/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/elevator_spec14_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 08:39:17,203 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 08:39:17,264 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 08:39:17,267 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 08:39:17,267 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 08:39:17,293 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 08:39:17,293 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 08:39:17,293 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 08:39:17,294 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 08:39:17,294 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 08:39:17,294 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 08:39:17,294 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 08:39:17,295 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 08:39:17,295 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 08:39:17,295 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 08:39:17,295 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 08:39:17,296 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 08:39:17,296 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 08:39:17,296 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 08:39:17,296 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 08:39:17,297 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 08:39:17,297 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 08:39:17,297 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 08:39:17,297 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 08:39:17,298 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 08:39:17,298 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 08:39:17,298 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 08:39:17,298 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 08:39:17,298 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 08:39:17,298 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 08:39:17,299 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 08:39:17,299 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 08:39:17,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 08:39:17,299 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 08:39:17,299 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 08:39:17,300 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 08:39:17,300 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 08:39:17,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 08:39:17,300 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 08:39:17,300 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 08:39:17,300 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 08:39:17,300 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 08:39:17,300 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 08:39:17,301 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 08:39:17,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 08:39:17,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 08:39:17,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 08:39:17,462 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 08:39:17,463 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 08:39:17,464 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product24.cil.c [2023-12-21 08:39:18,523 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 08:39:18,762 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 08:39:18,764 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product24.cil.c [2023-12-21 08:39:18,782 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2e560077/efa45b8fd6e547a2905ea6e9f4a0451a/FLAG2c1aae31b [2023-12-21 08:39:18,791 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2e560077/efa45b8fd6e547a2905ea6e9f4a0451a [2023-12-21 08:39:18,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 08:39:18,793 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 08:39:18,794 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 08:39:18,794 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 08:39:18,797 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 08:39:18,797 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 08:39:18" (1/1) ... [2023-12-21 08:39:18,798 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@544a77af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:18, skipping insertion in model container [2023-12-21 08:39:18,798 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 08:39:18" (1/1) ... [2023-12-21 08:39:18,841 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 08:39:19,225 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_product24.cil.c[71679,71692] [2023-12-21 08:39:19,228 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 08:39:19,244 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 08:39:19,251 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-12-21 08:39:19,253 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [408] [2023-12-21 08:39:19,253 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [422] [2023-12-21 08:39:19,254 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [467] [2023-12-21 08:39:19,254 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2112] [2023-12-21 08:39:19,254 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2773] [2023-12-21 08:39:19,255 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3139] [2023-12-21 08:39:19,255 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3174] [2023-12-21 08:39:19,255 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3292] [2023-12-21 08:39:19,255 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3383] [2023-12-21 08:39:19,366 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_product24.cil.c[71679,71692] [2023-12-21 08:39:19,367 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 08:39:19,419 INFO L206 MainTranslator]: Completed translation [2023-12-21 08:39:19,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:19 WrapperNode [2023-12-21 08:39:19,419 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 08:39:19,420 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 08:39:19,420 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 08:39:19,421 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 08:39:19,439 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:19" (1/1) ... [2023-12-21 08:39:19,459 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:19" (1/1) ... [2023-12-21 08:39:19,501 INFO L138 Inliner]: procedures = 95, calls = 346, calls flagged for inlining = 27, calls inlined = 23, statements flattened = 862 [2023-12-21 08:39:19,502 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 08:39:19,502 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 08:39:19,502 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 08:39:19,503 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 08:39:19,513 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:19" (1/1) ... [2023-12-21 08:39:19,513 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:19" (1/1) ... [2023-12-21 08:39:19,518 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:19" (1/1) ... [2023-12-21 08:39:19,540 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-21 08:39:19,540 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:19" (1/1) ... [2023-12-21 08:39:19,540 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:19" (1/1) ... [2023-12-21 08:39:19,563 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:19" (1/1) ... [2023-12-21 08:39:19,572 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:19" (1/1) ... [2023-12-21 08:39:19,576 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:19" (1/1) ... [2023-12-21 08:39:19,580 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:19" (1/1) ... [2023-12-21 08:39:19,586 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 08:39:19,587 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 08:39:19,587 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 08:39:19,587 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 08:39:19,588 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:19" (1/1) ... [2023-12-21 08:39:19,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 08:39:19,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:19,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-21 08:39:19,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-21 08:39:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 08:39:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-12-21 08:39:19,664 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-12-21 08:39:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-21 08:39:19,664 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-21 08:39:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-21 08:39:19,664 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-21 08:39:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-21 08:39:19,664 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-21 08:39:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-21 08:39:19,665 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-21 08:39:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-21 08:39:19,665 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-21 08:39:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-12-21 08:39:19,665 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-12-21 08:39:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-21 08:39:19,665 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-21 08:39:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-21 08:39:19,665 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-21 08:39:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-21 08:39:19,666 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-21 08:39:19,666 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-12-21 08:39:19,666 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-12-21 08:39:19,666 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-21 08:39:19,666 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-21 08:39:19,666 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-21 08:39:19,666 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-21 08:39:19,666 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-21 08:39:19,666 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-21 08:39:19,666 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-21 08:39:19,666 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-21 08:39:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-21 08:39:19,667 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-21 08:39:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-21 08:39:19,667 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-21 08:39:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-21 08:39:19,667 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-21 08:39:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-21 08:39:19,667 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-21 08:39:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-21 08:39:19,667 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-21 08:39:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 08:39:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 08:39:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-21 08:39:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-21 08:39:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-21 08:39:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-21 08:39:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-21 08:39:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-21 08:39:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-21 08:39:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-21 08:39:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-21 08:39:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-21 08:39:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-21 08:39:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-21 08:39:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-21 08:39:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-21 08:39:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-12-21 08:39:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-12-21 08:39:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-12-21 08:39:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-12-21 08:39:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-12-21 08:39:19,669 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-12-21 08:39:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-21 08:39:19,669 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-21 08:39:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-21 08:39:19,670 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-21 08:39:19,670 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-21 08:39:19,670 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-21 08:39:19,670 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2023-12-21 08:39:19,670 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2023-12-21 08:39:19,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 08:39:19,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 08:39:19,670 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-21 08:39:19,670 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-21 08:39:19,670 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2023-12-21 08:39:19,671 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2023-12-21 08:39:19,879 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 08:39:19,882 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 08:39:20,639 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 08:39:20,703 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 08:39:20,704 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 08:39:20,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 08:39:20 BoogieIcfgContainer [2023-12-21 08:39:20,704 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 08:39:20,706 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 08:39:20,706 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 08:39:20,708 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 08:39:20,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 08:39:18" (1/3) ... [2023-12-21 08:39:20,709 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a9e169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 08:39:20, skipping insertion in model container [2023-12-21 08:39:20,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:19" (2/3) ... [2023-12-21 08:39:20,710 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a9e169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 08:39:20, skipping insertion in model container [2023-12-21 08:39:20,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 08:39:20" (3/3) ... [2023-12-21 08:39:20,711 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product24.cil.c [2023-12-21 08:39:20,723 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 08:39:20,724 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 08:39:20,783 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 08:39:20,789 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;@70ddfbba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 08:39:20,790 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 08:39:20,797 INFO L276 IsEmpty]: Start isEmpty. Operand has 550 states, 418 states have (on average 1.69377990430622) internal successors, (708), 436 states have internal predecessors, (708), 103 states have call successors, (103), 27 states have call predecessors, (103), 27 states have return successors, (103), 100 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-21 08:39:20,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-21 08:39:20,816 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:20,817 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:20,817 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:20,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:20,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1029410274, now seen corresponding path program 1 times [2023-12-21 08:39:20,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:20,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585843375] [2023-12-21 08:39:20,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:20,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:20,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:21,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:21,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:21,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:21,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:21,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:39:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:21,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-21 08:39:21,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:21,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 08:39:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:21,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:21,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:21,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:39:21,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:21,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 08:39:21,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:21,482 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:39:21,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:21,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585843375] [2023-12-21 08:39:21,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585843375] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:21,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:21,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 08:39:21,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718396451] [2023-12-21 08:39:21,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:21,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:39:21,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:21,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:39:21,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 08:39:21,518 INFO L87 Difference]: Start difference. First operand has 550 states, 418 states have (on average 1.69377990430622) internal successors, (708), 436 states have internal predecessors, (708), 103 states have call successors, (103), 27 states have call predecessors, (103), 27 states have return successors, (103), 100 states have call predecessors, (103), 103 states have call successors, (103) Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:24,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:24,250 INFO L93 Difference]: Finished difference Result 1216 states and 2045 transitions. [2023-12-21 08:39:24,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:39:24,253 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 52 [2023-12-21 08:39:24,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:24,280 INFO L225 Difference]: With dead ends: 1216 [2023-12-21 08:39:24,280 INFO L226 Difference]: Without dead ends: 664 [2023-12-21 08:39:24,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-21 08:39:24,290 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 668 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 1743 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 1858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:24,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [751 Valid, 1470 Invalid, 1858 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [115 Valid, 1743 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-21 08:39:24,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2023-12-21 08:39:24,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 549. [2023-12-21 08:39:24,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 418 states have (on average 1.6770334928229664) internal successors, (701), 435 states have internal predecessors, (701), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-21 08:39:24,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 906 transitions. [2023-12-21 08:39:24,421 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 906 transitions. Word has length 52 [2023-12-21 08:39:24,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:24,421 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 906 transitions. [2023-12-21 08:39:24,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:24,421 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 906 transitions. [2023-12-21 08:39:24,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-21 08:39:24,427 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:24,427 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:24,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 08:39:24,427 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:24,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:24,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1908114418, now seen corresponding path program 1 times [2023-12-21 08:39:24,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:24,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868871506] [2023-12-21 08:39:24,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:24,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:24,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:24,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:24,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:24,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:24,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 08:39:24,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:24,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 08:39:24,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:24,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-21 08:39:24,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:24,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:24,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:24,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 08:39:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:24,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:39:24,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:24,702 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:39:24,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:24,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868871506] [2023-12-21 08:39:24,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868871506] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:24,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:24,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 08:39:24,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819251502] [2023-12-21 08:39:24,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:24,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:39:24,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:24,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:39:24,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 08:39:24,708 INFO L87 Difference]: Start difference. First operand 549 states and 906 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:27,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:27,025 INFO L93 Difference]: Finished difference Result 1201 states and 1996 transitions. [2023-12-21 08:39:27,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:39:27,026 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 53 [2023-12-21 08:39:27,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:27,032 INFO L225 Difference]: With dead ends: 1201 [2023-12-21 08:39:27,033 INFO L226 Difference]: Without dead ends: 664 [2023-12-21 08:39:27,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 08:39:27,036 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 660 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 1734 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 1847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:27,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 1447 Invalid, 1847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1734 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-21 08:39:27,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2023-12-21 08:39:27,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 549. [2023-12-21 08:39:27,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 418 states have (on average 1.674641148325359) internal successors, (700), 435 states have internal predecessors, (700), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-21 08:39:27,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 905 transitions. [2023-12-21 08:39:27,108 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 905 transitions. Word has length 53 [2023-12-21 08:39:27,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:27,108 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 905 transitions. [2023-12-21 08:39:27,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:27,109 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 905 transitions. [2023-12-21 08:39:27,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-21 08:39:27,111 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:27,112 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:27,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 08:39:27,112 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:27,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:27,113 INFO L85 PathProgramCache]: Analyzing trace with hash 478406298, now seen corresponding path program 1 times [2023-12-21 08:39:27,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:27,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45835116] [2023-12-21 08:39:27,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:27,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:27,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:27,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:27,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:27,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:27,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:27,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 08:39:27,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:27,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 08:39:27,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:27,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 08:39:27,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:27,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:27,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:27,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-21 08:39:27,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:27,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-21 08:39:27,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:27,382 