25,916 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) [2023-12-19 22:03:25,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 843 transitions. [2023-12-19 22:03:25,920 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 843 transitions. Word has length 92 [2023-12-19 22:03:25,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:03:25,921 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 843 transitions. [2023-12-19 22:03:25,921 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) [2023-12-19 22:03:25,921 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 843 transitions. [2023-12-19 22:03:25,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-19 22:03:25,923 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:03:25,923 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] [2023-12-19 22:03:25,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 22:03:25,923 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:03:25,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:03:25,924 INFO L85 PathProgramCache]: Analyzing trace with hash -2847333, now seen corresponding path program 1 times [2023-12-19 22:03:25,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:03:25,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059058286] [2023-12-19 22:03:25,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:03:25,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:03:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:26,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:03:26,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:26,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:26,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:26,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 22:03:26,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:26,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-19 22:03:26,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:26,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:26,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:26,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 22:03:26,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:26,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 22:03:26,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:26,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:26,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:26,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:26,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:03:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:26,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 22:03:26,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:26,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:03:26,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:26,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:26,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 22:03:26,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:26,210 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 22:03:26,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:03:26,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059058286] [2023-12-19 22:03:26,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059058286] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:03:26,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:03:26,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:03:26,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696586269] [2023-12-19 22:03:26,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:03:26,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:03:26,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:03:26,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:03:26,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:03:26,217 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) [2023-12-19 22:03:29,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:03:29,229 INFO L93 Difference]: Finished difference Result 1180 states and 1985 transitions. [2023-12-19 22:03:29,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 22:03:29,230 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 [2023-12-19 22:03:29,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:03:29,235 INFO L225 Difference]: With dead ends: 1180 [2023-12-19 22:03:29,235 INFO L226 Difference]: Without dead ends: 687 [2023-12-19 22:03:29,238 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 [2023-12-19 22:03:29,239 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 1272 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 2394 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 2761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 2394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-19 22:03:29,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1319 Valid, 1018 Invalid, 2761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [367 Valid, 2394 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-19 22:03:29,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2023-12-19 22:03:29,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 505. [2023-12-19 22:03:29,310 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) [2023-12-19 22:03:29,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 842 transitions. [2023-12-19 22:03:29,314 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 842 transitions. Word has length 93 [2023-12-19 22:03:29,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:03:29,314 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 842 transitions. [2023-12-19 22:03:29,314 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) [2023-12-19 22:03:29,314 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 842 transitions. [2023-12-19 22:03:29,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-19 22:03:29,317 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:03:29,317 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] [2023-12-19 22:03:29,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 22:03:29,317 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:03:29,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:03:29,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1757444304, now seen corresponding path program 1 times [2023-12-19 22:03:29,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:03:29,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373532742] [2023-12-19 22:03:29,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:03:29,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:03:29,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:29,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:03:29,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:29,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:29,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:29,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:03:29,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:29,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 22:03:29,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:29,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:29,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:29,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-19 22:03:29,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:29,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 22:03:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:29,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:29,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:29,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:29,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:29,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:03:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:29,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 22:03:29,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:29,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-19 22:03:29,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:29,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:29,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:29,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:03:29,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:29,749 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 22:03:29,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:03:29,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373532742] [2023-12-19 22:03:29,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373532742] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:03:29,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:03:29,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 22:03:29,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310237711] [2023-12-19 22:03:29,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:03:29,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 22:03:29,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:03:29,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 22:03:29,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:03:29,752 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) [2023-12-19 22:03:33,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:03:33,944 INFO L93 Difference]: Finished difference Result 1200 states and 2019 transitions. [2023-12-19 22:03:33,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-19 22:03:33,944 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 [2023-12-19 22:03:33,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:03:33,948 INFO L225 Difference]: With dead ends: 1200 [2023-12-19 22:03:33,948 INFO L226 Difference]: Without dead ends: 711 [2023-12-19 22:03:33,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2023-12-19 22:03:33,951 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 1382 mSDsluCounter, 1667 mSDsCounter, 0 mSdLazyCounter, 4604 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 1987 SdHoareTripleChecker+Invalid, 4977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 4604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-19 22:03:33,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1429 Valid, 1987 Invalid, 4977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 4604 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-19 22:03:33,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2023-12-19 22:03:34,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 517. [2023-12-19 22:03:34,028 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) [2023-12-19 22:03:34,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 861 transitions. [2023-12-19 22:03:34,031 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 861 transitions. Word has length 94 [2023-12-19 22:03:34,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:03:34,032 INFO L495 AbstractCegarLoop]: Abstraction has 517 states and 861 transitions. [2023-12-19 22:03:34,032 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) [2023-12-19 22:03:34,032 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 861 transitions. [2023-12-19 22:03:34,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-19 22:03:34,034 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:03:34,034 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] [2023-12-19 22:03:34,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 22:03:34,035 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:03:34,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:03:34,035 INFO L85 PathProgramCache]: Analyzing trace with hash 272388753, now seen corresponding path program 1 times [2023-12-19 22:03:34,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:03:34,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288867547] [2023-12-19 22:03:34,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:03:34,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:03:34,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:34,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:03:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:34,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:34,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:34,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:03:34,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:34,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 22:03:34,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:34,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:34,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:34,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-19 22:03:34,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:34,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 22:03:34,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:34,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:34,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:34,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:34,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:34,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:03:34,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:34,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 22:03:34,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:34,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-19 22:03:34,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:34,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:34,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:34,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:03:34,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:34,321 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 22:03:34,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:03:34,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288867547] [2023-12-19 22:03:34,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288867547] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:03:34,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:03:34,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:03:34,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384016498] [2023-12-19 22:03:34,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:03:34,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:03:34,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:03:34,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:03:34,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:03:34,323 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) [2023-12-19 22:03:37,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:03:37,540 INFO L93 Difference]: Finished difference Result 1239 states and 2088 transitions. [2023-12-19 22:03:37,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 22:03:37,541 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 [2023-12-19 22:03:37,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:03:37,545 INFO L225 Difference]: With dead ends: 1239 [2023-12-19 22:03:37,545 INFO L226 Difference]: Without dead ends: 742 [2023-12-19 22:03:37,547 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 [2023-12-19 22:03:37,548 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 1385 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 2338 mSolverCounterSat, 376 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 2714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 376 IncrementalHoareTripleChecker+Valid, 2338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-19 22:03:37,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1432 Valid, 1035 Invalid, 2714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [376 Valid, 2338 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-19 22:03:37,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2023-12-19 22:03:37,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 536. [2023-12-19 22:03:37,627 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) [2023-12-19 22:03:37,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 888 transitions. [2023-12-19 22:03:37,630 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 888 transitions. Word has length 94 [2023-12-19 22:03:37,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:03:37,630 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 888 transitions. [2023-12-19 22:03:37,630 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) [2023-12-19 22:03:37,630 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 888 transitions. [2023-12-19 22:03:37,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-19 22:03:37,633 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:03:37,633 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] [2023-12-19 22:03:37,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 22:03:37,633 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:03:37,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:03:37,633 INFO L85 PathProgramCache]: Analyzing trace with hash -800450367, now seen corresponding path program 1 times [2023-12-19 22:03:37,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:03:37,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325659656] [2023-12-19 22:03:37,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:03:37,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:03:37,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:37,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:03:37,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:37,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:37,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:03:37,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:37,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 22:03:37,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:37,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:37,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 22:03:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:37,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-19 22:03:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:37,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:37,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:37,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:37,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:03:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:37,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-19 22:03:37,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:37,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 22:03:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:37,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:37,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-19 22:03:37,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:37,873 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 22:03:37,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:03:37,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325659656] [2023-12-19 22:03:37,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325659656] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:03:37,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:03:37,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:03:37,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895085663] [2023-12-19 22:03:37,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:03:37,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:03:37,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:03:37,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:03:37,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:03:37,875 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) [2023-12-19 22:03:40,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:03:40,670 INFO L93 Difference]: Finished difference Result 1214 states and 2023 transitions. [2023-12-19 22:03:40,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 22:03:40,670 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 [2023-12-19 22:03:40,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:03:40,673 INFO L225 Difference]: With dead ends: 1214 [2023-12-19 22:03:40,673 INFO L226 Difference]: Without dead ends: 734 [2023-12-19 22:03:40,675 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 [2023-12-19 22:03:40,676 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 1343 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 2314 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1390 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 2686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 2314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-19 22:03:40,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1390 Valid, 1056 Invalid, 2686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 2314 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-19 22:03:40,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2023-12-19 22:03:40,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 536. [2023-12-19 22:03:40,757 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) [2023-12-19 22:03:40,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 883 transitions. [2023-12-19 22:03:40,760 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 883 transitions. Word has length 95 [2023-12-19 22:03:40,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:03:40,760 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 883 transitions. [2023-12-19 22:03:40,760 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) [2023-12-19 22:03:40,760 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 883 transitions. [2023-12-19 22:03:40,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-19 22:03:40,763 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:03:40,764 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] [2023-12-19 22:03:40,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 22:03:40,764 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:03:40,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:03:40,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1550383980, now seen corresponding path program 1 times [2023-12-19 22:03:40,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:03:40,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592407295] [2023-12-19 22:03:40,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:03:40,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:03:40,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:40,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:03:40,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:40,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:40,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:40,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:03:40,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:41,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-19 22:03:41,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:41,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:41,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:41,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 22:03:41,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:41,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-19 22:03:41,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:41,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:41,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:41,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:41,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:41,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:03:41,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:41,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-19 22:03:41,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:41,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-19 22:03:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:41,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:41,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:41,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 22:03:41,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:41,041 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 22:03:41,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:03:41,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592407295] [2023-12-19 22:03:41,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592407295] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:03:41,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:03:41,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:03:41,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783896903] [2023-12-19 22:03:41,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:03:41,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:03:41,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:03:41,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:03:41,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:03:41,044 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) [2023-12-19 22:03:43,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:03:43,762 INFO L93 Difference]: Finished difference Result 1214 states and 2018 transitions. [2023-12-19 22:03:43,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 22:03:43,763 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 [2023-12-19 22:03:43,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:03:43,765 INFO L225 Difference]: With dead ends: 1214 [2023-12-19 22:03:43,765 INFO L226 Difference]: Without dead ends: 734 [2023-12-19 22:03:43,767 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 [2023-12-19 22:03:43,768 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 1345 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 2297 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1392 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 2669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 2297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-19 22:03:43,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1392 Valid, 1012 Invalid, 2669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 2297 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-19 22:03:43,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2023-12-19 22:03:43,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 536. [2023-12-19 22:03:43,847 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) [2023-12-19 22:03:43,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 878 transitions. [2023-12-19 22:03:43,850 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 878 transitions. Word has length 96 [2023-12-19 22:03:43,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:03:43,851 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 878 transitions. [2023-12-19 22:03:43,851 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) [2023-12-19 22:03:43,851 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 878 transitions. [2023-12-19 22:03:43,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-19 22:03:43,853 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:03:43,854 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] [2023-12-19 22:03:43,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-19 22:03:43,854 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:03:43,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:03:43,854 INFO L85 PathProgramCache]: Analyzing trace with hash 2031516636, now seen corresponding path program 1 times [2023-12-19 22:03:43,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:03:43,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467314034] [2023-12-19 22:03:43,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:03:43,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:03:43,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:44,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:03:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:44,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:44,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:44,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:03:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:44,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-19 