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:39:27,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:27,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45835116] [2023-12-21 08:39:27,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45835116] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:27,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:27,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 08:39:27,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970469296] [2023-12-21 08:39:27,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:27,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:39:27,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:27,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:39:27,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 08:39:27,383 INFO L87 Difference]: Start difference. First operand 549 states and 905 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:29,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:29,758 INFO L93 Difference]: Finished difference Result 1201 states and 1995 transitions. [2023-12-21 08:39:29,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:39:29,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 54 [2023-12-21 08:39:29,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:29,762 INFO L225 Difference]: With dead ends: 1201 [2023-12-21 08:39:29,762 INFO L226 Difference]: Without dead ends: 664 [2023-12-21 08:39:29,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 08:39:29,765 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 657 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 1732 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 1845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:29,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 1447 Invalid, 1845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1732 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-21 08:39:29,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2023-12-21 08:39:29,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 549. [2023-12-21 08:39:29,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 418 states have (on average 1.6722488038277512) internal successors, (699), 435 states have internal predecessors, (699), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-21 08:39:29,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 904 transitions. [2023-12-21 08:39:29,842 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 904 transitions. Word has length 54 [2023-12-21 08:39:29,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:29,846 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 904 transitions. [2023-12-21 08:39:29,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:29,846 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 904 transitions. [2023-12-21 08:39:29,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-21 08:39:29,847 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:29,847 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:29,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 08:39:29,847 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:29,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:29,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1007682570, now seen corresponding path program 1 times [2023-12-21 08:39:29,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:29,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253365058] [2023-12-21 08:39:29,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:29,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:29,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:30,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:30,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:30,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:30,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:30,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-21 08:39:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:30,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 08:39:30,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:30,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:39:30,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:30,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:30,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:30,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 08:39:30,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:30,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 08:39:30,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:30,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:39:30,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:30,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253365058] [2023-12-21 08:39:30,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253365058] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:30,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:30,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 08:39:30,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168636840] [2023-12-21 08:39:30,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:30,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:39:30,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:30,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:39:30,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 08:39:30,077 INFO L87 Difference]: Start difference. First operand 549 states and 904 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:32,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:32,380 INFO L93 Difference]: Finished difference Result 1201 states and 1994 transitions. [2023-12-21 08:39:32,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:39:32,381 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 55 [2023-12-21 08:39:32,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:32,384 INFO L225 Difference]: With dead ends: 1201 [2023-12-21 08:39:32,384 INFO L226 Difference]: Without dead ends: 664 [2023-12-21 08:39:32,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 08:39:32,387 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 654 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 1730 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 737 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 1843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:32,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [737 Valid, 1447 Invalid, 1843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1730 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-21 08:39:32,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2023-12-21 08:39:32,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 549. [2023-12-21 08:39:32,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 418 states have (on average 1.6698564593301435) internal successors, (698), 435 states have internal predecessors, (698), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-21 08:39:32,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 903 transitions. [2023-12-21 08:39:32,426 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 903 transitions. Word has length 55 [2023-12-21 08:39:32,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:32,426 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 903 transitions. [2023-12-21 08:39:32,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:32,426 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 903 transitions. [2023-12-21 08:39:32,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-21 08:39:32,427 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:32,427 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:32,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 08:39:32,427 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:32,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:32,428 INFO L85 PathProgramCache]: Analyzing trace with hash -203044074, now seen corresponding path program 1 times [2023-12-21 08:39:32,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:32,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140674536] [2023-12-21 08:39:32,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:32,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:32,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:32,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:32,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:32,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:32,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:32,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-21 08:39:32,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:32,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-21 08:39:32,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:32,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 08:39:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:32,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:32,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:39:32,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:32,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:39:32,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:32,651 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:39:32,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:32,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140674536] [2023-12-21 08:39:32,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140674536] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:32,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:32,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 08:39:32,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406470145] [2023-12-21 08:39:32,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:32,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:39:32,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:32,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:39:32,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 08:39:32,654 INFO L87 Difference]: Start difference. First operand 549 states and 903 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:34,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:34,937 INFO L93 Difference]: Finished difference Result 1201 states and 1993 transitions. [2023-12-21 08:39:34,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:39:34,938 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56 [2023-12-21 08:39:34,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:34,942 INFO L225 Difference]: With dead ends: 1201 [2023-12-21 08:39:34,942 INFO L226 Difference]: Without dead ends: 664 [2023-12-21 08:39:34,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 08:39:34,945 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 651 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 1728 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 1841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:34,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 1447 Invalid, 1841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1728 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-21 08:39:34,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2023-12-21 08:39:34,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 549. [2023-12-21 08:39:34,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 418 states have (on average 1.667464114832536) internal successors, (697), 435 states have internal predecessors, (697), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-21 08:39:34,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 902 transitions. [2023-12-21 08:39:34,988 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 902 transitions. Word has length 56 [2023-12-21 08:39:34,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:34,988 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 902 transitions. [2023-12-21 08:39:34,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:34,988 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 902 transitions. [2023-12-21 08:39:34,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-21 08:39:34,991 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:34,991 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:34,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 08:39:34,992 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:34,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:34,992 INFO L85 PathProgramCache]: Analyzing trace with hash -702633563, now seen corresponding path program 1 times [2023-12-21 08:39:34,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:34,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901389907] [2023-12-21 08:39:34,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:34,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:35,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:35,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:35,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:35,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:35,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:35,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 08:39:35,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:35,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:35,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:35,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:35,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:35,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 08:39:35,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:35,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 08:39:35,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:35,217 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:39:35,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:35,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901389907] [2023-12-21 08:39:35,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901389907] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:35,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:35,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 08:39:35,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336533442] [2023-12-21 08:39:35,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:35,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:39:35,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:35,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:39:35,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 08:39:35,218 INFO L87 Difference]: Start difference. First operand 549 states and 902 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:37,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:37,569 INFO L93 Difference]: Finished difference Result 1224 states and 2035 transitions. [2023-12-21 08:39:37,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 08:39:37,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 57 [2023-12-21 08:39:37,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:37,573 INFO L225 Difference]: With dead ends: 1224 [2023-12-21 08:39:37,573 INFO L226 Difference]: Without dead ends: 691 [2023-12-21 08:39:37,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:39:37,575 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 757 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 1890 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 1364 SdHoareTripleChecker+Invalid, 2005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:37,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 1364 Invalid, 2005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 1890 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-21 08:39:37,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2023-12-21 08:39:37,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 568. [2023-12-21 08:39:37,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 436 states have (on average 1.6628440366972477) internal successors, (725), 453 states have internal predecessors, (725), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-21 08:39:37,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 930 transitions. [2023-12-21 08:39:37,615 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 930 transitions. Word has length 57 [2023-12-21 08:39:37,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:37,616 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 930 transitions. [2023-12-21 08:39:37,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:37,616 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 930 transitions. [2023-12-21 08:39:37,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-21 08:39:37,616 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:37,617 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:37,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 08:39:37,617 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:37,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:37,617 INFO L85 PathProgramCache]: Analyzing trace with hash -433545124, now seen corresponding path program 1 times [2023-12-21 08:39:37,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:37,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997367501] [2023-12-21 08:39:37,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:37,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:37,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:37,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:37,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:37,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:37,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:37,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-21 08:39:37,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:37,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 08:39:37,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:37,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:37,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:39:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:37,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-21 08:39:37,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:37,871 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:39:37,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:37,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997367501] [2023-12-21 08:39:37,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997367501] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:37,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:37,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 08:39:37,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580009339] [2023-12-21 08:39:37,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:37,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:39:37,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:37,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:39:37,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 08:39:37,873 INFO L87 Difference]: Start difference. First operand 568 states and 930 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:40,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:40,219 INFO L93 Difference]: Finished difference Result 1207 states and 1985 transitions. [2023-12-21 08:39:40,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:39:40,220 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2023-12-21 08:39:40,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:40,223 INFO L225 Difference]: With dead ends: 1207 [2023-12-21 08:39:40,223 INFO L226 Difference]: Without dead ends: 691 [2023-12-21 08:39:40,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 08:39:40,226 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 733 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 1881 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 1990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 1881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:40,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 1360 Invalid, 1990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 1881 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-21 08:39:40,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2023-12-21 08:39:40,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 568. [2023-12-21 08:39:40,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 436 states have (on average 1.651376146788991) internal successors, (720), 453 states have internal predecessors, (720), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-21 08:39:40,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 925 transitions. [2023-12-21 08:39:40,270 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 925 transitions. Word has length 58 [2023-12-21 08:39:40,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:40,270 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 925 transitions. [2023-12-21 08:39:40,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:40,271 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 925 transitions. [2023-12-21 08:39:40,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-21 08:39:40,271 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:40,271 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:40,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 08:39:40,272 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:40,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:40,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1000188726, now seen corresponding path program 1 times [2023-12-21 08:39:40,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:40,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432750922] [2023-12-21 08:39:40,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:40,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:40,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:40,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:40,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:40,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:40,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:40,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:40,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:40,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 08:39:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:40,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:39:40,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:40,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:40,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:40,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-21 08:39:40,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:40,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 08:39:40,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:40,478 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:39:40,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:40,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432750922] [2023-12-21 08:39:40,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432750922] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:40,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:40,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 08:39:40,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059390969] [2023-12-21 08:39:40,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:40,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:39:40,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:40,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:39:40,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 08:39:40,480 INFO L87 Difference]: Start difference. First operand 568 states and 925 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:42,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:42,822 INFO L93 Difference]: Finished difference Result 1207 states and 1980 transitions. [2023-12-21 08:39:42,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:39:42,823 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 59 [2023-12-21 08:39:42,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:42,826 INFO L225 Difference]: With dead ends: 1207 [2023-12-21 08:39:42,826 INFO L226 Difference]: Without dead ends: 691 [2023-12-21 08:39:42,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 08:39:42,829 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 727 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 1866 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 1975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 1866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:42,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 1360 Invalid, 1975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 1866 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-21 08:39:42,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2023-12-21 08:39:42,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 568. [2023-12-21 08:39:42,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 436 states have (on average 1.639908256880734) internal successors, (715), 453 states have internal predecessors, (715), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-21 08:39:42,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 920 transitions. [2023-12-21 08:39:42,871 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 920 transitions. Word has length 59 [2023-12-21 08:39:42,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:42,872 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 920 transitions. [2023-12-21 08:39:42,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:42,872 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 920 transitions. [2023-12-21 08:39:42,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-21 08:39:42,872 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:42,872 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:42,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 08:39:42,873 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:42,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:42,873 INFO L85 PathProgramCache]: Analyzing trace with hash -387537534, now seen corresponding path program 1 times [2023-12-21 08:39:42,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:42,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294715607] [2023-12-21 08:39:42,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:42,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:42,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:43,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:43,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:43,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:43,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:43,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:43,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:43,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-21 08:39:43,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:43,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 08:39:43,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:43,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:43,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:43,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 08:39:43,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:43,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:39:43,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:43,137 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:39:43,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:43,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294715607] [2023-12-21 08:39:43,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294715607] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:43,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:43,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 08:39:43,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559548303] [2023-12-21 08:39:43,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:43,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:39:43,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:43,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:39:43,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 08:39:43,140 INFO L87 Difference]: Start difference. First operand 568 states and 920 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:45,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:45,835 INFO L93 Difference]: Finished difference Result 1227 states and 2007 transitions. [2023-12-21 08:39:45,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 08:39:45,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 60 [2023-12-21 08:39:45,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:45,838 INFO L225 Difference]: With dead ends: 1227 [2023-12-21 08:39:45,839 INFO L226 Difference]: Without dead ends: 717 [2023-12-21 08:39:45,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:39:45,842 INFO L413 NwaCegarLoop]: 474 mSDtfsCounter, 714 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 1833 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 1408 SdHoareTripleChecker+Invalid, 1940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:45,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 1408 Invalid, 1940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1833 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-21 08:39:45,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2023-12-21 08:39:45,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 572. [2023-12-21 08:39:45,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 440 states have (on average 1.634090909090909) internal successors, (719), 457 states have internal predecessors, (719), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-21 08:39:45,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 924 transitions. [2023-12-21 08:39:45,879 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 924 transitions. Word has length 60 [2023-12-21 08:39:45,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:45,880 INFO L495 AbstractCegarLoop]: Abstraction has 572 states and 924 transitions. [2023-12-21 08:39:45,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:45,880 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 924 transitions. [2023-12-21 08:39:45,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-21 08:39:45,881 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:45,881 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:45,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 08:39:45,881 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:45,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:45,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1704721823, now seen corresponding path program 1 times [2023-12-21 08:39:45,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:45,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554970376] [2023-12-21 08:39:45,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:45,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:45,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:46,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:46,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:46,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:46,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:46,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:46,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:46,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-21 08:39:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:46,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 08:39:46,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:46,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:46,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 08:39:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:46,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:39:46,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:46,060 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:39:46,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:46,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554970376] [2023-12-21 08:39:46,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554970376] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:46,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:46,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 08:39:46,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151911553] [2023-12-21 08:39:46,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:46,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:39:46,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:46,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:39:46,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 08:39:46,061 INFO L87 Difference]: Start difference. First operand 572 states and 924 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:48,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:48,322 INFO L93 Difference]: Finished difference Result 1217 states and 1984 transitions. [2023-12-21 08:39:48,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:39:48,323 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 60 [2023-12-21 08:39:48,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:48,339 INFO L225 Difference]: With dead ends: 1217 [2023-12-21 08:39:48,340 INFO L226 Difference]: Without dead ends: 697 [2023-12-21 08:39:48,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 08:39:48,342 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 721 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 1851 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 1960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 1851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:48,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 1360 Invalid, 1960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 1851 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-21 08:39:48,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2023-12-21 08:39:48,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 572. [2023-12-21 08:39:48,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 440 states have (on average 1.6227272727272728) internal successors, (714), 457 states have internal predecessors, (714), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-21 08:39:48,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 919 transitions. [2023-12-21 08:39:48,405 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 919 transitions. Word has length 60 [2023-12-21 08:39:48,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:48,406 INFO L495 AbstractCegarLoop]: Abstraction has 572 states and 919 transitions. [2023-12-21 08:39:48,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:48,406 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 919 transitions. [2023-12-21 08:39:48,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-21 08:39:48,408 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:48,408 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:48,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 08:39:48,409 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:48,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:48,409 INFO L85 PathProgramCache]: Analyzing trace with hash 179148652, now seen corresponding path program 1 times [2023-12-21 08:39:48,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:48,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575111115] [2023-12-21 08:39:48,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:48,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:48,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:48,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:48,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:48,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:48,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:48,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:48,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 08:39:48,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:48,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:39:48,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:48,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:48,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:48,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:39:48,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:48,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 08:39:48,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:48,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:39:48,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:48,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575111115] [2023-12-21 08:39:48,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575111115] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:48,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:48,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 08:39:48,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275486207] [2023-12-21 08:39:48,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:48,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:39:48,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:48,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:39:48,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 08:39:48,621 INFO L87 Difference]: Start difference. First operand 572 states and 919 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:50,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:50,782 INFO L93 Difference]: Finished difference Result 1235 states and 2006 transitions. [2023-12-21 08:39:50,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 08:39:50,782 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 61 [2023-12-21 08:39:50,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:50,786 INFO L225 Difference]: With dead ends: 1235 [2023-12-21 08:39:50,786 INFO L226 Difference]: Without dead ends: 723 [2023-12-21 08:39:50,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:39:50,788 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 715 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 1800 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 798 SdHoareTripleChecker+Valid, 1396 SdHoareTripleChecker+Invalid, 1908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:50,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [798 Valid, 1396 Invalid, 1908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1800 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-21 08:39:50,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2023-12-21 08:39:50,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 578. [2023-12-21 08:39:50,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 446 states have (on average 1.6143497757847534) internal successors, (720), 463 states have internal predecessors, (720), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-21 08:39:50,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 925 transitions. [2023-12-21 08:39:50,845 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 925 transitions. Word has length 61 [2023-12-21 08:39:50,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:50,845 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 925 transitions. [2023-12-21 08:39:50,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:50,845 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 925 transitions. [2023-12-21 08:39:50,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-21 08:39:50,847 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:50,847 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:50,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 08:39:50,848 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:50,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:50,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1906105327, now seen corresponding path program 1 times [2023-12-21 08:39:50,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:50,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305074015] [2023-12-21 08:39:50,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:50,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:50,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:51,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:51,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:51,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:51,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:51,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:51,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 08:39:51,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:51,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:39:51,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:51,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:51,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:51,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:39:51,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:51,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 08:39:51,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:51,067 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:39:51,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:51,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305074015] [2023-12-21 08:39:51,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305074015] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:51,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:51,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 08:39:51,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599355640] [2023-12-21 08:39:51,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:51,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:39:51,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:51,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:39:51,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 08:39:51,068 INFO L87 Difference]: Start difference. First operand 578 states and 925 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:53,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:53,080 INFO L93 Difference]: Finished difference Result 1232 states and 1993 transitions. [2023-12-21 08:39:53,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:39:53,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 61 [2023-12-21 08:39:53,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:53,085 INFO L225 Difference]: With dead ends: 1232 [2023-12-21 08:39:53,086 INFO L226 Difference]: Without dead ends: 706 [2023-12-21 08:39:53,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 08:39:53,087 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 715 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 1836 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 798 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 1945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 1836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:53,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [798 Valid, 1360 Invalid, 1945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 1836 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-21 08:39:53,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2023-12-21 08:39:53,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 578. [2023-12-21 08:39:53,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 446 states have (on average 1.6031390134529149) internal successors, (715), 463 states have internal predecessors, (715), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-21 08:39:53,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 920 transitions. [2023-12-21 08:39:53,133 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 920 transitions. Word has length 61 [2023-12-21 08:39:53,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:53,134 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 920 transitions. [2023-12-21 08:39:53,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:53,134 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 920 transitions. [2023-12-21 08:39:53,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-21 08:39:53,135 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:53,135 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:53,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 08:39:53,135 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:53,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:53,136 INFO L85 PathProgramCache]: Analyzing trace with hash -2079587257, now seen corresponding path program 1 times [2023-12-21 08:39:53,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:53,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316492705] [2023-12-21 08:39:53,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:53,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:53,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:53,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:53,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:53,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:53,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:53,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:53,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:53,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:39:53,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:53,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 08:39:53,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:53,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:53,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:53,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 08:39:53,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:53,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:39:53,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:53,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:39:53,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:53,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316492705] [2023-12-21 08:39:53,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316492705] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:53,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:53,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 08:39:53,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073972790] [2023-12-21 08:39:53,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:53,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:39:53,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:53,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:39:53,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 08:39:53,331 INFO L87 Difference]: Start difference. First operand 578 states and 920 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:55,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:55,547 INFO L93 Difference]: Finished difference Result 1247 states and 2009 transitions. [2023-12-21 08:39:55,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 08:39:55,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2023-12-21 08:39:55,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:55,551 INFO L225 Difference]: With dead ends: 1247 [2023-12-21 08:39:55,551 INFO L226 Difference]: Without dead ends: 732 [2023-12-21 08:39:55,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:39:55,553 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 707 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 1790 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 1391 SdHoareTripleChecker+Invalid, 1899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 1790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:55,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 1391 Invalid, 1899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 1790 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-21 08:39:55,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2023-12-21 08:39:55,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 586. [2023-12-21 08:39:55,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 454 states have (on average 1.592511013215859) internal successors, (723), 471 states have internal predecessors, (723), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-21 08:39:55,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 928 transitions. [2023-12-21 08:39:55,594 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 928 transitions. Word has length 62 [2023-12-21 08:39:55,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:55,595 INFO L495 AbstractCegarLoop]: Abstraction has 586 states and 928 transitions. [2023-12-21 08:39:55,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:55,595 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 928 transitions. [2023-12-21 08:39:55,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-21 08:39:55,595 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:55,596 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:55,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 08:39:55,596 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:55,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:55,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1854146662, now seen corresponding path program 1 times [2023-12-21 08:39:55,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:55,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311387004] [2023-12-21 08:39:55,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:55,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:55,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:55,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:55,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:55,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:55,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:55,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:55,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:39:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:55,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 08:39:55,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:55,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:55,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 08:39:55,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:55,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:39:55,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:55,776 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:39:55,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:55,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311387004] [2023-12-21 08:39:55,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311387004] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:55,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:55,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 08:39:55,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035463484] [2023-12-21 08:39:55,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:55,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:39:55,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:55,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:39:55,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 08:39:55,778 INFO L87 Difference]: Start difference. First operand 586 states and 928 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:58,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:58,072 INFO L93 Difference]: Finished difference Result 1292 states and 2062 transitions. [2023-12-21 08:39:58,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:39:58,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2023-12-21 08:39:58,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:58,075 INFO L225 Difference]: With dead ends: 1292 [2023-12-21 08:39:58,076 INFO L226 Difference]: Without dead ends: 718 [2023-12-21 08:39:58,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-21 08:39:58,077 INFO L413 NwaCegarLoop]: 489 mSDtfsCounter, 651 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 1726 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 1500 SdHoareTripleChecker+Invalid, 1834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:58,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 1500 Invalid, 1834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1726 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-21 08:39:58,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2023-12-21 08:39:58,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 586. [2023-12-21 08:39:58,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 454 states have (on average 1.5903083700440528) internal successors, (722), 471 states have internal predecessors, (722), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-21 08:39:58,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 927 transitions. [2023-12-21 08:39:58,127 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 927 transitions. Word has length 62 [2023-12-21 08:39:58,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:58,127 INFO L495 AbstractCegarLoop]: Abstraction has 586 states and 927 transitions. [2023-12-21 08:39:58,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:58,127 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 927 transitions. [2023-12-21 08:39:58,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-21 08:39:58,127 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:58,128 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:58,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 08:39:58,128 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:58,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:58,128 INFO L85 PathProgramCache]: Analyzing trace with hash 720956069, now seen corresponding path program 1 times [2023-12-21 08:39:58,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:58,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536117988] [2023-12-21 