22:03:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:44,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:44,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:44,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 22:03:44,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:44,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 22:03:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:44,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:44,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:44,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:44,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:44,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:03:44,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:44,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 22:03:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:44,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 22:03:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:44,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:44,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-19 22:03:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:44,185 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 22:03:44,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:03:44,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467314034] [2023-12-19 22:03:44,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467314034] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:03:44,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:03:44,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 22:03:44,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990783237] [2023-12-19 22:03:44,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:03:44,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 22:03:44,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:03:44,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 22:03:44,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:03:44,187 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) [2023-12-19 22:03:48,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:03:48,352 INFO L93 Difference]: Finished difference Result 1214 states and 2010 transitions. [2023-12-19 22:03:48,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 22:03:48,353 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 [2023-12-19 22:03:48,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:03:48,356 INFO L225 Difference]: With dead ends: 1214 [2023-12-19 22:03:48,356 INFO L226 Difference]: Without dead ends: 748 [2023-12-19 22:03:48,358 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 [2023-12-19 22:03:48,359 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 1322 mSDsluCounter, 1632 mSDsCounter, 0 mSdLazyCounter, 4529 mSolverCounterSat, 378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1369 SdHoareTripleChecker+Valid, 1944 SdHoareTripleChecker+Invalid, 4907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 378 IncrementalHoareTripleChecker+Valid, 4529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-19 22:03:48,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1369 Valid, 1944 Invalid, 4907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [378 Valid, 4529 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-19 22:03:48,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2023-12-19 22:03:48,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 538. [2023-12-19 22:03:48,438 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) [2023-12-19 22:03:48,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 879 transitions. [2023-12-19 22:03:48,440 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 879 transitions. Word has length 97 [2023-12-19 22:03:48,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:03:48,441 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 879 transitions. [2023-12-19 22:03:48,441 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) [2023-12-19 22:03:48,441 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 879 transitions. [2023-12-19 22:03:48,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-19 22:03:48,443 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:03:48,443 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:03:48,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-19 22:03:48,443 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:03:48,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:03:48,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1634053892, now seen corresponding path program 1 times [2023-12-19 22:03:48,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:03:48,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701821152] [2023-12-19 22:03:48,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:03:48,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:03:48,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:48,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:03:48,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:48,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:48,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:03:48,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:48,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-19 22:03:48,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:48,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:48,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 22:03:48,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:48,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 22:03:48,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:48,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:48,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:48,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:48,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:48,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:03:48,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:48,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 22:03:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:48,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 22:03:48,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:48,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:48,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:48,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-19 22:03:48,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:48,685 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 22:03:48,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:03:48,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701821152] [2023-12-19 22:03:48,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701821152] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:03:48,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:03:48,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:03:48,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115436662] [2023-12-19 22:03:48,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:03:48,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:03:48,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:03:48,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:03:48,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:03:48,687 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) [2023-12-19 22:03:51,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:03:51,498 INFO L93 Difference]: Finished difference Result 1218 states and 2013 transitions. [2023-12-19 22:03:51,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 22:03:51,499 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 [2023-12-19 22:03:51,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:03:51,502 INFO L225 Difference]: With dead ends: 1218 [2023-12-19 22:03:51,502 INFO L226 Difference]: Without dead ends: 736 [2023-12-19 22:03:51,503 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 [2023-12-19 22:03:51,504 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 1326 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 2279 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1373 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 2652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 2279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-19 22:03:51,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1373 Valid, 1028 Invalid, 2652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 2279 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-19 22:03:51,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2023-12-19 22:03:51,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 538. [2023-12-19 22:03:51,582 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) [2023-12-19 22:03:51,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 874 transitions. [2023-12-19 22:03:51,585 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 874 transitions. Word has length 97 [2023-12-19 22:03:51,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:03:51,585 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 874 transitions. [2023-12-19 22:03:51,585 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) [2023-12-19 22:03:51,585 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 874 transitions. [2023-12-19 22:03:51,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-19 22:03:51,587 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:03:51,588 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] [2023-12-19 22:03:51,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-19 22:03:51,588 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:03:51,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:03:51,588 INFO L85 PathProgramCache]: Analyzing trace with hash 758062505, now seen corresponding path program 1 times [2023-12-19 22:03:51,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:03:51,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572041396] [2023-12-19 22:03:51,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:03:51,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:03:51,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:51,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:03:51,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:51,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:51,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:51,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:03:51,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:51,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:03:51,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:51,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:51,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:51,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 22:03:51,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:51,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 22:03:51,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:51,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:51,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:51,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:51,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:51,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:03:51,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:51,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-19 22:03:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:51,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 22:03:51,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:51,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:51,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:51,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-19 22:03:51,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:51,976 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 22:03:51,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:03:51,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572041396] [2023-12-19 22:03:51,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572041396] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:03:51,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:03:51,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 22:03:51,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235727841] [2023-12-19 22:03:51,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:03:51,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 22:03:51,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:03:51,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 22:03:51,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:03:51,978 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) [2023-12-19 22:03:56,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:03:56,119 INFO L93 Difference]: Finished difference Result 1236 states and 2033 transitions. [2023-12-19 22:03:56,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 22:03:56,119 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 [2023-12-19 22:03:56,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:03:56,123 INFO L225 Difference]: With dead ends: 1236 [2023-12-19 22:03:56,123 INFO L226 Difference]: Without dead ends: 766 [2023-12-19 22:03:56,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-12-19 22:03:56,125 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 1328 mSDsluCounter, 1644 mSDsCounter, 0 mSdLazyCounter, 4457 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 1958 SdHoareTripleChecker+Invalid, 4837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 4457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-19 22:03:56,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1375 Valid, 1958 Invalid, 4837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 4457 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-19 22:03:56,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2023-12-19 22:03:56,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 544. [2023-12-19 22:03:56,192 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) [2023-12-19 22:03:56,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 879 transitions. [2023-12-19 22:03:56,194 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 879 transitions. Word has length 98 [2023-12-19 22:03:56,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:03:56,195 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 879 transitions. [2023-12-19 22:03:56,195 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) [2023-12-19 22:03:56,195 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 879 transitions. [2023-12-19 22:03:56,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-19 22:03:56,197 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:03:56,197 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] [2023-12-19 22:03:56,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-19 22:03:56,198 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:03:56,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:03:56,198 INFO L85 PathProgramCache]: Analyzing trace with hash -318271417, now seen corresponding path program 1 times [2023-12-19 22:03:56,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:03:56,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963631341] [2023-12-19 22:03:56,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:03:56,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:03:56,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:56,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:03:56,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:56,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:56,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:56,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:03:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:56,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 22:03:56,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:56,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:56,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:56,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 22:03:56,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:56,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 22:03:56,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:56,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:56,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:56,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:56,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:56,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:03:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:56,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-19 22:03:56,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:56,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 22:03:56,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:56,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:56,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:56,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-19 22:03:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:56,455 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 22:03:56,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:03:56,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963631341] [2023-12-19 22:03:56,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963631341] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:03:56,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:03:56,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:03:56,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142012150] [2023-12-19 22:03:56,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:03:56,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:03:56,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:03:56,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:03:56,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:03:56,457 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) [2023-12-19 22:03:59,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:03:59,309 INFO L93 Difference]: Finished difference Result 1233 states and 2019 transitions. [2023-12-19 22:03:59,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 22:03:59,310 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 [2023-12-19 22:03:59,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:03:59,313 INFO L225 Difference]: With dead ends: 1233 [2023-12-19 22:03:59,313 INFO L226 Difference]: Without dead ends: 745 [2023-12-19 22:03:59,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-19 22:03:59,316 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 1307 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 2274 mSolverCounterSat, 371 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1354 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 2645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 371 IncrementalHoareTripleChecker+Valid, 2274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-19 22:03:59,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1354 Valid, 1062 Invalid, 2645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [371 Valid, 2274 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-19 22:03:59,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2023-12-19 22:03:59,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 544. [2023-12-19 22:03:59,399 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) [2023-12-19 22:03:59,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 874 transitions. [2023-12-19 22:03:59,401 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 874 transitions. Word has length 98 [2023-12-19 22:03:59,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:03:59,402 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 874 transitions. [2023-12-19 22:03:59,402 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) [2023-12-19 22:03:59,402 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 874 transitions. [2023-12-19 22:03:59,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-19 22:03:59,404 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:03:59,404 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] [2023-12-19 22:03:59,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-19 22:03:59,404 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:03:59,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:03:59,405 INFO L85 PathProgramCache]: Analyzing trace with hash -2141220073, now seen corresponding path program 1 times [2023-12-19 22:03:59,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:03:59,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444368072] [2023-12-19 22:03:59,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:03:59,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:03:59,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:59,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:03:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:59,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:59,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:59,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:03:59,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:59,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:03:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:59,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:59,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 22:03:59,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:59,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 22:03:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:59,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:59,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:59,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:59,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:03:59,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:59,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 22:03:59,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:59,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 22:03:59,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:59,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:03:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:59,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 22:03:59,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:03:59,712 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 22:03:59,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:03:59,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444368072] [2023-12-19 22:03:59,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444368072] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:03:59,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:03:59,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 22:03:59,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684528976] [2023-12-19 22:03:59,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:03:59,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 22:03:59,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:03:59,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 22:03:59,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:03:59,714 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) [2023-12-19 22:04:03,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:04:03,791 INFO L93 Difference]: Finished difference Result 1248 states and 2034 transitions. [2023-12-19 22:04:03,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 22:04:03,792 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 [2023-12-19 22:04:03,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:04:03,797 INFO L225 Difference]: With dead ends: 1248 [2023-12-19 22:04:03,797 INFO L226 Difference]: Without dead ends: 775 [2023-12-19 22:04:03,800 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 [2023-12-19 22:04:03,800 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 1306 mSDsluCounter, 1688 mSDsCounter, 0 mSdLazyCounter, 4432 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1353 SdHoareTripleChecker+Valid, 2011 SdHoareTripleChecker+Invalid, 4812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 4432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-19 22:04:03,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1353 Valid, 2011 Invalid, 4812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 4432 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-19 22:04:03,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2023-12-19 22:04:03,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 552. [2023-12-19 22:04:03,885 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) [2023-12-19 22:04:03,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 881 transitions. [2023-12-19 22:04:03,887 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 881 transitions. Word has length 99 [2023-12-19 22:04:03,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:04:03,888 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 881 transitions. [2023-12-19 22:04:03,888 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) [2023-12-19 22:04:03,888 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 881 transitions. [2023-12-19 22:04:03,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-19 22:04:03,890 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:04:03,890 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, 1, 1, 1] [2023-12-19 22:04:03,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-19 22:04:03,890 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:04:03,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:04:03,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1229578953, now seen corresponding path program 1 times [2023-12-19 22:04:03,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:04:03,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192451074] [2023-12-19 22:04:03,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:03,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:04:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:04,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:04:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:04,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:04,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:04,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:04:04,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:04,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:04:04,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:04,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:04,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:04,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 22:04:04,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:04,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 22:04:04,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:04,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:04,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:04,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:04,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:04,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:04:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:04,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 22:04:04,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:04,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 22:04:04,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:04,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:04,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 22:04:04,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:04,127 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 22:04:04,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:04:04,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192451074] [2023-12-19 