08:39:58,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:58,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:58,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:58,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:58,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:58,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:58,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:58,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:58,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:58,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:39:58,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:58,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 08:39:58,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:58,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:58,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:58,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 08:39:58,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:58,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:39:58,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:58,346 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:39:58,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:58,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536117988] [2023-12-21 08:39:58,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536117988] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:58,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:58,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 08:39:58,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828795081] [2023-12-21 08:39:58,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:58,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 08:39:58,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:58,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 08:39:58,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 08:39:58,347 INFO L87 Difference]: Start difference. First operand 586 states and 927 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-21 08:40:01,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:01,519 INFO L93 Difference]: Finished difference Result 1253 states and 2008 transitions. [2023-12-21 08:40:01,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 08:40:01,519 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 62 [2023-12-21 08:40:01,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:01,522 INFO L225 Difference]: With dead ends: 1253 [2023-12-21 08:40:01,522 INFO L226 Difference]: Without dead ends: 714 [2023-12-21 08:40:01,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-12-21 08:40:01,524 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 724 mSDsluCounter, 2278 mSDsCounter, 0 mSdLazyCounter, 3455 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 2760 SdHoareTripleChecker+Invalid, 3561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 3455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:01,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 2760 Invalid, 3561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 3455 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-21 08:40:01,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2023-12-21 08:40:01,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 578. [2023-12-21 08:40:01,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 446 states have (on average 1.5919282511210762) internal successors, (710), 463 states have internal predecessors, (710), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-21 08:40:01,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 915 transitions. [2023-12-21 08:40:01,561 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 915 transitions. Word has length 62 [2023-12-21 08:40:01,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:01,561 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 915 transitions. [2023-12-21 08:40:01,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-21 08:40:01,561 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 915 transitions. [2023-12-21 08:40:01,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-21 08:40:01,562 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:01,562 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:40:01,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 08:40:01,562 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:01,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:01,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1793702386, now seen corresponding path program 1 times [2023-12-21 08:40:01,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:01,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189184414] [2023-12-21 08:40:01,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:01,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:01,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:01,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:01,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:01,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:01,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:01,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:01,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:01,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 08:40:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:01,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:40:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:01,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:01,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:01,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-21 08:40:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:01,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 08:40:01,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:01,786 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:40:01,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:01,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189184414] [2023-12-21 08:40:01,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189184414] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:01,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:40:01,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 08:40:01,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466722392] [2023-12-21 08:40:01,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:01,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:40:01,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:01,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:40:01,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 08:40:01,788 INFO L87 Difference]: Start difference. First operand 578 states and 915 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:40:03,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:03,569 INFO L93 Difference]: Finished difference Result 1253 states and 2005 transitions. [2023-12-21 08:40:03,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 08:40:03,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2023-12-21 08:40:03,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:03,572 INFO L225 Difference]: With dead ends: 1253 [2023-12-21 08:40:03,572 INFO L226 Difference]: Without dead ends: 734 [2023-12-21 08:40:03,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:40:03,574 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 689 mSDsluCounter, 923 mSDsCounter, 0 mSdLazyCounter, 1779 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 1889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:03,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 1383 Invalid, 1889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1779 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-21 08:40:03,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2023-12-21 08:40:03,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 588. [2023-12-21 08:40:03,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 456 states have (on average 1.5789473684210527) internal successors, (720), 473 states have internal predecessors, (720), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-21 08:40:03,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 925 transitions. [2023-12-21 08:40:03,611 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 925 transitions. Word has length 63 [2023-12-21 08:40:03,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:03,611 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 925 transitions. [2023-12-21 08:40:03,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:40:03,611 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 925 transitions. [2023-12-21 08:40:03,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-21 08:40:03,612 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:03,612 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:40:03,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 08:40:03,612 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:03,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:03,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1750729383, now seen corresponding path program 1 times [2023-12-21 08:40:03,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:03,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440320593] [2023-12-21 08:40:03,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:03,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:03,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:03,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:03,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:03,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:03,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:03,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:40:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:03,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 08:40:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:03,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:03,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 08:40:03,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:03,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 08:40:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:03,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:40:03,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:03,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440320593] [2023-12-21 08:40:03,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440320593] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:03,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:40:03,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 08:40:03,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690540966] [2023-12-21 08:40:03,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:03,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:40:03,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:03,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:40:03,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 08:40:03,773 INFO L87 Difference]: Start difference. First operand 588 states and 925 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:40:06,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:06,116 INFO L93 Difference]: Finished difference Result 1255 states and 1999 transitions. [2023-12-21 08:40:06,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 08:40:06,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 64 [2023-12-21 08:40:06,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:06,122 INFO L225 Difference]: With dead ends: 1255 [2023-12-21 08:40:06,122 INFO L226 Difference]: Without dead ends: 711 [2023-12-21 08:40:06,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:40:06,137 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 723 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 1801 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 1345 SdHoareTripleChecker+Invalid, 1914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:06,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [806 Valid, 1345 Invalid, 1914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1801 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-21 08:40:06,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2023-12-21 08:40:06,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 588. [2023-12-21 08:40:06,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 456 states have (on average 1.5701754385964912) internal successors, (716), 473 states have internal predecessors, (716), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-21 08:40:06,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 921 transitions. [2023-12-21 08:40:06,175 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 921 transitions. Word has length 64 [2023-12-21 08:40:06,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:06,175 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 921 transitions. [2023-12-21 08:40:06,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:40:06,176 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 921 transitions. [2023-12-21 08:40:06,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-21 08:40:06,176 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:06,176 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:40:06,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 08:40:06,177 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:06,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:06,177 INFO L85 PathProgramCache]: Analyzing trace with hash -378922085, now seen corresponding path program 1 times [2023-12-21 08:40:06,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:06,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344474901] [2023-12-21 08:40:06,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:06,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:06,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:06,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:06,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:06,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:06,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:06,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:40:06,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:06,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 08:40:06,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:06,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:06,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:06,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 08:40:06,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:06,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 08:40:06,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:06,384 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:40:06,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:06,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344474901] [2023-12-21 08:40:06,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344474901] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:06,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:40:06,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 08:40:06,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444728373] [2023-12-21 08:40:06,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:06,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:40:06,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:06,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:40:06,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 08:40:06,385 INFO L87 Difference]: Start difference. First operand 588 states and 921 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-21 08:40:09,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:09,574 INFO L93 Difference]: Finished difference Result 1837 states and 2974 transitions. [2023-12-21 08:40:09,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:40:09,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 64 [2023-12-21 08:40:09,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:09,579 INFO L225 Difference]: With dead ends: 1837 [2023-12-21 08:40:09,580 INFO L226 Difference]: Without dead ends: 1319 [2023-12-21 08:40:09,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 08:40:09,581 INFO L413 NwaCegarLoop]: 480 mSDtfsCounter, 1923 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 1242 mSolverCounterSat, 420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2027 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 1662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 420 IncrementalHoareTripleChecker+Valid, 1242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:09,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2027 Valid, 997 Invalid, 1662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [420 Valid, 1242 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-21 08:40:09,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2023-12-21 08:40:09,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1041. [2023-12-21 08:40:09,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 809 states have (on average 1.5970333745364649) internal successors, (1292), 835 states have internal predecessors, (1292), 182 states have call successors, (182), 51 states have call predecessors, (182), 49 states have return successors, (187), 169 states have call predecessors, (187), 180 states have call successors, (187) [2023-12-21 08:40:09,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1661 transitions. [2023-12-21 08:40:09,692 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1661 transitions. Word has length 64 [2023-12-21 08:40:09,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:09,693 INFO L495 AbstractCegarLoop]: Abstraction has 1041 states and 1661 transitions. [2023-12-21 08:40:09,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-21 08:40:09,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1661 transitions. [2023-12-21 08:40:09,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-21 08:40:09,695 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:09,696 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:40:09,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-21 08:40:09,696 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:09,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:09,696 INFO L85 PathProgramCache]: Analyzing trace with hash -101802762, now seen corresponding path program 1 times [2023-12-21 08:40:09,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:09,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089254422] [2023-12-21 08:40:09,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:09,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:09,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:09,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:09,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:09,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:09,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:09,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:40:09,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:10,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:40:10,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:10,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:10,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:10,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:10,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:10,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:10,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 08:40:10,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:10,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:10,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:10,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:10,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:10,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:10,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:40:10,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:10,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-21 08:40:10,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:10,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:10,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:10,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 08:40:10,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:10,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 08:40:10,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:10,322 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-21 08:40:10,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:10,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089254422] [2023-12-21 08:40:10,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089254422] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:40:10,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132451308] [2023-12-21 08:40:10,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:10,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:40:10,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:40:10,331 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:40:10,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 08:40:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:10,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 1427 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 08:40:10,619 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:40:10,742 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-21 08:40:10,742 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:40:10,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132451308] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:10,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:40:10,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [15] total 18 [2023-12-21 08:40:10,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462214265] [2023-12-21 08:40:10,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:10,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:40:10,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:10,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:40:10,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2023-12-21 08:40:10,744 INFO L87 Difference]: Start difference. First operand 1041 states and 1661 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 08:40:11,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:11,237 INFO L93 Difference]: Finished difference Result 2028 states and 3325 transitions. [2023-12-21 08:40:11,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:40:11,237 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 115 [2023-12-21 08:40:11,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:11,241 INFO L225 Difference]: With dead ends: 2028 [2023-12-21 08:40:11,241 INFO L226 Difference]: Without dead ends: 1057 [2023-12-21 08:40:11,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2023-12-21 08:40:11,245 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 824 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 2087 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:11,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 2087 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 08:40:11,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2023-12-21 08:40:11,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 1057. [2023-12-21 08:40:11,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 823 states have (on average 1.5990279465370596) internal successors, (1316), 849 states have internal predecessors, (1316), 182 states have call successors, (182), 53 states have call predecessors, (182), 51 states have return successors, (189), 169 states have call predecessors, (189), 180 states have call successors, (189) [2023-12-21 08:40:11,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1687 transitions. [2023-12-21 08:40:11,328 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1687 transitions. Word has length 115 [2023-12-21 08:40:11,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:11,328 INFO L495 AbstractCegarLoop]: Abstraction has 1057 states and 1687 transitions. [2023-12-21 08:40:11,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 08:40:11,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1687 transitions. [2023-12-21 08:40:11,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 08:40:11,330 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:11,330 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:40:11,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-21 08:40:11,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:40:11,537 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:11,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:11,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1944363495, now seen corresponding path program 1 times [2023-12-21 08:40:11,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:11,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190917010] [2023-12-21 08:40:11,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:11,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:11,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:11,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:11,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:11,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:11,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:11,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:40:11,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:11,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:40:11,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:12,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:12,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 08:40:12,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 08:40:12,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:12,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 08:40:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-21 08:40:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 08:40:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:12,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 08:40:12,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-21 08:40:12,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,042 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-21 08:40:12,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:12,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190917010] [2023-12-21 08:40:12,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190917010] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:40:12,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848606498] [2023-12-21 08:40:12,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:12,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:40:12,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:40:12,044 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:40:12,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 08:40:12,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 1430 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 08:40:12,319 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:40:12,406 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-21 08:40:12,406 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:40:12,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848606498] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:12,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:40:12,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2023-12-21 08:40:12,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172928380] [2023-12-21 08:40:12,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:12,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:40:12,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:12,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:40:12,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-12-21 08:40:12,407 INFO L87 Difference]: Start difference. First operand 1057 states and 1687 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 08:40:12,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:12,889 INFO L93 Difference]: Finished difference Result 2060 states and 3371 transitions. [2023-12-21 08:40:12,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:40:12,889 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 118 [2023-12-21 08:40:12,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:12,894 INFO L225 Difference]: With dead ends: 2060 [2023-12-21 08:40:12,894 INFO L226 Difference]: Without dead ends: 1073 [2023-12-21 08:40:12,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-12-21 08:40:12,900 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 814 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 2087 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:12,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [832 Valid, 2087 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 08:40:12,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2023-12-21 08:40:13,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 1073. [2023-12-21 08:40:13,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1073 states, 837 states have (on average 1.6009557945041817) internal successors, (1340), 863 states have internal predecessors, (1340), 182 states have call successors, (182), 55 states have call predecessors, (182), 53 states have return successors, (191), 169 states have call predecessors, (191), 180 states have call successors, (191) [2023-12-21 08:40:13,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1713 transitions. [2023-12-21 08:40:13,014 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1713 transitions. Word has length 118 [2023-12-21 08:40:13,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:13,014 INFO L495 AbstractCegarLoop]: Abstraction has 1073 states and 1713 transitions. [2023-12-21 08:40:13,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 08:40:13,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1713 transitions. [2023-12-21 08:40:13,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 08:40:13,016 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:13,016 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:40:13,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-21 08:40:13,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2023-12-21 08:40:13,223 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:13,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:13,223 INFO L85 PathProgramCache]: Analyzing trace with hash -700499950, now seen corresponding path program 1 times [2023-12-21 08:40:13,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:13,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503011529] [2023-12-21 08:40:13,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:13,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:13,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:13,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:13,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:13,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:13,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:13,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:13,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:40:13,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:13,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:40:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:13,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:13,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:13,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:13,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 08:40:13,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:13,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-21 08:40:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:13,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:13,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:13,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:13,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:13,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 08:40:13,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:13,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:40:13,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:13,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-21 08:40:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:13,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:13,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:13,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 08:40:13,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:13,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 08:40:13,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:13,652 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-21 08:40:13,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:13,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503011529] [2023-12-21 08:40:13,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503011529] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:40:13,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593510567] [2023-12-21 08:40:13,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:13,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:40:13,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:40:13,653 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:40:13,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 08:40:13,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:13,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 1433 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 08:40:13,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:40:14,014 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-21 08:40:14,014 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:40:14,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1593510567] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:14,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:40:14,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2023-12-21 08:40:14,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136274775] [2023-12-21 08:40:14,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:14,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:40:14,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:14,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:40:14,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-12-21 08:40:14,015 INFO L87 Difference]: Start difference. First operand 1073 states and 1713 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 08:40:14,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:14,498 INFO L93 Difference]: Finished difference Result 2092 states and 3417 transitions. [2023-12-21 08:40:14,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:40:14,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 121 [2023-12-21 08:40:14,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:14,503 INFO L225 Difference]: With dead ends: 2092 [2023-12-21 08:40:14,503 INFO L226 Difference]: Without dead ends: 1089 [2023-12-21 08:40:14,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-12-21 08:40:14,506 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 818 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 2087 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:14,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 2087 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 08:40:14,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2023-12-21 08:40:14,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1089. [2023-12-21 08:40:14,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1089 states, 851 states have (on average 1.6028202115158636) internal successors, (1364), 877 states have internal predecessors, (1364), 182 states have call successors, (182), 57 states have call predecessors, (182), 55 states have return successors, (193), 169 states have call predecessors, (193), 180 states have call successors, (193) [2023-12-21 08:40:14,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 1089 states and 1739 transitions. [2023-12-21 08:40:14,588 INFO L78 Accepts]: Start accepts. Automaton has 1089 states and 1739 transitions. Word has length 121 [2023-12-21 08:40:14,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:14,589 INFO L495 AbstractCegarLoop]: Abstraction has 1089 states and 1739 transitions. [2023-12-21 08:40:14,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 08:40:14,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 1739 transitions. [2023-12-21 08:40:14,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-21 08:40:14,591 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:14,591 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:40:14,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-21 08:40:14,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:40:14,798 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:14,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:14,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1145733559, now seen corresponding path program 1 times [2023-12-21 08:40:14,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:14,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285430725] [2023-12-21 08:40:14,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:14,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:14,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:15,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:15,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:15,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:15,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:15,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:15,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:40:15,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:15,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 08:40:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:15,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:15,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:15,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:15,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 08:40:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:15,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-21 08:40:15,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:15,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:15,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:15,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:15,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:15,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 08:40:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:15,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:40:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:15,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 08:40:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:15,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:15,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:15,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-21 08:40:15,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:15,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-21 08:40:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:15,414 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-21 08:40:15,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:15,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285430725] [2023-12-21 08:40:15,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285430725] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:40:15,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482857637] [2023-12-21 08:40:15,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:15,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:40:15,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:40:15,415 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:40:15,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-21 08:40:15,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:15,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 1436 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 08:40:15,664 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:40:15,745 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-12-21 08:40:15,746 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:40:15,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482857637] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:15,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:40:15,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2023-12-21 08:40:15,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922779492] [2023-12-21 08:40:15,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:15,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:40:15,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:15,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:40:15,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-12-21 08:40:15,747 INFO L87 Difference]: Start difference. First operand 1089 states and 1739 transitions. Second operand has 6 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-21 08:40:16,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:16,189 INFO L93 Difference]: Finished difference Result 2797 states and 4476 transitions. [2023-12-21 08:40:16,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 08:40:16,190 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 123 [2023-12-21 08:40:16,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:16,197 INFO L225 Difference]: With dead ends: 2797 [2023-12-21 08:40:16,197 INFO L226 Difference]: Without dead ends: 1778 [2023-12-21 08:40:16,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2023-12-21 08:40:16,201 INFO L413 NwaCegarLoop]: 1107 mSDtfsCounter, 852 mSDsluCounter, 3282 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 4389 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:16,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [857 Valid, 4389 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 08:40:16,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1778 states. [2023-12-21 08:40:16,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1778 to 1772. [2023-12-21 08:40:16,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1772 states, 1375 states have (on average 1.576) internal successors, (2167), 1404 states have internal predecessors, (2167), 297 states have call successors, (297), 99 states have call predecessors, (297), 99 states have return successors, (339), 284 states have call predecessors, (339), 293 states have call successors, (339) [2023-12-21 08:40:16,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1772 states to 1772 states and 2803 transitions. [2023-12-21 08:40:16,413 INFO L78 Accepts]: Start accepts. Automaton has 1772 states and 2803 transitions. Word has length 123 [2023-12-21 08:40:16,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:16,413 INFO L495 AbstractCegarLoop]: Abstraction has 1772 states and 2803 transitions. [2023-12-21 08:40:16,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-21 08:40:16,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1772 states and 2803 transitions. [2023-12-21 08:40:16,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-21 08:40:16,417 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:16,417 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:40:16,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-21 08:40:16,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:40:16,617 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:16,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:16,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1697203219, now seen corresponding path program 1 times [2023-12-21 08:40:16,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:16,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725426302] [2023-12-21 08:40:16,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:16,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:16,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:16,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:16,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:16,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:16,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:16,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:16,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:40:16,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:17,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:40:17,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:17,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:17,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:17,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:17,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:17,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 08:40:17,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:17,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-21 08:40:17,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:17,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:17,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:17,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:17,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:17,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 08:40:17,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:17,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:40:17,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:17,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 08:40:17,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:17,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:17,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:17,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-21 08:40:17,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:17,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 08:40:17,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:17,130 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-21 08:40:17,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:17,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725426302] [2023-12-21 08:40:17,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725426302] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:40:17,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643291392] [2023-12-21 08:40:17,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:17,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:40:17,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:40:17,131 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:40:17,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-21 08:40:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:17,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 1436 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 08:40:17,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:40:17,529 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-21 08:40:17,529 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:40:17,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643291392] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:17,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:40:17,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2023-12-21 08:40:17,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756192336] [2023-12-21 08:40:17,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:17,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:40:17,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:17,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:40:17,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-12-21 08:40:17,531 INFO L87 Difference]: Start difference. First operand 1772 states and 2803 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 08:40:18,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:18,016 INFO L93 Difference]: Finished difference Result 3506 states and 5680 transitions. [2023-12-21 08:40:18,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:40:18,016 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 124 [2023-12-21 08:40:18,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:18,023 INFO L225 Difference]: With dead ends: 3506 [2023-12-21 08:40:18,023 INFO L226 Difference]: Without dead ends: 1804 [2023-12-21 08:40:18,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-12-21 08:40:18,030 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 800 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 2087 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:18,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 2087 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 08:40:18,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1804 states. [2023-12-21 08:40:18,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1804 to 1804. [2023-12-21 08:40:18,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1804 states, 1403 states have (on average 1.578759800427655) internal successors, (2215), 1432 states have internal predecessors, (2215), 297 states have call successors, (297), 103 states have call predecessors, (297), 103 states have return successors, (343), 284 states have call predecessors, (343), 293 states have call successors, (343) [2023-12-21 08:40:18,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1804 states to 1804 states and 2855 transitions. [2023-12-21 08:40:18,182 INFO L78 Accepts]: Start accepts. Automaton has 1804 states and 2855 transitions. Word has length 124 [2023-12-21 08:40:18,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:18,182 INFO L495 AbstractCegarLoop]: Abstraction has 1804 states and 2855 transitions. [2023-12-21 08:40:18,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 08:40:18,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1804 states and 2855 transitions. [2023-12-21 08:40:18,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-21 08:40:18,185 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:18,185 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:40:18,191 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-21 08:40:18,391 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,SelfDestructingSolverStorable22 [2023-12-21 08:40:18,394 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:18,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:18,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1725402414, now seen corresponding path program 1 times [2023-12-21 08:40:18,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:18,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107612755] [2023-12-21 08:40:18,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:18,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:18,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:18,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:18,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:18,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:18,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:18,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:18,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:40:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:18,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:40:18,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:18,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:18,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:18,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:18,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:18,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:40:18,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:18,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 08:40:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:18,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:18,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:18,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:18,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:18,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:40:18,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:19,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 08:40:19,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:19,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:40:19,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:19,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:19,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:19,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 08:40:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:19,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 08:40:19,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:19,016 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-21 08:40:19,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:19,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107612755] [2023-12-21 08:40:19,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107612755] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:40:19,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697367407] [2023-12-21 08:40:19,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:19,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:40:19,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:40:19,017 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:40:19,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-21 08:40:19,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:19,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 1439 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-21 08:40:19,270 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:40:19,413 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 08:40:19,413 