22:04:04,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192451074] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:04:04,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:04:04,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:04:04,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613003510] [2023-12-19 22:04:04,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:04:04,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:04:04,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:04:04,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:04:04,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:04:04,129 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) [2023-12-19 22:04:07,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:04:07,124 INFO L93 Difference]: Finished difference Result 1289 states and 2076 transitions. [2023-12-19 22:04:07,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 22:04:07,124 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 [2023-12-19 22:04:07,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:04:07,128 INFO L225 Difference]: With dead ends: 1289 [2023-12-19 22:04:07,128 INFO L226 Difference]: Without dead ends: 731 [2023-12-19 22:04:07,130 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 [2023-12-19 22:04:07,131 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 1241 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 2298 mSolverCounterSat, 371 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1288 SdHoareTripleChecker+Valid, 1053 SdHoareTripleChecker+Invalid, 2669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 371 IncrementalHoareTripleChecker+Valid, 2298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-19 22:04:07,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1288 Valid, 1053 Invalid, 2669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [371 Valid, 2298 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-19 22:04:07,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2023-12-19 22:04:07,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 534. [2023-12-19 22:04:07,221 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) [2023-12-19 22:04:07,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 855 transitions. [2023-12-19 22:04:07,223 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 855 transitions. Word has length 99 [2023-12-19 22:04:07,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:04:07,223 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 855 transitions. [2023-12-19 22:04:07,223 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) [2023-12-19 22:04:07,223 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 855 transitions. [2023-12-19 22:04:07,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-19 22:04:07,226 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:04:07,226 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] [2023-12-19 22:04:07,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-19 22:04:07,227 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:04:07,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:04:07,227 INFO L85 PathProgramCache]: Analyzing trace with hash 393390340, now seen corresponding path program 1 times [2023-12-19 22:04:07,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:04:07,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257069387] [2023-12-19 22:04:07,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:07,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:04:07,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:07,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:04:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:07,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:07,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:07,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:04:07,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:07,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 22:04:07,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:07,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:07,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:07,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:04:07,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:07,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 22:04:07,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:07,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:07,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:07,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:07,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:07,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:04:07,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:07,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 22:04:07,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:07,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-19 22:04:07,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:07,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:07,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:07,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-19 22:04:07,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:07,549 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 22:04:07,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:04:07,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257069387] [2023-12-19 22:04:07,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257069387] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:04:07,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:04:07,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 22:04:07,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415702155] [2023-12-19 22:04:07,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:04:07,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 22:04:07,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:04:07,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 22:04:07,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:04:07,553 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) [2023-12-19 22:04:11,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:04:11,619 INFO L93 Difference]: Finished difference Result 1232 states and 1997 transitions. [2023-12-19 22:04:11,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 22:04:11,620 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 [2023-12-19 22:04:11,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:04:11,623 INFO L225 Difference]: With dead ends: 1232 [2023-12-19 22:04:11,623 INFO L226 Difference]: Without dead ends: 757 [2023-12-19 22:04:11,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-12-19 22:04:11,626 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 1278 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 4349 mSolverCounterSat, 375 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1325 SdHoareTripleChecker+Valid, 1998 SdHoareTripleChecker+Invalid, 4724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 375 IncrementalHoareTripleChecker+Valid, 4349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-19 22:04:11,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1325 Valid, 1998 Invalid, 4724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [375 Valid, 4349 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-19 22:04:11,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2023-12-19 22:04:11,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 544. [2023-12-19 22:04:11,708 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) [2023-12-19 22:04:11,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 865 transitions. [2023-12-19 22:04:11,711 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 865 transitions. Word has length 100 [2023-12-19 22:04:11,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:04:11,711 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 865 transitions. [2023-12-19 22:04:11,711 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) [2023-12-19 22:04:11,711 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 865 transitions. [2023-12-19 22:04:11,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-19 22:04:11,713 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:04:11,714 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] [2023-12-19 22:04:11,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-19 22:04:11,714 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:04:11,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:04:11,714 INFO L85 PathProgramCache]: Analyzing trace with hash -836366524, now seen corresponding path program 1 times [2023-12-19 22:04:11,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:04:11,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871956852] [2023-12-19 22:04:11,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:11,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:04:11,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:11,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:04:11,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:11,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:11,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:11,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:04:11,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:11,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:04:11,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:11,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:11,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:11,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 22:04:11,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:11,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:04:11,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:11,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:11,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:11,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:04:11,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:11,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:04:11,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:11,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 22:04:11,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:11,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:11,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:11,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-19 22:04:11,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:11,969 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 22:04:11,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:04:11,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871956852] [2023-12-19 22:04:11,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871956852] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:04:11,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:04:11,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 22:04:11,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961879909] [2023-12-19 22:04:11,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:04:11,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:04:11,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:04:11,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:04:11,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 22:04:11,971 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) [2023-12-19 22:04:15,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:04:15,016 INFO L93 Difference]: Finished difference Result 1234 states and 1991 transitions. [2023-12-19 22:04:15,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 22:04:15,016 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 [2023-12-19 22:04:15,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:04:15,020 INFO L225 Difference]: With dead ends: 1234 [2023-12-19 22:04:15,020 INFO L226 Difference]: Without dead ends: 734 [2023-12-19 22:04:15,022 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 [2023-12-19 22:04:15,022 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 1320 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 2225 mSolverCounterSat, 375 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1367 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 2600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 375 IncrementalHoareTripleChecker+Valid, 2225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-19 22:04:15,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1367 Valid, 1063 Invalid, 2600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [375 Valid, 2225 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-19 22:04:15,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2023-12-19 22:04:15,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 544. [2023-12-19 22:04:15,113 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) [2023-12-19 22:04:15,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 861 transitions. [2023-12-19 22:04:15,115 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 861 transitions. Word has length 101 [2023-12-19 22:04:15,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:04:15,116 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 861 transitions. [2023-12-19 22:04:15,116 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) [2023-12-19 22:04:15,116 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 861 transitions. [2023-12-19 22:04:15,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-19 22:04:15,118 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:04:15,118 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] [2023-12-19 22:04:15,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-19 22:04:15,119 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:04:15,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:04:15,119 INFO L85 PathProgramCache]: Analyzing trace with hash -863432126, now seen corresponding path program 1 times [2023-12-19 22:04:15,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:04:15,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546837271] [2023-12-19 22:04:15,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:15,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:04:15,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:15,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:04:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:15,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:15,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:04:15,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:15,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:04:15,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:15,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:15,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 22:04:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:15,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:04:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:15,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:15,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:15,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:15,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:04:15,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:15,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:04:15,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:15,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 22:04:15,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:15,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:15,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:15,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-19 22:04:15,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:15,379 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-19 22:04:15,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:04:15,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546837271] [2023-12-19 22:04:15,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546837271] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:04:15,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258283704] [2023-12-19 22:04:15,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:15,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:04:15,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:04:15,384 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) [2023-12-19 22:04:15,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 22:04:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:15,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 1184 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 22:04:15,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:04:15,810 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-19 22:04:15,810 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:04:15,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258283704] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:04:15,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:04:15,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-19 22:04:15,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504226624] [2023-12-19 22:04:15,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:04:15,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 22:04:15,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:04:15,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 22:04:15,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-19 22:04:15,812 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) [2023-12-19 22:04:16,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:04:16,289 INFO L93 Difference]: Finished difference Result 1026 states and 1674 transitions. [2023-12-19 22:04:16,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 22:04:16,289 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 [2023-12-19 22:04:16,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:04:16,292 INFO L225 Difference]: With dead ends: 1026 [2023-12-19 22:04:16,292 INFO L226 Difference]: Without dead ends: 552 [2023-12-19 22:04:16,294 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 [2023-12-19 22:04:16,294 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, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 22:04:16,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 1961 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 22:04:16,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2023-12-19 22:04:16,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2023-12-19 22:04:16,372 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) [2023-12-19 22:04:16,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 874 transitions. [2023-12-19 22:04:16,374 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 874 transitions. Word has length 101 [2023-12-19 22:04:16,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:04:16,375 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 874 transitions. [2023-12-19 22:04:16,375 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) [2023-12-19 22:04:16,375 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 874 transitions. [2023-12-19 22:04:16,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-19 22:04:16,377 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:04:16,377 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] [2023-12-19 22:04:16,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 22:04:16,584 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 [2023-12-19 22:04:16,584 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:04:16,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:04:16,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1929544579, now seen corresponding path program 1 times [2023-12-19 22:04:16,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:04:16,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193540722] [2023-12-19 22:04:16,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:16,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:04:16,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:16,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:04:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:16,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:16,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:16,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:04:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:16,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:04:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:16,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:16,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:16,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 22:04:16,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:16,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-19 22:04:16,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:16,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:16,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:16,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:16,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 22:04:16,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:16,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 22:04:16,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:16,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-19 22:04:16,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:16,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:16,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-19 22:04:16,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:16,882 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-19 22:04:16,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:04:16,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193540722] [2023-12-19 22:04:16,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193540722] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:04:16,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477815254] [2023-12-19 22:04:16,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:16,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:04:16,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:04:16,885 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) [2023-12-19 22:04:16,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 22:04:17,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:17,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 1187 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 22:04:17,124 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:04:17,222 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-19 22:04:17,223 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:04:17,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477815254] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:04:17,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:04:17,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-19 22:04:17,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247109684] [2023-12-19 22:04:17,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:04:17,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 22:04:17,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:04:17,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 22:04:17,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-19 22:04:17,224 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) [2023-12-19 22:04:17,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:04:17,668 INFO L93 Difference]: Finished difference Result 1042 states and 1697 transitions. [2023-12-19 22:04:17,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 22:04:17,668 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 [2023-12-19 22:04:17,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:04:17,670 INFO L225 Difference]: With dead ends: 1042 [2023-12-19 22:04:17,670 INFO L226 Difference]: Without dead ends: 560 [2023-12-19 22:04:17,673 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 [2023-12-19 22:04:17,673 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 [2023-12-19 22:04:17,673 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] [2023-12-19 22:04:17,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2023-12-19 22:04:17,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2023-12-19 22:04:17,760 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) [2023-12-19 22:04:17,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 887 transitions. [2023-12-19 22:04:17,762 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 887 transitions. Word has length 104 [2023-12-19 22:04:17,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:04:17,763 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 887 transitions. [2023-12-19 22:04:17,763 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) [2023-12-19 22:04:17,763 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 887 transitions. [2023-12-19 22:04:17,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-19 22:04:17,765 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:04:17,765 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] [2023-12-19 22:04:17,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 22:04:17,976 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 [2023-12-19 22:04:17,976 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:04:17,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:04:17,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1747128546, now seen corresponding path program 1 times [2023-12-19 22:04:17,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:04:17,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795356304] [2023-12-19 22:04:17,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:17,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:04:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:18,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:04:18,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:18,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:18,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:04:18,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:18,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:04:18,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:18,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:18,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:18,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-19 22:04:18,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:18,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 22:04:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:18,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:18,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:18,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:18,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 22:04:18,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:18,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 22:04:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:18,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:04:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:18,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:18,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:18,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-19 22:04:18,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:18,246 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-19 22:04:18,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:04:18,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795356304] [2023-12-19 22:04:18,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795356304] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:04:18,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1616826473] [2023-12-19 22:04:18,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:18,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:04:18,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:04:18,249 