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:40:19,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697367407] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:19,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:40:19,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2023-12-21 08:40:19,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180348394] [2023-12-21 08:40:19,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:19,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:40:19,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:19,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:40:19,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2023-12-21 08:40:19,415 INFO L87 Difference]: Start difference. First operand 1804 states and 2855 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 6 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-12-21 08:40:20,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:20,792 INFO L93 Difference]: Finished difference Result 3567 states and 5677 transitions. [2023-12-21 08:40:20,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:40:20,793 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 6 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 127 [2023-12-21 08:40:20,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:20,801 INFO L225 Difference]: With dead ends: 3567 [2023-12-21 08:40:20,801 INFO L226 Difference]: Without dead ends: 1836 [2023-12-21 08:40:20,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2023-12-21 08:40:20,806 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 2076 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 1818 mSolverCounterSat, 547 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2189 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 2365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 547 IncrementalHoareTripleChecker+Valid, 1818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:20,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2189 Valid, 777 Invalid, 2365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [547 Valid, 1818 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 08:40:20,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2023-12-21 08:40:20,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 1710. [2023-12-21 08:40:20,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1710 states, 1281 states have (on average 1.5480093676814988) internal successors, (1983), 1330 states have internal predecessors, (1983), 331 states have call successors, (331), 93 states have call predecessors, (331), 97 states have return successors, (377), 312 states have call predecessors, (377), 327 states have call successors, (377) [2023-12-21 08:40:20,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1710 states to 1710 states and 2691 transitions. [2023-12-21 08:40:20,964 INFO L78 Accepts]: Start accepts. Automaton has 1710 states and 2691 transitions. Word has length 127 [2023-12-21 08:40:20,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:20,964 INFO L495 AbstractCegarLoop]: Abstraction has 1710 states and 2691 transitions. [2023-12-21 08:40:20,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 6 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-12-21 08:40:20,964 INFO L276 IsEmpty]: Start isEmpty. Operand 1710 states and 2691 transitions. [2023-12-21 08:40:20,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-21 08:40:20,966 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:20,967 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:40:20,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-21 08:40:21,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:40:21,174 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:21,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:21,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1046130160, now seen corresponding path program 1 times [2023-12-21 08:40:21,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:21,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90274421] [2023-12-21 08:40:21,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:21,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:21,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:21,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:21,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:21,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:40:21,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:40:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:21,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:21,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:40:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 08:40:21,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:21,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:40:21,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 08:40:21,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:40:21,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:21,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 08:40:21,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 08:40:21,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,820 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-21 08:40:21,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:21,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90274421] [2023-12-21 08:40:21,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90274421] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:40:21,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689913077] [2023-12-21 08:40:21,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:21,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:40:21,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:40:21,821 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:40:21,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-21 08:40:22,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:22,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 1442 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-21 08:40:22,068 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:40:22,188 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-21 08:40:22,188 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:40:22,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689913077] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:22,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:40:22,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 19 [2023-12-21 08:40:22,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815708946] [2023-12-21 08:40:22,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:22,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 08:40:22,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:22,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 08:40:22,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2023-12-21 08:40:22,189 INFO L87 Difference]: Start difference. First operand 1710 states and 2691 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-21 08:40:25,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:25,447 INFO L93 Difference]: Finished difference Result 7113 states and 11602 transitions. [2023-12-21 08:40:25,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-21 08:40:25,447 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 127 [2023-12-21 08:40:25,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:25,466 INFO L225 Difference]: With dead ends: 7113 [2023-12-21 08:40:25,466 INFO L226 Difference]: Without dead ends: 5475 [2023-12-21 08:40:25,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=119, Invalid=873, Unknown=0, NotChecked=0, Total=992 [2023-12-21 08:40:25,471 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 2738 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 6064 mSolverCounterSat, 727 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2844 SdHoareTripleChecker+Valid, 1926 SdHoareTripleChecker+Invalid, 6791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 727 IncrementalHoareTripleChecker+Valid, 6064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:25,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2844 Valid, 1926 Invalid, 6791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [727 Valid, 6064 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-21 08:40:25,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5475 states. [2023-12-21 08:40:25,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5475 to 5095. [2023-12-21 08:40:25,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5095 states, 3768 states have (on average 1.5591825902335457) internal successors, (5875), 3922 states have internal predecessors, (5875), 1016 states have call successors, (1016), 261 states have call predecessors, (1016), 310 states have return successors, (1360), 988 states have call predecessors, (1360), 1008 states have call successors, (1360) [2023-12-21 08:40:25,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5095 states to 5095 states and 8251 transitions. [2023-12-21 08:40:25,956 INFO L78 Accepts]: Start accepts. Automaton has 5095 states and 8251 transitions. Word has length 127 [2023-12-21 08:40:25,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:25,956 INFO L495 AbstractCegarLoop]: Abstraction has 5095 states and 8251 transitions. [2023-12-21 08:40:25,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-21 08:40:25,956 INFO L276 IsEmpty]: Start isEmpty. Operand 5095 states and 8251 transitions. [2023-12-21 08:40:25,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-21 08:40:25,959 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:25,959 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:40:25,980 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-21 08:40:26,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:40:26,167 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:26,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:26,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1105750953, now seen corresponding path program 1 times [2023-12-21 08:40:26,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:26,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343498946] [2023-12-21 08:40:26,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:26,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:26,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:26,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:26,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:26,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:26,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:26,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:40:26,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:26,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:40:26,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:26,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:26,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:26,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:26,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:26,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:40:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:26,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 08:40:26,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:26,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:26,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:26,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:26,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:26,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:40:26,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:26,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 08:40:26,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:26,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:26,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:26,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-21 08:40:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:26,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:26,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:26,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 08:40:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:26,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-21 08:40:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:26,712 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-21 08:40:26,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:26,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343498946] [2023-12-21 08:40:26,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343498946] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:26,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:40:26,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 08:40:26,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367904006] [2023-12-21 08:40:26,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:26,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 08:40:26,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:26,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 08:40:26,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:40:26,713 INFO L87 Difference]: Start difference. First operand 5095 states and 8251 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-21 08:40:40,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:40,425 INFO L93 Difference]: Finished difference Result 23871 states and 40582 transitions. [2023-12-21 08:40:40,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-21 08:40:40,425 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 131 [2023-12-21 08:40:40,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:40,498 INFO L225 Difference]: With dead ends: 23871 [2023-12-21 08:40:40,498 INFO L226 Difference]: Without dead ends: 18852 [2023-12-21 08:40:40,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=251, Invalid=619, Unknown=0, NotChecked=0, Total=870 [2023-12-21 08:40:40,519 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 6948 mSDsluCounter, 1045 mSDsCounter, 0 mSdLazyCounter, 5111 mSolverCounterSat, 2797 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7014 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 7908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2797 IncrementalHoareTripleChecker+Valid, 5111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:40,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7014 Valid, 1693 Invalid, 7908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2797 Valid, 5111 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2023-12-21 08:40:40,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18852 states. [2023-12-21 08:40:41,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18852 to 5149. [2023-12-21 08:40:41,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5149 states, 3804 states have (on average 1.5567823343848581) internal successors, (5922), 3956 states have internal predecessors, (5922), 1031 states have call successors, (1031), 261 states have call predecessors, (1031), 313 states have return successors, (1364), 1003 states have call predecessors, (1364), 1023 states have call successors, (1364) [2023-12-21 08:40:41,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 8317 transitions. [2023-12-21 08:40:41,588 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 8317 transitions. Word has length 131 [2023-12-21 08:40:41,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:41,589 INFO L495 AbstractCegarLoop]: Abstraction has 5149 states and 8317 transitions. [2023-12-21 08:40:41,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-21 08:40:41,589 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 8317 transitions. [2023-12-21 08:40:41,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-21 08:40:41,591 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:41,591 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:40:41,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-21 08:40:41,592 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:41,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:41,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1178137511, now seen corresponding path program 1 times [2023-12-21 08:40:41,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:41,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536127370] [2023-12-21 08:40:41,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:41,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:41,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:41,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:41,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:41,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:41,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:41,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:40:41,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:40:42,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:42,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:42,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:40:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 08:40:42,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:42,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:42,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:40:42,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 08:40:42,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:42,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-21 08:40:42,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:42,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 08:40:42,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-21 08:40:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,190 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-21 08:40:42,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:42,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536127370] [2023-12-21 08:40:42,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536127370] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:40:42,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859404984] [2023-12-21 08:40:42,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:42,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:40:42,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:40:42,192 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:40:42,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-21 08:40:42,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 1457 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-21 08:40:42,459 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:40:42,564 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-21 08:40:42,564 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:40:42,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859404984] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:42,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:40:42,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2023-12-21 08:40:42,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546301104] [2023-12-21 08:40:42,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:42,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:40:42,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:42,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:40:42,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2023-12-21 08:40:42,566 INFO L87 Difference]: Start difference. First operand 5149 states and 8317 transitions. Second operand has 6 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 08:40:43,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:43,655 INFO L93 Difference]: Finished difference Result 5193 states and 8360 transitions. [2023-12-21 08:40:43,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 08:40:43,655 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2023-12-21 08:40:43,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:43,674 INFO L225 Difference]: With dead ends: 5193 [2023-12-21 08:40:43,674 INFO L226 Difference]: Without dead ends: 5191 [2023-12-21 08:40:43,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2023-12-21 08:40:43,676 INFO L413 NwaCegarLoop]: 953 mSDtfsCounter, 388 mSDsluCounter, 2831 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 3784 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:43,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 3784 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 08:40:43,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5191 states. [2023-12-21 08:40:44,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5191 to 5149. [2023-12-21 08:40:44,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5149 states, 3804 states have (on average 1.5496845425867507) internal successors, (5895), 3956 states have internal predecessors, (5895), 1031 states have call successors, (1031), 261 states have call predecessors, (1031), 313 states have return successors, (1364), 1003 states have call predecessors, (1364), 1023 states have call successors, (1364) [2023-12-21 08:40:44,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 8290 transitions. [2023-12-21 08:40:44,530 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 8290 transitions. Word has length 131 [2023-12-21 08:40:44,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:44,531 INFO L495 AbstractCegarLoop]: Abstraction has 5149 states and 8290 transitions. [2023-12-21 08:40:44,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 08:40:44,531 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 8290 transitions. [2023-12-21 08:40:44,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-21 08:40:44,534 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:44,534 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:40:44,541 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-21 08:40:44,741 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,SelfDestructingSolverStorable26 [2023-12-21 08:40:44,741 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:44,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:44,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1136312007, now seen corresponding path program 1 times [2023-12-21 08:40:44,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:44,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639146076] [2023-12-21 08:40:44,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:44,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:44,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:44,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:44,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:45,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:40:45,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:40:45,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:45,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:45,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:40:45,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 08:40:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 08:40:45,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 08:40:45,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:40:45,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 08:40:45,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 08:40:45,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 08:40:45,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-21 08:40:45,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:45,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-21 08:40:45,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-21 08:40:45,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,287 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-12-21 08:40:45,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:45,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639146076] [2023-12-21 08:40:45,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639146076] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:45,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:40:45,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 08:40:45,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010205242] [2023-12-21 08:40:45,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:45,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 08:40:45,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:45,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 08:40:45,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-21 08:40:45,288 INFO L87 Difference]: Start difference. First operand 5149 states and 8290 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-21 08:40:56,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:56,318 INFO L93 Difference]: Finished difference Result 20589 states and 35236 transitions. [2023-12-21 08:40:56,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-21 08:40:56,318 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) Word has length 157 [2023-12-21 08:40:56,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:56,445 INFO L225 Difference]: With dead ends: 20589 [2023-12-21 08:40:56,445 INFO L226 Difference]: Without dead ends: 15512 [2023-12-21 08:40:56,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=186, Invalid=366, Unknown=0, NotChecked=0, Total=552 [2023-12-21 08:40:56,465 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 6074 mSDsluCounter, 1219 mSDsCounter, 0 mSdLazyCounter, 3661 mSolverCounterSat, 2396 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6256 SdHoareTripleChecker+Valid, 1585 SdHoareTripleChecker+Invalid, 6057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2396 IncrementalHoareTripleChecker+Valid, 3661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:56,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6256 Valid, 1585 Invalid, 6057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2396 Valid, 3661 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-12-21 08:40:56,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15512 states. [2023-12-21 08:40:57,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15512 to 5173. [2023-12-21 08:40:57,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 3828 states have (on average 1.5462382445141065) internal successors, (5919), 3980 states have internal predecessors, (5919), 1031 states have call successors, (1031), 261 states have call predecessors, (1031), 313 states have return successors, (1364), 1003 states have call predecessors, (1364), 1023 states have call successors, (1364) [2023-12-21 08:40:57,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 8314 transitions. [2023-12-21 08:40:57,616 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 8314 transitions. Word has length 157 [2023-12-21 08:40:57,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:57,616 INFO L495 AbstractCegarLoop]: Abstraction has 5173 states and 8314 transitions. [2023-12-21 08:40:57,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-21 08:40:57,616 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 8314 transitions. [2023-12-21 08:40:57,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-21 08:40:57,620 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:57,620 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:40:57,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-21 08:40:57,621 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:57,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:57,621 INFO L85 PathProgramCache]: Analyzing trace with hash 2087053667, now seen corresponding path program 1 times [2023-12-21 08:40:57,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:57,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321297905] [2023-12-21 08:40:57,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:57,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:57,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:57,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:57,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:57,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:57,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:57,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:40:57,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:40:58,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:58,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:58,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:40:58,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:40:58,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:40:58,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 08:40:58,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 08:40:58,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 08:40:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 08:40:58,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:40:58,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-21 08:40:58,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:58,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-21 08:40:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-21 08:40:58,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,216 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2023-12-21 08:40:58,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:58,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321297905] [2023-12-21 08:40:58,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321297905] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:40:58,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206180983] [2023-12-21 08:40:58,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:58,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:40:58,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:40:58,217 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:40:58,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-21 08:40:58,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 1582 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:40:58,508 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:40:58,527 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-21 08:40:58,527 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:40:58,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206180983] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:58,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:40:58,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2023-12-21 08:40:58,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666258198] [2023-12-21 08:40:58,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:58,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:40:58,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:58,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:40:58,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-12-21 08:40:58,528 INFO L87 Difference]: Start difference. First operand 5173 states and 8314 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 08:40:59,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:59,664 INFO L93 Difference]: Finished difference Result 10508 states and 17108 transitions. [2023-12-21 08:40:59,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:40:59,665 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 166 [2023-12-21 08:40:59,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:59,703 INFO L225 Difference]: With dead ends: 10508 [2023-12-21 08:40:59,704 INFO L226 Difference]: Without dead ends: 5407 [2023-12-21 08:40:59,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-12-21 08:40:59,736 INFO L413 NwaCegarLoop]: 785 mSDtfsCounter, 213 mSDsluCounter, 1546 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2331 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:59,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 2331 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:40:59,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5407 states. [2023-12-21 08:41:00,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5407 to 5407. [2023-12-21 08:41:00,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5407 states, 4056 states have (on average 1.5673076923076923) internal successors, (6357), 4208 states have internal predecessors, (6357), 1031 states have call successors, (1031), 267 states have call predecessors, (1031), 319 states have return successors, (1364), 1003 states have call predecessors, (1364), 1023 states have call successors, (1364) [2023-12-21 08:41:00,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5407 states to 5407 states and 8752 transitions. [2023-12-21 08:41:00,718 INFO L78 Accepts]: Start accepts. Automaton has 5407 states and 8752 transitions. Word has length 166 [2023-12-21 08:41:00,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:00,719 INFO L495 AbstractCegarLoop]: Abstraction has 5407 states and 8752 transitions. [2023-12-21 08:41:00,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 08:41:00,719 INFO L276 IsEmpty]: Start isEmpty. Operand 5407 states and 8752 transitions. [2023-12-21 08:41:00,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-12-21 08:41:00,723 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:00,723 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:41:00,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-21 08:41:00,929 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,SelfDestructingSolverStorable28 [2023-12-21 08:41:00,930 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:00,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:00,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1795429404, now seen corresponding path program 1 times [2023-12-21 08:41:00,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:00,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068842737] [2023-12-21 08:41:00,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:00,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:01,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:01,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:01,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:01,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:41:01,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:01,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:01,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 08:41:01,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:01,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 08:41:01,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-21 08:41:01,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-21 08:41:01,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 08:41:01,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 08:41:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 08:41:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-21 08:41:01,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-21 08:41:01,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:01,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-21 08:41:01,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-21 08:41:01,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,648 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2023-12-21 08:41:01,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:01,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068842737] [2023-12-21 08:41:01,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068842737] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:01,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125091031] [2023-12-21 08:41:01,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:01,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:01,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:01,665 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:41:01,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-21 08:41:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 1601 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-21 08:41:01,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:02,402 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-12-21 08:41:02,402 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:41:02,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125091031] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:02,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:41:02,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [18] total 25 [2023-12-21 08:41:02,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384538552] [2023-12-21 08:41:02,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:02,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 08:41:02,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:02,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 08:41:02,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2023-12-21 08:41:02,404 INFO L87 Difference]: Start difference. First operand 5407 states and 8752 transitions. Second operand has 10 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 6 states have call successors, (22), 5 states have call predecessors, (22), 6 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) [2023-12-21 08:41:08,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:08,936 INFO L93 Difference]: Finished difference Result 20216 states and 33834 transitions. [2023-12-21 08:41:08,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-21 08:41:08,936 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 6 states have call successors, (22), 5 states have call predecessors, (22), 6 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) Word has length 176 [2023-12-21 08:41:08,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:08,992 INFO L225 Difference]: With dead ends: 20216 [2023-12-21 08:41:08,992 INFO L226 Difference]: Without dead ends: 14879 [2023-12-21 08:41:09,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=146, Invalid=910, Unknown=0, NotChecked=0, Total=1056 [2023-12-21 08:41:09,017 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 2540 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 8200 mSolverCounterSat, 606 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2731 SdHoareTripleChecker+Valid, 1865 SdHoareTripleChecker+Invalid, 8806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 606 IncrementalHoareTripleChecker+Valid, 8200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-21 08:41:09,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2731 Valid, 1865 Invalid, 8806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [606 Valid, 8200 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-21 08:41:09,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14879 states. [2023-12-21 08:41:11,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14879 to 14387. [2023-12-21 08:41:11,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14387 states, 10835 states have (on average 1.5626211352099677) internal successors, (16931), 11253 states have internal predecessors, (16931), 2701 states have call successors, (2701), 751 states have call predecessors, (2701), 850 states have return successors, (3738), 2586 states have call predecessors, (3738), 2681 states have call successors, (3738) [2023-12-21 08:41:11,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14387 states to 14387 states and 23370 transitions. [2023-12-21 08:41:11,763 INFO L78 Accepts]: Start accepts. Automaton has 14387 states and 23370 transitions. Word has length 176 [2023-12-21 08:41:11,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:11,763 INFO L495 AbstractCegarLoop]: Abstraction has 14387 states and 23370 transitions. [2023-12-21 08:41:11,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 6 states have call successors, (22), 5 states have call predecessors, (22), 6 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) [2023-12-21 08:41:11,763 INFO L276 IsEmpty]: Start isEmpty. Operand 14387 states and 23370 transitions. [2023-12-21 08:41:11,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-21 08:41:11,767 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:11,767 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:41:11,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-21 08:41:11,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:11,976 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:11,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:11,977 INFO L85 PathProgramCache]: Analyzing trace with hash 462518852, now seen corresponding path program 1 times [2023-12-21 08:41:11,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:11,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959830613] [2023-12-21 08:41:11,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:11,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:11,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:12,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:12,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:12,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:41:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:12,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:12,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:12,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:41:12,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:41:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:41:12,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 08:41:12,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 08:41:12,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 08:41:12,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 08:41:12,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-21 08:41:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:12,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-21 08:41:12,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-21 08:41:12,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,503 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-12-21 08:41:12,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:12,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959830613] [2023-12-21 08:41:12,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959830613] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:12,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919972002] [2023-12-21 08:41:12,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:12,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:12,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:12,505 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:41:12,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-21 08:41:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 1587 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:41:12,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:12,801 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-12-21 08:41:12,801 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:41:12,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919972002] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:12,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:41:12,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2023-12-21 08:41:12,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465836722] [2023-12-21 08:41:12,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:12,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:41:12,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:12,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:41:12,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-12-21 08:41:12,803 INFO L87 Difference]: Start difference. First operand 14387 states and 23370 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 08:41:15,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:15,616 INFO L93 Difference]: Finished difference Result 29402 states and 48318 transitions. [2023-12-21 08:41:15,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:41:15,617 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 171 [2023-12-21 08:41:15,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:15,665 INFO L225 Difference]: With dead ends: 29402 [2023-12-21 08:41:15,665 INFO L226 Difference]: Without dead ends: 15089 [2023-12-21 08:41:15,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-12-21 08:41:15,703 INFO L413 NwaCegarLoop]: 785 mSDtfsCounter, 211 mSDsluCounter, 1546 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2331 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:41:15,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 2331 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:41:15,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15089 states. [2023-12-21 08:41:18,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15089 to 15089. [2023-12-21 08:41:18,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15089 states, 11519 states have (on average 1.58390485285181) internal successors, (18245), 11937 states have internal predecessors, (18245), 2701 states have call successors, (2701), 769 states have call predecessors, (2701), 868 states have return successors, (3738), 2586 states have call predecessors, (3738), 2681 states have call successors, (3738) [2023-12-21 08:41:18,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15089 states to 15089 states and 24684 transitions. [2023-12-21 08:41:18,439 INFO L78 Accepts]: Start accepts. Automaton has 15089 states and 24684 transitions. Word has length 171 [2023-12-21 08:41:18,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:18,439 INFO L495 AbstractCegarLoop]: Abstraction has 15089 states and 24684 transitions. [2023-12-21 08:41:18,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 08:41:18,439 INFO L276 IsEmpty]: Start isEmpty. Operand 15089 states and 24684 transitions. [2023-12-21 08:41:18,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-12-21 08:41:18,443 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:18,443 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:41:18,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-21 08:41:18,649 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,SelfDestructingSolverStorable30 [2023-12-21 08:41:18,650 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:18,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:18,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1730202956, now seen corresponding path program 1 times [2023-12-21 08:41:18,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:18,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836123065] [2023-12-21 08:41:18,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:18,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:18,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:18,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:18,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:18,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:18,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:18,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:18,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:18,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:18,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:19,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:41:19,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:19,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:19,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:19,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:19,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:19,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:19,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:19,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:19,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:19,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:41:19,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:19,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:41:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:19,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:41:19,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:19,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:41:19,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:19,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 08:41:19,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:19,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 08:41:19,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:19,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-21 08:41:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:19,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-21 08:41:19,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:19,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:19,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-21 08:41:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:19,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-21 08:41:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:19,185 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2023-12-21 08:41:19,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:19,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836123065] [2023-12-21 08:41:19,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836123065] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:19,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998445856] [2023-12-21 08:41:19,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:19,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:19,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:19,186 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:41:19,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-21 08:41:19,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:19,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 1591 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:41:19,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:19,476 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:41:19,476 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:41:19,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998445856] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:19,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:41:19,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2023-12-21 08:41:19,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534429423] [2023-12-21 08:41:19,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:19,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:41:19,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:19,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:41:19,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-12-21 08:41:19,477 INFO L87 Difference]: Start difference. First operand 15089 states and 24684 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 08:41:22,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:22,300 INFO L93 Difference]: Finished difference Result 30806 states and 50912 transitions. [2023-12-21 08:41:22,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:41:22,301 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 175 [2023-12-21 08:41:22,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:22,360 INFO L225 Difference]: With dead ends: 30806 [2023-12-21 08:41:22,360 INFO L226 Difference]: Without dead ends: 15791 [2023-12-21 08:41:22,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-12-21 08:41:22,400 INFO L413 NwaCegarLoop]: 785 mSDtfsCounter, 209 mSDsluCounter, 1546 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2331 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:41:22,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 2331 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:41:22,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15791 states. [2023-12-21 08:41:25,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15791 to 15791. [2023-12-21 08:41:25,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15791 states, 12203 states have (on average 1.6028025895271654) internal successors, (19559), 12621 states have internal predecessors, (19559), 2701 states have call successors, (2701), 787 states have call predecessors, (2701), 886 states have return successors, (3738), 2586 states have call predecessors, (3738), 2681 states have call successors, (3738) [2023-12-21 08:41:25,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15791 states to 15791 states and 25998 transitions. [2023-12-21 08:41:25,170 INFO L78 Accepts]: Start accepts. Automaton has 15791 states and 25998 transitions. Word has length 175 [2023-12-21 08:41:25,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:25,170 INFO L495 AbstractCegarLoop]: Abstraction has 15791 states and 25998 transitions. [2023-12-21 08:41:25,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 08:41:25,171 INFO L276 IsEmpty]: Start isEmpty. Operand 15791 states and 25998 transitions. [2023-12-21 08:41:25,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-12-21 08:41:25,176 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:25,176 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:41:25,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-21 08:41:25,381 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,SelfDestructingSolverStorable31 [2023-12-21 08:41:25,382 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:25,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:25,382 INFO L85 PathProgramCache]: Analyzing trace with hash 504202755, now seen corresponding path program 1 times [2023-12-21 08:41:25,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:25,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461046285] [2023-12-21 