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) [2023-12-19 22:04:18,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 22:04:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:18,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 1190 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 22:04:18,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:04:18,566 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-19 22:04:18,567 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:04:18,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1616826473] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:04:18,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:04:18,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-19 22:04:18,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006435333] [2023-12-19 22:04:18,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:04:18,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 22:04:18,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:04:18,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 22:04:18,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-19 22:04:18,569 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) [2023-12-19 22:04:18,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:04:18,980 INFO L93 Difference]: Finished difference Result 1058 states and 1720 transitions. [2023-12-19 22:04:18,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 22:04:18,980 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 [2023-12-19 22:04:18,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:04:18,983 INFO L225 Difference]: With dead ends: 1058 [2023-12-19 22:04:18,983 INFO L226 Difference]: Without dead ends: 568 [2023-12-19 22:04:18,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-19 22:04:18,985 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 [2023-12-19 22:04:18,986 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] [2023-12-19 22:04:18,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2023-12-19 22:04:19,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2023-12-19 22:04:19,075 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) [2023-12-19 22:04:19,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 900 transitions. [2023-12-19 22:04:19,077 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 900 transitions. Word has length 107 [2023-12-19 22:04:19,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:04:19,078 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 900 transitions. [2023-12-19 22:04:19,078 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) [2023-12-19 22:04:19,078 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 900 transitions. [2023-12-19 22:04:19,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-19 22:04:19,080 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:04:19,080 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] [2023-12-19 22:04:19,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 22:04:19,287 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 [2023-12-19 22:04:19,288 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:04:19,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:04:19,289 INFO L85 PathProgramCache]: Analyzing trace with hash 958419095, now seen corresponding path program 1 times [2023-12-19 22:04:19,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:04:19,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939003254] [2023-12-19 22:04:19,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:19,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:04:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:19,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:04:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:19,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:19,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:04:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:19,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:04:19,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:19,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:19,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:19,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-19 22:04:19,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:19,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 22:04:19,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:19,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:19,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:19,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:19,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:19,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 22:04:19,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:19,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 22:04:19,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:19,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 22:04:19,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:19,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:19,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:19,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-19 22:04:19,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:19,564 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-19 22:04:19,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:04:19,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939003254] [2023-12-19 22:04:19,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939003254] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:04:19,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458983618] [2023-12-19 22:04:19,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:19,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:04:19,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:04:19,567 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) [2023-12-19 22:04:19,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 22:04:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:19,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 22:04:19,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:04:19,890 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-19 22:04:19,891 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:04:19,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458983618] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:04:19,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:04:19,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-19 22:04:19,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583559925] [2023-12-19 22:04:19,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:04:19,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 22:04:19,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:04:19,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 22:04:19,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-19 22:04:19,892 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) [2023-12-19 22:04:20,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:04:20,315 INFO L93 Difference]: Finished difference Result 1074 states and 1743 transitions. [2023-12-19 22:04:20,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 22:04:20,316 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 [2023-12-19 22:04:20,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:04:20,318 INFO L225 Difference]: With dead ends: 1074 [2023-12-19 22:04:20,318 INFO L226 Difference]: Without dead ends: 576 [2023-12-19 22:04:20,320 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 [2023-12-19 22:04:20,321 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 748 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2023-12-19 22:04:20,321 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] [2023-12-19 22:04:20,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2023-12-19 22:04:20,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 576. [2023-12-19 22:04:20,401 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) [2023-12-19 22:04:20,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 913 transitions. [2023-12-19 22:04:20,404 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 913 transitions. Word has length 110 [2023-12-19 22:04:20,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:04:20,404 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 913 transitions. [2023-12-19 22:04:20,404 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) [2023-12-19 22:04:20,404 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 913 transitions. [2023-12-19 22:04:20,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-19 22:04:20,406 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:04:20,406 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] [2023-12-19 22:04:20,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 22:04:20,613 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 [2023-12-19 22:04:20,613 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:04:20,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:04:20,614 INFO L85 PathProgramCache]: Analyzing trace with hash 130602490, now seen corresponding path program 1 times [2023-12-19 22:04:20,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:04:20,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585517425] [2023-12-19 22:04:20,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:20,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:04:20,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:20,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:04:20,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:20,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:20,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:20,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:04:20,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:21,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:04:21,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:21,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:21,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:21,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 22:04:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:21,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-19 22:04:21,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:21,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:21,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:21,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:21,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:04:21,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:21,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 22:04:21,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:21,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-19 22:04:21,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:21,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:21,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:21,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-19 22:04:21,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:21,135 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-19 22:04:21,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:04:21,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585517425] [2023-12-19 22:04:21,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585517425] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:04:21,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745943432] [2023-12-19 22:04:21,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:21,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:04:21,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:04:21,149 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) [2023-12-19 22:04:21,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 22:04:21,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:21,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 1196 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-19 22:04:21,409 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:04:21,526 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-19 22:04:21,526 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:04:21,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1745943432] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:04:21,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:04:21,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-12-19 22:04:21,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336797495] [2023-12-19 22:04:21,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:04:21,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 22:04:21,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:04:21,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 22:04:21,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2023-12-19 22:04:21,528 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) [2023-12-19 22:04:22,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:04:22,086 INFO L93 Difference]: Finished difference Result 1594 states and 2617 transitions. [2023-12-19 22:04:22,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 22:04:22,086 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 [2023-12-19 22:04:22,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:04:22,092 INFO L225 Difference]: With dead ends: 1594 [2023-12-19 22:04:22,092 INFO L226 Difference]: Without dead ends: 1088 [2023-12-19 22:04:22,095 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 [2023-12-19 22:04:22,095 INFO L413 NwaCegarLoop]: 824 mSDtfsCounter, 744 mSDsluCounter, 2192 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 3016 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 [2023-12-19 22:04:22,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [744 Valid, 3016 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 22:04:22,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2023-12-19 22:04:22,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 1080. [2023-12-19 22:04:22,291 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) [2023-12-19 22:04:22,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1753 transitions. [2023-12-19 22:04:22,296 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1753 transitions. Word has length 113 [2023-12-19 22:04:22,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:04:22,297 INFO L495 AbstractCegarLoop]: Abstraction has 1080 states and 1753 transitions. [2023-12-19 22:04:22,297 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) [2023-12-19 22:04:22,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1753 transitions. [2023-12-19 22:04:22,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-19 22:04:22,299 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:04:22,299 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] [2023-12-19 22:04:22,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 22:04:22,507 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 [2023-12-19 22:04:22,507 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:04:22,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:04:22,508 INFO L85 PathProgramCache]: Analyzing trace with hash 331074965, now seen corresponding path program 1 times [2023-12-19 22:04:22,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:04:22,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058812135] [2023-12-19 22:04:22,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:22,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:04:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:22,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:04:22,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:22,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:22,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:04:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:22,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:04:22,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:22,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:22,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:22,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 22:04:22,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:22,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-19 22:04:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:23,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:23,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:23,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:23,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:23,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:04:23,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:23,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 22:04:23,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:23,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:04:23,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:23,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-19 22:04:23,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:23,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:23,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:23,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 22:04:23,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:23,024 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-19 22:04:23,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:04:23,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058812135] [2023-12-19 22:04:23,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058812135] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:04:23,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787160142] [2023-12-19 22:04:23,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:23,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:04:23,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:04:23,026 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) [2023-12-19 22:04:23,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 22:04:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:23,296 INFO L262 TraceCheckSpWp]: Trace formula consists of 1212 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 22:04:23,300 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:04:23,314 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-19 22:04:23,314 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:04:23,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787160142] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:04:23,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:04:23,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2023-12-19 22:04:23,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570643783] [2023-12-19 22:04:23,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:04:23,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 22:04:23,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:04:23,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 22:04:23,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-19 22:04:23,316 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) [2023-12-19 22:04:23,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:04:23,638 INFO L93 Difference]: Finished difference Result 2587 states and 4282 transitions. [2023-12-19 22:04:23,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 22:04:23,639 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 [2023-12-19 22:04:23,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:04:23,647 INFO L225 Difference]: With dead ends: 2587 [2023-12-19 22:04:23,647 INFO L226 Difference]: Without dead ends: 1578 [2023-12-19 22:04:23,651 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 [2023-12-19 22:04:23,652 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 [2023-12-19 22:04:23,653 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] [2023-12-19 22:04:23,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2023-12-19 22:04:23,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 1080. [2023-12-19 22:04:23,865 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) [2023-12-19 22:04:23,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1752 transitions. [2023-12-19 22:04:23,870 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1752 transitions. Word has length 117 [2023-12-19 22:04:23,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:04:23,870 INFO L495 AbstractCegarLoop]: Abstraction has 1080 states and 1752 transitions. [2023-12-19 22:04:23,870 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) [2023-12-19 22:04:23,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1752 transitions. [2023-12-19 22:04:23,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-19 22:04:23,872 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:04:23,873 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] [2023-12-19 22:04:23,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-19 22:04:24,079 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 [2023-12-19 22:04:24,080 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:04:24,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:04:24,080 INFO L85 PathProgramCache]: Analyzing trace with hash -2040664297, now seen corresponding path program 1 times [2023-12-19 22:04:24,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:04:24,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82014429] [2023-12-19 22:04:24,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:24,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:04:24,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:24,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:04:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:24,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:24,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:04:24,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:24,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:04:24,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:24,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:24,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:24,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 22:04:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:24,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-19 22:04:24,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:24,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:24,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:24,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:24,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:04:24,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:24,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 22:04:24,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:24,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:04:24,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:24,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-19 22:04:24,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:24,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:24,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:24,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 22:04:24,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:24,569 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-19 22:04:24,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:04:24,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82014429] [2023-12-19 22:04:24,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82014429] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:04:24,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001678243] [2023-12-19 22:04:24,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:24,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:04:24,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:04:24,570 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) [2023-12-19 22:04:24,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-19 22:04:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:24,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 1211 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-19 22:04:24,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:04:24,862 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-19 22:04:24,862 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:04:24,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001678243] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:04:24,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:04:24,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-19 22:04:24,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099709477] [2023-12-19 22:04:24,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:04:24,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 22:04:24,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:04:24,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 22:04:24,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-19 22:04:24,864 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) [2023-12-19 22:04:25,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:04:25,124 INFO L93 Difference]: Finished difference Result 2666 states and 4361 transitions. [2023-12-19 22:04:25,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:04:25,125 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 [2023-12-19 22:04:25,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:04:25,133 INFO L225 Difference]: With dead ends: 2666 [2023-12-19 22:04:25,133 INFO L226 Difference]: Without dead ends: 1658 [2023-12-19 22:04:25,138 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 [2023-12-19 22:04:25,138 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 [2023-12-19 22:04:25,138 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] [2023-12-19 22:04:25,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2023-12-19 22:04:25,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 1654. [2023-12-19 22:04:25,383 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) [2023-12-19 22:04:25,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2676 transitions. [2023-12-19 22:04:25,390 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2676 transitions. Word has length 117 [2023-12-19 22:04:25,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:04:25,391 INFO L495 AbstractCegarLoop]: Abstraction has 1654 states and 2676 transitions. [2023-12-19 22:04:25,391 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) [2023-12-19 22:04:25,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2676 transitions. [2023-12-19 22:04:25,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-19 22:04:25,393 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:04:25,393 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] [2023-12-19 22:04:25,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-19 22:04:25,599 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 [2023-12-19 22:04:25,600 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:04:25,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:04:25,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1838840363, now seen corresponding path program 1 times [2023-12-19 22:04:25,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:04:25,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911160306] [2023-12-19 22:04:25,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:25,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:04:25,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:25,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:04:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:25,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:25,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:04:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:25,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:04:25,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:26,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:26,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 22:04:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:26,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-19 22:04:26,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:26,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:26,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:26,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:26,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:26,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:04:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:26,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 22:04:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:26,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:04:26,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:26,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-19 22:04:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:26,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:26,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 22:04:26,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:26,064 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-19 22:04:26,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:04:26,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911160306] [2023-12-19 22:04:26,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911160306] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:04:26,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327296897] [2023-12-19 22:04:26,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:26,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:04:26,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:04:26,066 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) [2023-12-19 22:04:26,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-19 22:04:26,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:26,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 1208 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-19 22:04:26,357 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:04:26,433 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-19 22:04:26,433 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:04:26,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327296897] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:04:26,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:04:26,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [12] total 13 [2023-12-19 22:04:26,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904073749] [2023-12-19 22:04:26,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:04:26,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 22:04:26,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:04:26,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 22:04:26,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-19 22:04:26,435 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) [2023-12-19 22:04:26,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:04:26,728 INFO L93 Difference]: Finished difference Result 2991 states and 4838 transitions. [2023-12-19 22:04:26,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 22:04:26,729 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 [2023-12-19 22:04:26,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:04:26,736 INFO L225 Difference]: With dead ends: 2991 [2023-12-19 22:04:26,736 INFO L226 Difference]: Without dead ends: 1409 [2023-12-19 22:04:26,745 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 [2023-12-19 22:04:26,745 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 [2023-12-19 22:04:26,748 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] [2023-12-19 22:04:26,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1409 states. [2023-12-19 22:04:26,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1409 to 1409. [2023-12-19 22:04:27,000 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) [2023-12-19 22:04:27,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1409 states to 1409 states and 2239 transitions. [2023-12-19 22:04:27,007 INFO L78 Accepts]: Start accepts. Automaton has 1409 states and 2239 transitions. Word has length 117 [2023-12-19 22:04:27,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:04:27,008 INFO L495 AbstractCegarLoop]: Abstraction has 1409 states and 2239 transitions. [2023-12-19 22:04:27,009 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) [2023-12-19 22:04:27,009 INFO L276 IsEmpty]: Start isEmpty. Operand 1409 states and 2239 transitions. [2023-12-19 22:04:27,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-19 22:04:27,012 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:04:27,012 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] [2023-12-19 22:04:27,022 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-19 22:04:27,219 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 [2023-12-19 22:04:27,219 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:04:27,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:04:27,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1377757797, now seen corresponding path program 1 times [2023-12-19 22:04:27,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:04:27,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175530279] [2023-12-19 22:04:27,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:27,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:04:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:27,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:04:27,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:27,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:27,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:27,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:04:27,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:27,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:04:27,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:27,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:27,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:27,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 22:04:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:27,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:04:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:27,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-19 22:04:27,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:27,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 22:04:27,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:27,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-19 22:04:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:27,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-19 22:04:27,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:27,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 22:04:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:27,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-19 22:04:27,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:27,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-19 22:04:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:27,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:27,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:27,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-19 22:04:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:27,672 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-12-19 22:04:27,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:04:27,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175530279] [2023-12-19 22:04:27,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175530279] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:04:27,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241482753] [2023-12-19 22:04:27,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:27,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:04:27,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:04:27,674 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) [2023-12-19 22:04:27,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-19 22:04:27,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:27,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 1306 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 22:04:27,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:04:27,973 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-19 22:04:27,973 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:04:27,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241482753] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:04:27,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:04:27,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-19 22:04:27,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201933126] [2023-12-19 22:04:27,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:04:27,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 22:04:27,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:04:27,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 22:04:27,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-19 22:04:27,975 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) [2023-12-19 22:04:28,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:04:28,385 INFO L93 Difference]: Finished difference Result 2824 states and 4556 transitions. [2023-12-19 22:04:28,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:04:28,386 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 [2023-12-19 22:04:28,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:04:28,393 INFO L225 Difference]: With dead ends: 2824 [2023-12-19 22:04:28,393 INFO L226 Difference]: Without dead ends: 1487 [2023-12-19 22:04:28,398 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 [2023-12-19 22:04:28,399 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 [2023-12-19 22:04:28,400 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] [2023-12-19 22:04:28,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1487 states. [2023-12-19 22:04:28,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1487 to 1487. [2023-12-19 22:04:28,613 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) [2023-12-19 22:04:28,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 2385 transitions. [2023-12-19 22:04:28,620 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 2385 transitions. Word has length 143 [2023-12-19 22:04:28,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:04:28,621 INFO L495 AbstractCegarLoop]: Abstraction has 1487 states and 2385 transitions. [2023-12-19 22:04:28,621 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) [2023-12-19 22:04:28,621 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 2385 transitions. [2023-12-19 22:04:28,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-19 22:04:28,624 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:04:28,624 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] [2023-12-19 22:04:28,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-19 22:04:28,831 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 [2023-12-19 22:04:28,831 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:04:28,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:04:28,832 INFO L85 PathProgramCache]: Analyzing trace with hash 935455538, now seen corresponding path program 1 times [2023-12-19 22:04:28,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:04:28,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424598777] [2023-12-19 22:04:28,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:28,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:04:28,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:29,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:04:29,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:29,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:29,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:29,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:04:29,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:29,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:04:29,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:29,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:29,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 22:04:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:29,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:04:29,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:29,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-19 22:04:29,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:29,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 22:04:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:29,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-19 22:04:29,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:29,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 22:04:29,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:29,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-19 22:04:29,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:29,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-19 22:04:29,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:29,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-19 22:04:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:29,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:29,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-19 22:04:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:29,280 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-12-19 22:04:29,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:04:29,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424598777] [2023-12-19 22:04:29,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424598777] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:04:29,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921433714] [2023-12-19 22:04:29,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:29,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:04:29,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:04:29,285 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) [2023-12-19 22:04:29,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-19 22:04:29,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:29,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 1311 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 22:04:29,518 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:04:29,551 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-19 22:04:29,551 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:04:29,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921433714] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:04:29,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:04:29,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-19 22:04:29,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795690858] [2023-12-19 22:04:29,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:04:29,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 22:04:29,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:04:29,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 22:04:29,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-19 22:04:29,553 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) [2023-12-19 22:04:29,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:04:29,870 INFO L93 Difference]: Finished difference Result 2980 states and 4846 transitions. [2023-12-19 22:04:29,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:04:29,870 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 [2023-12-19 22:04:29,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:04:29,878 INFO L225 Difference]: With dead ends: 2980 [2023-12-19 22:04:29,878 INFO L226 Difference]: Without dead ends: 1565 [2023-12-19 22:04:29,883 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 [2023-12-19 22:04:29,883 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 [2023-12-19 22:04:29,883 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] [2023-12-19 22:04:29,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2023-12-19 22:04:30,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1565. [2023-12-19 22:04:30,127 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) [2023-12-19 22:04:30,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 2531 transitions. [2023-12-19 22:04:30,133 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 2531 transitions. Word has length 148 [2023-12-19 22:04:30,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:04:30,133 INFO L495 AbstractCegarLoop]: Abstraction has 1565 states and 2531 transitions. [2023-12-19 22:04:30,133 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) [2023-12-19 22:04:30,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 2531 transitions. [2023-12-19 22:04:30,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-19 22:04:30,136 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:04:30,136 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] [2023-12-19 22:04:30,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-19 22:04:30,336 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 [2023-12-19 22:04:30,337 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:04:30,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:04:30,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1319894818, now seen corresponding path program 1 times [2023-12-19 22:04:30,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:04:30,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591484056] [2023-12-19 22:04:30,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:30,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:04:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:30,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:04:30,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:30,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:30,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:04:30,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:30,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:04:30,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:30,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:30,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:30,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 22:04:30,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:30,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:04:30,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:30,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-19 22:04:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:30,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 22:04:30,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:30,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-19 22:04:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:30,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 22:04:30,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:30,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-19 22:04:30,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:30,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-19 22:04:30,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:30,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-19 22:04:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:30,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:30,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:30,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-19 22:04:30,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:30,793 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-12-19 22:04:30,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:04:30,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591484056] [2023-12-19 22:04:30,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591484056] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:04:30,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524750916] [2023-12-19 22:04:30,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:30,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:04:30,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:04:30,798 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) [2023-12-19 22:04:30,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-19 22:04:31,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:31,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 1315 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 22:04:31,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:04:31,052 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-19 22:04:31,052 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:04:31,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524750916] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:04:31,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:04:31,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-19 22:04:31,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387784947] [2023-12-19 22:04:31,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:04:31,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 22:04:31,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:04:31,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 22:04:31,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-19 22:04:31,054 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) [2023-12-19 22:04:31,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:04:31,407 INFO L93 Difference]: Finished difference Result 3136 states and 5136 transitions. [2023-12-19 22:04:31,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:04:31,408 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 [2023-12-19 22:04:31,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:04:31,418 INFO L225 Difference]: With dead ends: 3136 [2023-12-19 22:04:31,418 INFO L226 Difference]: Without dead ends: 1643 [2023-12-19 22:04:31,421 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 [2023-12-19 22:04:31,422 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 [2023-12-19 22:04:31,422 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] [2023-12-19 22:04:31,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2023-12-19 22:04:31,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1643. [2023-12-19 22:04:31,600 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) [2023-12-19 22:04:31,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1643 states to 1643 states and 2677 transitions. [2023-12-19 22:04:31,605 INFO L78 Accepts]: Start accepts. Automaton has 1643 states and 2677 transitions. Word has length 152 [2023-12-19 22:04:31,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:04:31,605 INFO L495 AbstractCegarLoop]: Abstraction has 1643 states and 2677 transitions. [2023-12-19 22:04:31,605 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) [2023-12-19 22:04:31,605 INFO L276 IsEmpty]: Start isEmpty. Operand 1643 states and 2677 transitions. [2023-12-19 22:04:31,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-19 22:04:31,608 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:04:31,608 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] [2023-12-19 22:04:31,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-19 22:04:31,808 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 [2023-12-19 22:04:31,809 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:04:31,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:04:31,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1040874299, now seen corresponding path program 1 times [2023-12-19 22:04:31,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:04:31,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131357014] [2023-12-19 22:04:31,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:31,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:04:31,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:32,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:04:32,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:32,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:32,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:32,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:04:32,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:32,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:04:32,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:32,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:32,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:32,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 22:04:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:32,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:04:32,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:32,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-19 22:04:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:32,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 22:04:32,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:32,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-19 22:04:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:32,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-19 22:04:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:32,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-19 22:04:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:32,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-19 22:04:32,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:32,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-19 22:04:32,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:32,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:32,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:32,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-19 22:04:32,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:32,223 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-19 22:04:32,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:04:32,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131357014] [2023-12-19 22:04:32,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131357014] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:04:32,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909978781] [2023-12-19 22:04:32,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:32,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:04:32,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:04:32,225 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) [2023-12-19 22:04:32,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-19 22:04:32,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:32,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 22:04:32,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:04:32,495 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-19 22:04:32,495 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:04:32,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909978781] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:04:32,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:04:32,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-19 22:04:32,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810132552] [2023-12-19 22:04:32,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:04:32,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 22:04:32,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:04:32,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 22:04:32,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-19 22:04:32,497 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) [2023-12-19 22:04:32,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:04:32,782 INFO L93 Difference]: Finished difference Result 3292 states and 5426 transitions. [2023-12-19 22:04:32,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:04:32,782 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 [2023-12-19 22:04:32,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:04:32,788 INFO L225 Difference]: With dead ends: 3292 [2023-12-19 22:04:32,788 INFO L226 Difference]: Without dead ends: 1721 [2023-12-19 22:04:32,791 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 [2023-12-19 22:04:32,791 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 [2023-12-19 22:04:32,791 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] [2023-12-19 22:04:32,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1721 states. [2023-12-19 22:04:33,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1721 to 1721. [2023-12-19 22:04:33,056 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) [2023-12-19 22:04:33,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1721 states to 1721 states and 2823 transitions. [2023-12-19 22:04:33,062 INFO L78 Accepts]: Start accepts. Automaton has 1721 states and 2823 transitions. Word has length 155 [2023-12-19 22:04:33,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:04:33,063 INFO L495 AbstractCegarLoop]: Abstraction has 1721 states and 2823 transitions. [2023-12-19 22:04:33,063 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) [2023-12-19 22:04:33,063 INFO L276 IsEmpty]: Start isEmpty. Operand 1721 states and 2823 transitions. [2023-12-19 22:04:33,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-19 22:04:33,066 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:04:33,066 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] [2023-12-19 22:04:33,076 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-19 22:04:33,273 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 [2023-12-19 22:04:33,273 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:04:33,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:04:33,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1852738731, now seen corresponding path program 1 times [2023-12-19 22:04:33,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:04:33,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055516637] [2023-12-19 22:04:33,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:33,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:04:33,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:33,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:04:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:33,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:33,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:33,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:04:33,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:33,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:04:33,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:33,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:33,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:33,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 22:04:33,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:33,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:04:33,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:33,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-19 22:04:33,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:33,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 22:04:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:33,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-19 22:04:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:33,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-19 22:04:33,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:33,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-19 22:04:33,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:33,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-19 22:04:33,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:33,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-19 22:04:33,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:33,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:33,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:33,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-19 22:04:33,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:33,661 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-19 22:04:33,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:04:33,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055516637] [2023-12-19 22:04:33,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055516637] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:04:33,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081811413] [2023-12-19 22:04:33,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:33,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:04:33,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:04:33,662 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) [2023-12-19 22:04:33,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-19 22:04:33,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:33,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 1320 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 22:04:33,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:04:33,925 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-12-19 22:04:33,925 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:04:33,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081811413] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:04:33,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:04:33,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-19 22:04:33,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103768494] [2023-12-19 22:04:33,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:04:33,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 22:04:33,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:04:33,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 22:04:33,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-19 22:04:33,928 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) [2023-12-19 22:04:34,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:04:34,249 INFO L93 Difference]: Finished difference Result 3448 states and 5716 transitions. [2023-12-19 22:04:34,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:04:34,250 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 [2023-12-19 22:04:34,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:04:34,255 INFO L225 Difference]: With dead ends: 3448 [2023-12-19 22:04:34,256 INFO L226 Difference]: Without dead ends: 1799 [2023-12-19 22:04:34,260 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 [2023-12-19 22:04:34,260 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 [2023-12-19 22:04:34,260 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] [2023-12-19 22:04:34,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2023-12-19 22:04:34,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1799. [2023-12-19 22:04:34,506 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) [2023-12-19 22:04:34,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 2969 transitions. [2023-12-19 22:04:34,511 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 2969 transitions. Word has length 157 [2023-12-19 22:04:34,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:04:34,511 INFO L495 AbstractCegarLoop]: Abstraction has 1799 states and 2969 transitions. [2023-12-19 22:04:34,511 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) [2023-12-19 22:04:34,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 2969 transitions. [2023-12-19 22:04:34,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-19 22:04:34,515 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:04:34,515 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] [2023-12-19 22:04:34,522 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-19 22:04:34,722 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 [2023-12-19 22:04:34,722 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:04:34,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:04:34,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1828472550, now seen corresponding path program 1 times [2023-12-19 22:04:34,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:04:34,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478230792] [2023-12-19 22:04:34,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:34,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:04:34,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:34,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:04:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:35,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:35,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:35,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:04:35,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:35,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:04:35,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:35,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:35,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:35,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 22:04:35,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:35,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:04:35,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:35,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-19 22:04:35,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:35,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 22:04:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:35,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-19 22:04:35,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:35,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-19 22:04:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:35,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-19 22:04:35,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:35,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-19 22:04:35,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:35,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-19 22:04:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:35,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:35,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-19 22:04:35,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:35,096 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-12-19 22:04:35,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:04:35,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478230792] [2023-12-19 22:04:35,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478230792] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:04:35,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645578305] [2023-12-19 22:04:35,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:35,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:04:35,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:04:35,100 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) [2023-12-19 22:04:35,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-19 22:04:35,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:35,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 1317 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-19 22:04:35,315 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:04:35,341 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-12-19 22:04:35,341 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:04:35,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645578305] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:04:35,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:04:35,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-19 22:04:35,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910775315] [2023-12-19 22:04:35,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:04:35,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 22:04:35,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:04:35,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 22:04:35,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-19 22:04:35,343 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) [2023-12-19 22:04:35,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:04:35,618 INFO L93 Difference]: Finished difference Result 3582 states and 5986 transitions. [2023-12-19 22:04:35,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:04:35,619 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 [2023-12-19 22:04:35,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:04:35,625 INFO L225 Difference]: With dead ends: 3582 [2023-12-19 22:04:35,625 INFO L226 Difference]: Without dead ends: 1855 [2023-12-19 22:04:35,629 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 [2023-12-19 22:04:35,629 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 [2023-12-19 22:04:35,629 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] [2023-12-19 22:04:35,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1855 states. [2023-12-19 22:04:35,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1855 to 1807. [2023-12-19 22:04:35,816 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) [2023-12-19 22:04:35,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1807 states and 2977 transitions. [2023-12-19 22:04:35,824 INFO L78 Accepts]: Start accepts. Automaton has 1807 states and 2977 transitions. Word has length 157 [2023-12-19 22:04:35,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:04:35,824 INFO L495 AbstractCegarLoop]: Abstraction has 1807 states and 2977 transitions. [2023-12-19 22:04:35,824 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) [2023-12-19 22:04:35,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1807 states and 2977 transitions. [2023-12-19 22:04:35,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-19 22:04:35,829 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:04:35,829 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] [2023-12-19 22:04:35,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-19 22:04:36,036 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 [2023-12-19 22:04:36,036 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:04:36,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:04:36,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1014835257, now seen corresponding path program 1 times [2023-12-19 22:04:36,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:04:36,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365355816] [2023-12-19 22:04:36,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:36,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:04:36,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:36,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:04:36,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:36,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:36,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:36,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:04:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:36,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:04:36,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:36,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:36,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:36,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 22:04:36,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:36,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:36,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 22:04:36,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:36,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 22:04:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:36,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-19 22:04:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:36,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 22:04:36,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:36,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-19 22:04:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:36,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-19 22:04:36,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:36,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-19 22:04:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:36,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-19 22:04:36,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:36,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:36,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-19 22:04:36,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:36,423 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-12-19 22:04:36,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:04:36,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365355816] [2023-12-19 22:04:36,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365355816] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:04:36,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56637527] [2023-12-19 22:04:36,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:36,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:04:36,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:04:36,426 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) [2023-12-19 22:04:36,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-19 22:04:36,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:36,650 INFO L262 TraceCheckSpWp]: Trace formula consists of 1337 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-19 22:04:36,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:04:36,937 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2023-12-19 22:04:36,938 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:04:36,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56637527] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:04:36,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:04:36,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 18 [2023-12-19 22:04:36,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564242000] [2023-12-19 22:04:36,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:04:36,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 22:04:36,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:04:36,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 22:04:36,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2023-12-19 22:04:36,942 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) [2023-12-19 22:04:39,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:04:39,390 INFO L93 Difference]: Finished difference Result 5563 states and 9335 transitions. [2023-12-19 22:04:39,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-19 22:04:39,390 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 [2023-12-19 22:04:39,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:04:39,404 INFO L225 Difference]: With dead ends: 5563 [2023-12-19 22:04:39,404 INFO L226 Difference]: Without dead ends: 3488 [2023-12-19 22:04:39,411 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 [2023-12-19 22:04:39,411 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 1846 mSDsluCounter, 1827 mSDsCounter, 0 mSdLazyCounter, 3706 mSolverCounterSat, 442 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s 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, 1.9s IncrementalHoareTripleChecker+Time [2023-12-19 22:04:39,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1943 Valid, 2178 Invalid, 4148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [442 Valid, 3706 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-19 22:04:39,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3488 states. [2023-12-19 22:04:39,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3488 to 3416. [2023-12-19 22:04:39,883 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) [2023-12-19 22:04:39,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3416 states to 3416 states and 5700 transitions. [2023-12-19 22:04:39,899 INFO L78 Accepts]: Start accepts. Automaton has 3416 states and 5700 transitions. Word has length 164 [2023-12-19 22:04:39,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:04:39,899 INFO L495 AbstractCegarLoop]: Abstraction has 3416 states and 5700 transitions. [2023-12-19 22:04:39,899 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) [2023-12-19 22:04:39,900 INFO L276 IsEmpty]: Start isEmpty. Operand 3416 states and 5700 transitions. [2023-12-19 22:04:39,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-19 22:04:39,909 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:04:39,909 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] [2023-12-19 22:04:39,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-19 22:04:40,118 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 [2023-12-19 22:04:40,118 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:04:40,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:04:40,119 INFO L85 PathProgramCache]: Analyzing trace with hash 248236585, now seen corresponding path program 1 times [2023-12-19 22:04:40,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:04:40,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603262308] [2023-12-19 22:04:40,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:40,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:04:40,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:40,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:04:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:40,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:40,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:40,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:04:40,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:40,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 22:04:40,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:40,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:40,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 22:04:40,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:40,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:40,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:40,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 22:04:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:40,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 22:04:40,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:40,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-19 22:04:40,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:40,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 22:04:40,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:40,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-19 22:04:40,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:40,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-19 22:04:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:40,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-19 22:04:40,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:40,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-19 22:04:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:40,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:40,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:40,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-19 22:04:40,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:40,413 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-12-19 22:04:40,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:04:40,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603262308] [2023-12-19 22:04:40,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603262308] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:04:40,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:04:40,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 22:04:40,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63397452] [2023-12-19 22:04:40,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:04:40,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 22:04:40,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:04:40,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 22:04:40,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:04:40,415 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) [2023-12-19 22:04:44,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:04:44,506 INFO L93 Difference]: Finished difference Result 7655 states and 12957 transitions. [2023-12-19 22:04:44,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-19 22:04:44,506 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 [2023-12-19 22:04:44,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:04:44,534 INFO L225 Difference]: With dead ends: 7655 [2023-12-19 22:04:44,534 INFO L226 Difference]: Without dead ends: 4247 [2023-12-19 22:04:44,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2023-12-19 22:04:44,546 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 763 mSDsluCounter, 2194 mSDsCounter, 0 mSdLazyCounter, 3362 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 2606 SdHoareTripleChecker+Invalid, 3505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 3362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-19 22:04:44,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 2606 Invalid, 3505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 3362 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-19 22:04:44,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4247 states. [2023-12-19 22:04:45,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4247 to 3430. [2023-12-19 22:04:45,086 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) [2023-12-19 22:04:45,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3430 states to 3430 states and 5691 transitions. [2023-12-19 22:04:45,102 INFO L78 Accepts]: Start accepts. Automaton has 3430 states and 5691 transitions. Word has length 164 [2023-12-19 22:04:45,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:04:45,102 INFO L495 AbstractCegarLoop]: Abstraction has 3430 states and 5691 transitions. [2023-12-19 22:04:45,103 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) [2023-12-19 22:04:45,103 INFO L276 IsEmpty]: Start isEmpty. Operand 3430 states and 5691 transitions. [2023-12-19 22:04:45,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-12-19 22:04:45,112 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:04:45,113 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] [2023-12-19 22:04:45,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-19 22:04:45,113 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:04:45,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:04:45,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1032020555, now seen corresponding path program 1 times [2023-12-19 22:04:45,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:04:45,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793045667] [2023-12-19 22:04:45,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:45,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:04:45,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:45,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:04:45,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:45,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:45,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:45,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:04:45,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:45,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-19 22:04:45,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:45,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:45,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:45,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 22:04:45,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:45,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:45,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 22:04:45,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:45,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-19 22:04:45,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:45,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-19 22:04:45,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:45,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 22:04:45,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:45,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-19 22:04:45,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:45,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-19 22:04:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:45,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-19 22:04:45,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:45,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-19 22:04:45,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:45,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:45,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-19 22:04:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:45,415 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-12-19 22:04:45,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:04:45,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793045667] [2023-12-19 22:04:45,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793045667] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:04:45,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 22:04:45,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 22:04:45,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086213149] [2023-12-19 22:04:45,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:04:45,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 22:04:45,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:04:45,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 22:04:45,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-19 22:04:45,418 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) [2023-12-19 22:04:49,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:04:49,422 INFO L93 Difference]: Finished difference Result 7334 states and 12480 transitions. [2023-12-19 22:04:49,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 22:04:49,422 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 [2023-12-19 22:04:49,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:04:49,438 INFO L225 Difference]: With dead ends: 7334 [2023-12-19 22:04:49,438 INFO L226 Difference]: Without dead ends: 3802 [2023-12-19 22:04:49,449 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 [2023-12-19 22:04:49,449 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 1351 mSDsluCounter, 2249 mSDsCounter, 0 mSdLazyCounter, 3289 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s 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, 2.4s IncrementalHoareTripleChecker+Time [2023-12-19 22:04:49,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1455 Valid, 2693 Invalid, 3592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 3289 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-19 22:04:49,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3802 states. [2023-12-19 22:04:49,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3802 to 3050. [2023-12-19 22:04:49,863 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) [2023-12-19 22:04:49,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3050 states to 3050 states and 5131 transitions. [2023-12-19 22:04:49,875 INFO L78 Accepts]: Start accepts. Automaton has 3050 states and 5131 transitions. Word has length 170 [2023-12-19 22:04:49,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:04:49,875 INFO L495 AbstractCegarLoop]: Abstraction has 3050 states and 5131 transitions. [2023-12-19 22:04:49,875 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) [2023-12-19 22:04:49,875 INFO L276 IsEmpty]: Start isEmpty. Operand 3050 states and 5131 transitions. [2023-12-19 22:04:49,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2023-12-19 22:04:49,892 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:04:49,892 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] [2023-12-19 22:04:49,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-19 22:04:49,892 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:04:49,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:04:49,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1216103903, now seen corresponding path program 1 times [2023-12-19 22:04:49,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:04:49,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788180599] [2023-12-19 22:04:49,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:49,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:04:49,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:04:50,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:50,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:04:50,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:04:50,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:04:50,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 22:04:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:50,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:04:50,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-19 22:04:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:04:50,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-19 22:04:50,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:50,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-19 22:04:50,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:50,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:50,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:04:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 22:04:50,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:50,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:50,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:04:50,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-19 22:04:50,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:04:50,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-19 22:04:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-19 22:04:50,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:50,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:50,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:04:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:50,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-19 22:04:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:50,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:04:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 22:04:50,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:04:50,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 22:04:50,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2023-12-19 22:04:50,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:50,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:04:50,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-12-19 22:04:50,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-12-19 22:04:50,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:50,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2023-12-19 22:04:50,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2023-12-19 22:04:50,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2023-12-19 22:04:50,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2023-12-19 22:04:50,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2023-12-19 22:04:50,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:50,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2023-12-19 22:04:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:51,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2023-12-19 22:04:51,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:51,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2023-12-19 22:04:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:51,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:04:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:51,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2023-12-19 22:04:51,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:51,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 36 proven. 116 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2023-12-19 22:04:51,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:04:51,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788180599] [2023-12-19 22:04:51,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788180599] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:04:51,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67852874] [2023-12-19 22:04:51,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:04:51,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:04:51,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:04:51,023 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) [2023-12-19 22:04:51,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-19 22:04:51,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:04:51,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 3148 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-19 22:04:51,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:04:51,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 345 proven. 48 refuted. 0 times theorem prover too weak. 627 trivial. 0 not checked. [2023-12-19 22:04:51,805 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 22:04:52,685 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 53 proven. 97 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2023-12-19 22:04:52,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67852874] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 22:04:52,685 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 22:04:52,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 11, 14] total 34 [2023-12-19 22:04:52,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042486029] [2023-12-19 22:04:52,686 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 22:04:52,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-19 22:04:52,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:04:52,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-19 22:04:52,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=997, Unknown=0, NotChecked=0, Total=1122 [2023-12-19 22:04:52,688 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) [2023-12-19 22:07:17,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:07:17,830 INFO L93 Difference]: Finished difference Result 31211 states and 58607 transitions. [2023-12-19 22:07:17,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 488 states. [2023-12-19 22:07:17,831 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 [2023-12-19 22:07:17,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:07:18,037 INFO L225 Difference]: With dead ends: 31211 [2023-12-19 22:07:18,038 INFO L226 Difference]: Without dead ends: 28122 [2023-12-19 22:07:18,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1702 GetRequests, 1182 SyntacticMatches, 4 SemanticMatches, 516 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123680 ImplicationChecksByTransitivity, 71.6s TimeCoverageRelationStatistics Valid=22128, Invalid=245678, Unknown=0, NotChecked=0, Total=267806 [2023-12-19 22:07:18,136 INFO L413 NwaCegarLoop]: 2226 mSDtfsCounter, 49171 mSDsluCounter, 22636 mSDsCounter, 0 mSdLazyCounter, 89229 mSolverCounterSat, 22532 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49171 SdHoareTripleChecker+Valid, 24862 SdHoareTripleChecker+Invalid, 111761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.7s SdHoareTripleChecker+Time, 22532 IncrementalHoareTripleChecker+Valid, 89229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.8s IncrementalHoareTripleChecker+Time [2023-12-19 22:07:18,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49171 Valid, 24862 Invalid, 111761 Unknown, 0 Unchecked, 0.7s Time], IncrementalHoareTripleChecker [22532 Valid, 89229 Invalid, 0 Unknown, 0 Unchecked, 63.8s Time] [2023-12-19 22:07:18,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28122 states. [2023-12-19 22:07:21,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28122 to 15961. [2023-12-19 22:07:21,102 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) [2023-12-19 22:07:21,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15961 states to 15961 states and 26537 transitions. [2023-12-19 22:07:21,172 INFO L78 Accepts]: Start accepts. Automaton has 15961 states and 26537 transitions. Word has length 437 [2023-12-19 22:07:21,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:07:21,173 INFO L495 AbstractCegarLoop]: Abstraction has 15961 states and 26537 transitions. [2023-12-19 22:07:21,173 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) [2023-12-19 22:07:21,173 INFO L276 IsEmpty]: Start isEmpty. Operand 15961 states and 26537 transitions. [2023-12-19 22:07:21,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2023-12-19 22:07:21,223 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:07:21,223 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, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:07:21,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-19 22:07:21,433 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 [2023-12-19 22:07:21,434 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:07:21,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:07:21,434 INFO L85 PathProgramCache]: Analyzing trace with hash -726608085, now seen corresponding path program 1 times [2023-12-19 22:07:21,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:07:21,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013620334] [2023-12-19 22:07:21,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:07:21,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:07:21,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:21,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:07:21,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:21,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:21,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:07:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:07:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:22,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:22,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:07:22,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:22,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-19 22:07:22,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:22,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:07:22,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 22:07:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:07:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 22:07:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-19 22:07:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:22,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:07:22,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-19 22:07:22,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:22,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-19 22:07:22,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:07:22,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 22:07:22,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:22,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-12-19 22:07:22,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:22,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:22,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:07:22,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:22,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-19 22:07:22,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:22,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:22,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:07:22,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 22:07:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:07:22,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 22:07:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-12-19 22:07:22,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:07:22,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2023-12-19 22:07:22,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2023-12-19 22:07:22,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:22,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2023-12-19 22:07:22,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2023-12-19 22:07:22,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2023-12-19 22:07:22,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2023-12-19 22:07:22,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2023-12-19 22:07:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2023-12-19 22:07:22,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2023-12-19 22:07:22,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2023-12-19 22:07:22,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2023-12-19 22:07:22,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1137 backedges. 32 proven. 41 refuted. 0 times theorem prover too weak. 1064 trivial. 0 not checked. [2023-12-19 22:07:22,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:07:22,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013620334] [2023-12-19 22:07:22,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013620334] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:07:22,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47076663] [2023-12-19 22:07:22,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:07:22,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:07:22,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:07:22,425 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) [2023-12-19 22:07:22,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-19 22:07:22,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:22,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 3192 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-19 22:07:23,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:07:23,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1137 backedges. 238 proven. 0 refuted. 0 times theorem prover too weak. 899 trivial. 0 not checked. [2023-12-19 22:07:23,051 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:07:23,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47076663] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:07:23,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:07:23,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 16 [2023-12-19 22:07:23,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825229120] [2023-12-19 22:07:23,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:07:23,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 22:07:23,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:07:23,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 22:07:23,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-12-19 22:07:23,053 INFO L87 Difference]: Start difference. First operand 15961 states and 26537 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-19 22:07:26,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:07:26,604 INFO L93 Difference]: Finished difference Result 34172 states and 57219 transitions. [2023-12-19 22:07:26,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 22:07:26,605 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 450 [2023-12-19 22:07:26,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:07:26,682 INFO L225 Difference]: With dead ends: 34172 [2023-12-19 22:07:26,682 INFO L226 Difference]: Without dead ends: 18277 [2023-12-19 22:07:26,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 578 GetRequests, 563 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2023-12-19 22:07:26,730 INFO L413 NwaCegarLoop]: 794 mSDtfsCounter, 159 mSDsluCounter, 3122 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 3916 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 [2023-12-19 22:07:26,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 3916 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 22:07:26,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18277 states. [2023-12-19 22:07:29,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18277 to 16103. [2023-12-19 22:07:29,201 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) [2023-12-19 22:07:29,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16103 states to 16103 states and 26719 transitions. [2023-12-19 22:07:29,254 INFO L78 Accepts]: Start accepts. Automaton has 16103 states and 26719 transitions. Word has length 450 [2023-12-19 22:07:29,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:07:29,254 INFO L495 AbstractCegarLoop]: Abstraction has 16103 states and 26719 transitions. [2023-12-19 22:07:29,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-19 22:07:29,254 INFO L276 IsEmpty]: Start isEmpty. Operand 16103 states and 26719 transitions. [2023-12-19 22:07:29,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2023-12-19 22:07:29,309 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:07:29,309 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] [2023-12-19 22:07:29,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-12-19 22:07:29,520 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 [2023-12-19 22:07:29,520 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:07:29,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:07:29,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1728496032, now seen corresponding path program 1 times [2023-12-19 22:07:29,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:07:29,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642987275] [2023-12-19 22:07:29,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:07:29,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:07:29,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:29,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:07:29,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:29,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:29,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:29,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:07:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:07:30,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:30,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:07:30,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:30,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:07:30,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:07:30,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:07:30,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:07:30,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:07:30,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:07:30,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 22:07:30,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-19 22:07:30,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-19 22:07:30,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:07:30,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 22:07:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:30,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:07:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 22:07:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:07:30,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 22:07:30,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-19 22:07:30,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:30,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:30,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:07:30,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:30,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 22:07:30,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:30,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 22:07:30,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 22:07:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:07:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 22:07:30,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2023-12-19 22:07:30,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:30,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:07:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2023-12-19 22:07:30,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:30,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2023-12-19 22:07:30,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:30,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2023-12-19 22:07:30,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2023-12-19 22:07:30,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2023-12-19 22:07:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2023-12-19 22:07:30,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2023-12-19 22:07:30,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2023-12-19 22:07:30,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2023-12-19 22:07:30,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2023-12-19 22:07:30,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:07:30,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2023-12-19 22:07:30,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:30,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1277 backedges. 73 proven. 96 refuted. 0 times theorem prover too weak. 1108 trivial. 0 not checked. [2023-12-19 22:07:30,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:07:30,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642987275] [2023-12-19 22:07:30,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642987275] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:07:30,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264023420] [2023-12-19 22:07:30,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:07:30,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:07:30,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:07:30,494 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) [2023-12-19 22:07:30,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-19 22:07:31,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:07:31,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 3358 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 22:07:31,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:07:31,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1277 backedges. 788 proven. 3 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2023-12-19 22:07:31,161 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 22:07:31,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1277 backedges. 121 proven. 19 refuted. 0 times theorem prover too weak. 1137 trivial. 0 not checked. [2023-12-19 22:07:31,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264023420] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 22:07:31,554 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 22:07:31,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 6] total 21 [2023-12-19 22:07:31,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763711118] [2023-12-19 22:07:31,555 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 22:07:31,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-19 22:07:31,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:07:31,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-19 22:07:31,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=355, Unknown=0, NotChecked=0, Total=420 [2023-12-19 22:07:31,557 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) [2023-12-19 22:08:03,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:08:03,881 INFO L93 Difference]: Finished difference Result 53317 states and 94637 transitions. [2023-12-19 22:08:03,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2023-12-19 22:08:03,882 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 [2023-12-19 22:08:03,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:08:04,059 INFO L225 Difference]: With dead ends: 53317 [2023-12-19 22:08:04,059 INFO L226 Difference]: Without dead ends: 35797 [2023-12-19 22:08:04,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1240 GetRequests, 1159 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2282 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=1513, Invalid=5293, Unknown=0, NotChecked=0, Total=6806 [2023-12-19 22:08:04,135 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 19365 mSDsluCounter, 3697 mSDsCounter, 0 mSdLazyCounter, 11363 mSolverCounterSat, 8510 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19365 SdHoareTripleChecker+Valid, 4296 SdHoareTripleChecker+Invalid, 19873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8510 IncrementalHoareTripleChecker+Valid, 11363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2023-12-19 22:08:04,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19365 Valid, 4296 Invalid, 19873 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8510 Valid, 11363 Invalid, 0 Unknown, 0 Unchecked, 14.3s Time] [2023-12-19 22:08:04,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35797 states. [2023-12-19 22:08:08,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35797 to 25099. [2023-12-19 22:08:08,497 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) [2023-12-19 22:08:08,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25099 states to 25099 states and 41246 transitions. [2023-12-19 22:08:08,581 INFO L78 Accepts]: Start accepts. Automaton has 25099 states and 41246 transitions. Word has length 505 [2023-12-19 22:08:08,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:08:08,582 INFO L495 AbstractCegarLoop]: Abstraction has 25099 states and 41246 transitions. [2023-12-19 22:08:08,582 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) [2023-12-19 22:08:08,582 INFO L276 IsEmpty]: Start isEmpty. Operand 25099 states and 41246 transitions. [2023-12-19 22:08:08,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2023-12-19 22:08:08,628 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:08:08,629 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:08:08,638 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-12-19 22:08:08,835 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 [2023-12-19 22:08:08,836 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:08:08,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:08:08,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1266058087, now seen corresponding path program 1 times [2023-12-19 22:08:08,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:08:08,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016293614] [2023-12-19 22:08:08,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:08:08,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:08:08,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:08:09,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:09,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:08:09,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:08:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:09,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:09,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:08:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:08:09,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:08:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:08:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:08:09,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:08:09,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:08:09,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-19 22:08:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-19 22:08:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:09,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-19 22:08:09,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:09,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:09,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:08:09,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:09,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 22:08:09,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:09,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:09,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:08:09,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 22:08:09,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:08:09,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 22:08:09,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:09,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-19 22:08:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:09,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:09,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:08:09,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:09,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 22:08:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:09,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:09,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 22:08:09,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 22:08:09,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:08:09,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 22:08:09,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:09,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2023-12-19 22:08:09,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:09,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:08:09,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2023-12-19 22:08:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:09,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2023-12-19 22:08:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2023-12-19 22:08:09,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:09,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2023-12-19 22:08:09,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2023-12-19 22:08:09,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2023-12-19 22:08:09,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2023-12-19 22:08:09,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2023-12-19 22:08:09,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2023-12-19 22:08:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 485 [2023-12-19 22:08:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2023-12-19 22:08:09,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:09,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 509 [2023-12-19 22:08:09,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:09,701 INFO L134 CoverageAnalysis]: Checked inductivity of 1376 backedges. 61 proven. 69 refuted. 0 times theorem prover too weak. 1246 trivial. 0 not checked. [2023-12-19 22:08:09,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:08:09,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016293614] [2023-12-19 22:08:09,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016293614] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:08:09,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043234187] [2023-12-19 22:08:09,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:08:09,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:08:09,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:08:09,705 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) [2023-12-19 22:08:09,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-19 22:08:10,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:10,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 3384 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 22:08:10,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:08:10,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1376 backedges. 806 proven. 0 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2023-12-19 22:08:10,361 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 22:08:10,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043234187] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 22:08:10,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 22:08:10,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [14] total 16 [2023-12-19 22:08:10,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048382408] [2023-12-19 22:08:10,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 22:08:10,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 22:08:10,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:08:10,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 22:08:10,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-19 22:08:10,364 INFO L87 Difference]: Start difference. First operand 25099 states and 41246 transitions. Second operand has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 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) [2023-12-19 22:08:18,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:08:18,096 INFO L93 Difference]: Finished difference Result 67316 states and 111153 transitions. [2023-12-19 22:08:18,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 22:08:18,096 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 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 [2023-12-19 22:08:18,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:08:18,303 INFO L225 Difference]: With dead ends: 67316 [2023-12-19 22:08:18,303 INFO L226 Difference]: Without dead ends: 46494 [2023-12-19 22:08:18,403 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 [2023-12-19 22:08:18,403 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, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 22:08:18,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 2047 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 22:08:18,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46494 states. [2023-12-19 22:08:26,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46494 to 46205. [2023-12-19 22:08:26,151 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) [2023-12-19 22:08:26,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46205 states to 46205 states and 76745 transitions. [2023-12-19 22:08:26,355 INFO L78 Accepts]: Start accepts. Automaton has 46205 states and 76745 transitions. Word has length 516 [2023-12-19 22:08:26,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:08:26,355 INFO L495 AbstractCegarLoop]: Abstraction has 46205 states and 76745 transitions. [2023-12-19 22:08:26,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 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) [2023-12-19 22:08:26,356 INFO L276 IsEmpty]: Start isEmpty. Operand 46205 states and 76745 transitions. [2023-12-19 22:08:26,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 581 [2023-12-19 22:08:26,450 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:08:26,451 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 20, 16, 12, 12, 12, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:08:26,459 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-12-19 22:08:26,652 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 [2023-12-19 22:08:26,653 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:08:26,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:08:26,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1952414231, now seen corresponding path program 1 times [2023-12-19 22:08:26,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:08:26,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034258628] [2023-12-19 22:08:26,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:08:26,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:08:26,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:08:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:08:27,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:08:27,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:08:27,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:08:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:08:27,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:08:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:08:27,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:08:27,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:08:27,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-19 22:08:27,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-19 22:08:27,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:27,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-19 22:08:27,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:27,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:27,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:08:27,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:27,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:08:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:08:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:08:27,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:08:27,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:08:27,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:08:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-19 22:08:27,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-19 22:08:27,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-12-19 22:08:27,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:27,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:27,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:08:27,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-19 22:08:27,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-19 22:08:27,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 22:08:27,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 22:08:27,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 22:08:27,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 22:08:27,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-19 22:08:27,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-19 22:08:27,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2023-12-19 22:08:27,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:27,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:08:27,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2023-12-19 22:08:27,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:27,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2023-12-19 22:08:27,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2023-12-19 22:08:27,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2023-12-19 22:08:27,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2023-12-19 22:08:27,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2023-12-19 22:08:27,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 513 [2023-12-19 22:08:27,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2023-12-19 22:08:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 536 [2023-12-19 22:08:27,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 549 [2023-12-19 22:08:27,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 558 [2023-12-19 22:08:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:08:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2023-12-19 22:08:27,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:27,783 INFO L134 CoverageAnalysis]: Checked inductivity of 2598 backedges. 119 proven. 123 refuted. 0 times theorem prover too weak. 2356 trivial. 0 not checked. [2023-12-19 22:08:27,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:08:27,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034258628] [2023-12-19 22:08:27,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034258628] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:08:27,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201453415] [2023-12-19 22:08:27,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:08:27,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:08:27,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:08:27,784 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) [2023-12-19 22:08:27,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-19 22:08:28,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:08:28,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 3542 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-19 22:08:28,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:08:29,097 INFO L134 CoverageAnalysis]: Checked inductivity of 2598 backedges. 1062 proven. 12 refuted. 0 times theorem prover too weak. 1524 trivial. 0 not checked. [2023-12-19 22:08:29,097 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 22:08:29,728 INFO L134 CoverageAnalysis]: Checked inductivity of 2598 backedges. 117 proven. 1 refuted. 0 times theorem prover too weak. 2480 trivial. 0 not checked. [2023-12-19 22:08:29,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201453415] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 22:08:29,728 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 22:08:29,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 7] total 24 [2023-12-19 22:08:29,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551669956] [2023-12-19 22:08:29,729 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 22:08:29,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-19 22:08:29,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:08:29,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-19 22:08:29,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2023-12-19 22:08:29,731 INFO L87 Difference]: Start difference. First operand 46205 states and 76745 transitions. Second operand has 24 states, 22 states have (on average 17.90909090909091) internal successors, (394), 18 states have internal predecessors, (394), 10 states have call successors, (106), 10 states have call predecessors, (106), 13 states have return successors, (99), 14 states have call predecessors, (99), 10 states have call successors, (99) [2023-12-19 22:09:17,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 22:09:17,724 INFO L93 Difference]: Finished difference Result 151896 states and 280577 transitions. [2023-12-19 22:09:17,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-12-19 22:09:17,725 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 17.90909090909091) internal successors, (394), 18 states have internal predecessors, (394), 10 states have call successors, (106), 10 states have call predecessors, (106), 13 states have return successors, (99), 14 states have call predecessors, (99), 10 states have call successors, (99) Word has length 580 [2023-12-19 22:09:17,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 22:09:18,876 INFO L225 Difference]: With dead ends: 151896 [2023-12-19 22:09:18,877 INFO L226 Difference]: Without dead ends: 112162 [2023-12-19 22:09:19,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1353 GetRequests, 1291 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1121 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=970, Invalid=3062, Unknown=0, NotChecked=0, Total=4032 [2023-12-19 22:09:19,217 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 9072 mSDsluCounter, 1898 mSDsCounter, 0 mSdLazyCounter, 10286 mSolverCounterSat, 4099 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9072 SdHoareTripleChecker+Valid, 2142 SdHoareTripleChecker+Invalid, 14385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4099 IncrementalHoareTripleChecker+Valid, 10286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2023-12-19 22:09:19,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9072 Valid, 2142 Invalid, 14385 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4099 Valid, 10286 Invalid, 0 Unknown, 0 Unchecked, 10.9s Time] [2023-12-19 22:09:19,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112162 states. [2023-12-19 22:09:33,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112162 to 75296. [2023-12-19 22:09:33,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75296 states, 61033 states have (on average 1.6562679206331001) internal successors, (101087), 62861 states have internal predecessors, (101087), 9206 states have call successors, (9206), 4227 states have call predecessors, (9206), 5056 states have return successors, (14920), 9635 states have call predecessors, (14920), 9163 states have call successors, (14920) [2023-12-19 22:09:34,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75296 states to 75296 states and 125213 transitions. [2023-12-19 22:09:34,472 INFO L78 Accepts]: Start accepts. Automaton has 75296 states and 125213 transitions. Word has length 580 [2023-12-19 22:09:34,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 22:09:34,473 INFO L495 AbstractCegarLoop]: Abstraction has 75296 states and 125213 transitions. [2023-12-19 22:09:34,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 17.90909090909091) internal successors, (394), 18 states have internal predecessors, (394), 10 states have call successors, (106), 10 states have call predecessors, (106), 13 states have return successors, (99), 14 states have call predecessors, (99), 10 states have call successors, (99) [2023-12-19 22:09:34,473 INFO L276 IsEmpty]: Start isEmpty. Operand 75296 states and 125213 transitions. [2023-12-19 22:09:34,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2023-12-19 22:09:34,746 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 22:09:34,746 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 9, 9, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 22:09:34,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-12-19 22:09:34,946 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 [2023-12-19 22:09:34,947 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 22:09:34,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 22:09:34,947 INFO L85 PathProgramCache]: Analyzing trace with hash 401963448, now seen corresponding path program 1 times [2023-12-19 22:09:34,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 22:09:34,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169975714] [2023-12-19 22:09:34,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:09:34,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 22:09:34,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:09:35,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:35,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 22:09:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 22:09:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:09:35,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:35,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 22:09:35,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-19 22:09:35,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 22:09:35,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 22:09:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-19 22:09:35,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-19 22:09:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-19 22:09:35,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-19 22:09:35,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:35,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-19 22:09:35,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:35,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:35,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:09:35,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:35,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 22:09:35,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:35,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:09:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 22:09:35,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:09:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 22:09:35,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:35,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-19 22:09:35,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:35,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:35,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:09:35,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 22:09:35,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:35,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:35,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 22:09:35,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 22:09:35,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 22:09:35,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 22:09:35,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:35,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2023-12-19 22:09:35,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:35,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 22:09:35,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2023-12-19 22:09:35,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:35,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2023-12-19 22:09:35,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:35,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2023-12-19 22:09:35,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2023-12-19 22:09:35,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2023-12-19 22:09:35,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2023-12-19 22:09:35,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2023-12-19 22:09:35,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2023-12-19 22:09:35,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2023-12-19 22:09:35,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2023-12-19 22:09:35,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 22:09:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2023-12-19 22:09:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:35,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1361 backedges. 65 proven. 36 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2023-12-19 22:09:35,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 22:09:35,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169975714] [2023-12-19 22:09:35,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169975714] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 22:09:35,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060269169] [2023-12-19 22:09:35,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 22:09:35,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 22:09:35,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 22:09:35,656 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) [2023-12-19 22:09:35,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-19 22:09:36,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 22:09:36,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 3357 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-19 22:09:36,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 22:09:36,326 INFO L134 CoverageAnalysis]: Checked inductivity of 1361 backedges. 777 proven. 53 refuted. 0 times theorem prover too weak. 531 trivial. 0 not checked. [2023-12-19 22:09:36,326 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 22:09:36,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1361 backedges. 102 proven. 9 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2023-12-19 22:09:36,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1060269169] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 22:09:36,749 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 22:09:36,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 7] total 24 [2023-12-19 22:09:36,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626317050] [2023-12-19 22:09:36,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 22:09:36,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-19 22:09:36,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 22:09:36,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-19 22:09:36,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2023-12-19 22:09:36,753 INFO L87 Difference]: Start difference. First operand 75296 states and 125213 transitions. Second operand has 24 states, 23 states have (on average 14.956521739130435) internal successors, (344), 19 states have internal predecessors, (344), 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)