08:41:25,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:25,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:25,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:25,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:25,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:25,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:25,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:25,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:25,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:25,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:25,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:25,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:41:25,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:25,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:25,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:25,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:25,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:25,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:25,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:25,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:25,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:41:25,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:25,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:41:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:25,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:41:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:25,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:41:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:25,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:41:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:25,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 08:41:25,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:25,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 08:41:25,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:25,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-21 08:41:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:25,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:25,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:25,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-21 08:41:25,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:25,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-21 08:41:25,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:25,975 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2023-12-21 08:41:25,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:25,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461046285] [2023-12-21 08:41:25,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461046285] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:25,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298197405] [2023-12-21 08:41:25,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:25,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:25,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:25,977 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:41:25,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-21 08:41:26,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 1594 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:41:26,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:26,261 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-21 08:41:26,261 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:41:26,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298197405] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:26,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:41:26,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2023-12-21 08:41:26,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848181057] [2023-12-21 08:41:26,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:26,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:41:26,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:26,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:41:26,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-12-21 08:41:26,263 INFO L87 Difference]: Start difference. First operand 15791 states and 25998 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 08:41:29,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:29,057 INFO L93 Difference]: Finished difference Result 32210 states and 53506 transitions. [2023-12-21 08:41:29,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:41:29,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 178 [2023-12-21 08:41:29,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:29,113 INFO L225 Difference]: With dead ends: 32210 [2023-12-21 08:41:29,113 INFO L226 Difference]: Without dead ends: 16493 [2023-12-21 08:41:29,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-12-21 08:41:29,152 INFO L413 NwaCegarLoop]: 785 mSDtfsCounter, 207 mSDsluCounter, 1546 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2331 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:41:29,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 2331 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:41:29,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16493 states. [2023-12-21 08:41:31,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16493 to 16493. [2023-12-21 08:41:31,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16493 states, 12887 states have (on average 1.6196942655389153) internal successors, (20873), 13305 states have internal predecessors, (20873), 2701 states have call successors, (2701), 805 states have call predecessors, (2701), 904 states have return successors, (3738), 2586 states have call predecessors, (3738), 2681 states have call successors, (3738) [2023-12-21 08:41:32,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16493 states to 16493 states and 27312 transitions. [2023-12-21 08:41:32,031 INFO L78 Accepts]: Start accepts. Automaton has 16493 states and 27312 transitions. Word has length 178 [2023-12-21 08:41:32,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:32,032 INFO L495 AbstractCegarLoop]: Abstraction has 16493 states and 27312 transitions. [2023-12-21 08:41:32,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 08:41:32,032 INFO L276 IsEmpty]: Start isEmpty. Operand 16493 states and 27312 transitions. [2023-12-21 08:41:32,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-21 08:41:32,037 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:32,037 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:41:32,043 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-12-21 08:41:32,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-12-21 08:41:32,243 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:32,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:32,243 INFO L85 PathProgramCache]: Analyzing trace with hash 2079878673, now seen corresponding path program 1 times [2023-12-21 08:41:32,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:32,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001284625] [2023-12-21 08:41:32,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:32,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:32,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:32,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:32,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:32,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:32,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:32,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:32,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:32,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:32,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:32,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:41:32,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:32,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:32,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:32,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:32,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:32,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:32,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:32,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:32,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:32,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:41:32,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:32,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:41:32,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:32,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:41:32,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:32,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:41:32,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:32,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:41:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:32,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:41:32,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:32,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:41:32,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:32,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-21 08:41:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:32,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:32,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-21 08:41:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:32,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-21 08:41:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:32,901 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 15 proven. 11 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-12-21 08:41:32,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:32,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001284625] [2023-12-21 08:41:32,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001284625] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:32,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887258737] [2023-12-21 08:41:32,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:32,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:32,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:32,902 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:41:32,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-21 08:41:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:33,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 1590 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-21 08:41:33,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:33,362 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2023-12-21 08:41:33,362 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:41:33,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887258737] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:33,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:41:33,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 21 [2023-12-21 08:41:33,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175315806] [2023-12-21 08:41:33,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:33,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 08:41:33,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:33,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 08:41:33,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2023-12-21 08:41:33,364 INFO L87 Difference]: Start difference. First operand 16493 states and 27312 transitions. Second operand has 9 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 4 states have call successors, (21), 4 states have call predecessors, (21), 6 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) [2023-12-21 08:41:41,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:41,357 INFO L93 Difference]: Finished difference Result 51731 states and 87229 transitions. [2023-12-21 08:41:41,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 08:41:41,357 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 4 states have call successors, (21), 4 states have call predecessors, (21), 6 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) Word has length 180 [2023-12-21 08:41:41,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:41,452 INFO L225 Difference]: With dead ends: 51731 [2023-12-21 08:41:41,453 INFO L226 Difference]: Without dead ends: 26106 [2023-12-21 08:41:41,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=105, Invalid=765, Unknown=0, NotChecked=0, Total=870 [2023-12-21 08:41:41,532 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 1953 mSDsluCounter, 1916 mSDsCounter, 0 mSdLazyCounter, 4027 mSolverCounterSat, 496 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2061 SdHoareTripleChecker+Valid, 2301 SdHoareTripleChecker+Invalid, 4523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 496 IncrementalHoareTripleChecker+Valid, 4027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-21 08:41:41,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2061 Valid, 2301 Invalid, 4523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [496 Valid, 4027 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-21 08:41:41,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26106 states. [2023-12-21 08:41:45,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26106 to 25629. [2023-12-21 08:41:45,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25629 states, 19909 states have (on average 1.6219800090411371) internal successors, (32292), 20658 states have internal predecessors, (32292), 4223 states have call successors, (4223), 1225 states have call predecessors, (4223), 1496 states have return successors, (5910), 4100 states have call predecessors, (5910), 4203 states have call successors, (5910) [2023-12-21 08:41:45,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25629 states to 25629 states and 42425 transitions. [2023-12-21 08:41:45,973 INFO L78 Accepts]: Start accepts. Automaton has 25629 states and 42425 transitions. Word has length 180 [2023-12-21 08:41:45,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:45,973 INFO L495 AbstractCegarLoop]: Abstraction has 25629 states and 42425 transitions. [2023-12-21 08:41:45,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 4 states have call successors, (21), 4 states have call predecessors, (21), 6 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) [2023-12-21 08:41:45,974 INFO L276 IsEmpty]: Start isEmpty. Operand 25629 states and 42425 transitions. [2023-12-21 08:41:45,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-21 08:41:45,984 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:45,984 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:41:45,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-21 08:41:46,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:46,191 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:46,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:46,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1713713153, now seen corresponding path program 1 times [2023-12-21 08:41:46,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:46,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252735405] [2023-12-21 08:41:46,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:46,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:46,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:46,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:46,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:46,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:46,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:46,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:46,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:41:46,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:46,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:46,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:46,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:46,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:46,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:46,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:46,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:46,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:46,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:41:46,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:46,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:41:46,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:46,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:41:46,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:46,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:41:46,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:46,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:41:46,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:46,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:41:46,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:46,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:41:46,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:46,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-21 08:41:46,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:46,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:46,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:46,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-21 08:41:46,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:46,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-21 08:41:46,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:46,644 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2023-12-21 08:41:46,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:46,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252735405] [2023-12-21 08:41:46,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252735405] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:46,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:41:46,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 08:41:46,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560890757] [2023-12-21 08:41:46,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:46,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 08:41:46,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:46,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 08:41:46,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-21 08:41:46,645 INFO L87 Difference]: Start difference. First operand 25629 states and 42425 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-21 08:41:57,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:57,058 INFO L93 Difference]: Finished difference Result 56794 states and 96312 transitions. [2023-12-21 08:41:57,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 08:41:57,059 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 180 [2023-12-21 08:41:57,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:57,190 INFO L225 Difference]: With dead ends: 56794 [2023-12-21 08:41:57,190 INFO L226 Difference]: Without dead ends: 32260 [2023-12-21 08:41:57,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2023-12-21 08:41:57,250 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 1351 mSDsluCounter, 905 mSDsCounter, 0 mSdLazyCounter, 2639 mSolverCounterSat, 341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1481 SdHoareTripleChecker+Valid, 1233 SdHoareTripleChecker+Invalid, 2980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 341 IncrementalHoareTripleChecker+Valid, 2639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:41:57,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1481 Valid, 1233 Invalid, 2980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [341 Valid, 2639 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-21 08:41:57,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32260 states. [2023-12-21 08:42:01,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32260 to 25675. [2023-12-21 08:42:01,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25675 states, 19955 states have (on average 1.6153846153846154) internal successors, (32235), 20704 states have internal predecessors, (32235), 4223 states have call successors, (4223), 1225 states have call predecessors, (4223), 1496 states have return successors, (5910), 4100 states have call predecessors, (5910), 4203 states have call successors, (5910) [2023-12-21 08:42:01,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25675 states to 25675 states and 42368 transitions. [2023-12-21 08:42:01,858 INFO L78 Accepts]: Start accepts. Automaton has 25675 states and 42368 transitions. Word has length 180 [2023-12-21 08:42:01,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:42:01,858 INFO L495 AbstractCegarLoop]: Abstraction has 25675 states and 42368 transitions. [2023-12-21 08:42:01,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-21 08:42:01,858 INFO L276 IsEmpty]: Start isEmpty. Operand 25675 states and 42368 transitions. [2023-12-21 08:42:01,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-12-21 08:42:01,870 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:42:01,870 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:42:01,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-21 08:42:01,870 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:42:01,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:42:01,870 INFO L85 PathProgramCache]: Analyzing trace with hash -2108696339, now seen corresponding path program 1 times [2023-12-21 08:42:01,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:42:01,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530755389] [2023-12-21 08:42:01,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:42:01,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:42:01,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:02,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:02,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:02,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:02,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:42:02,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:02,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:42:02,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:02,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:42:02,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:02,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:02,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:02,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:02,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:02,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:02,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:02,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:02,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:42:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:02,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:42:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:02,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:42:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:02,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:42:02,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:02,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:42:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:02,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:42:02,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:02,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:42:02,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:02,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-21 08:42:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:02,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:02,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-21 08:42:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:02,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-21 08:42:02,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:02,550 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2023-12-21 08:42:02,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:42:02,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530755389] [2023-12-21 08:42:02,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530755389] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:42:02,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:42:02,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 08:42:02,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241382534] [2023-12-21 08:42:02,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:42:02,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 08:42:02,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:42:02,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 08:42:02,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-21 08:42:02,551 INFO L87 Difference]: Start difference. First operand 25675 states and 42368 transitions. Second operand has 10 states, 9 states have (on average 12.333333333333334) internal successors, (111), 6 states have internal predecessors, (111), 3 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 08:42:13,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:42:13,320 INFO L93 Difference]: Finished difference Result 56539 states and 96285 transitions. [2023-12-21 08:42:13,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 08:42:13,321 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.333333333333334) internal successors, (111), 6 states have internal predecessors, (111), 3 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 186 [2023-12-21 08:42:13,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:42:13,441 INFO L225 Difference]: With dead ends: 56539 [2023-12-21 08:42:13,441 INFO L226 Difference]: Without dead ends: 30145 [2023-12-21 08:42:13,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2023-12-21 08:42:13,503 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 1019 mSDsluCounter, 1709 mSDsCounter, 0 mSdLazyCounter, 4794 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 2023 SdHoareTripleChecker+Invalid, 5000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 4794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-21 08:42:13,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1149 Valid, 2023 Invalid, 5000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 4794 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-21 08:42:13,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30145 states. [2023-12-21 08:42:17,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30145 to 23842. [2023-12-21 08:42:17,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23842 states, 18656 states have (on average 1.6394725557461407) internal successors, (30586), 19347 states have internal predecessors, (30586), 3811 states have call successors, (3811), 1165 states have call predecessors, (3811), 1374 states have return successors, (5133), 3639 states have call predecessors, (5133), 3791 states have call successors, (5133) [2023-12-21 08:42:17,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23842 states to 23842 states and 39530 transitions. [2023-12-21 08:42:17,949 INFO L78 Accepts]: Start accepts. Automaton has 23842 states and 39530 transitions. Word has length 186 [2023-12-21 08:42:17,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:42:17,950 INFO L495 AbstractCegarLoop]: Abstraction has 23842 states and 39530 transitions. [2023-12-21 08:42:17,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.333333333333334) internal successors, (111), 6 states have internal predecessors, (111), 3 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 08:42:17,950 INFO L276 IsEmpty]: Start isEmpty. Operand 23842 states and 39530 transitions. [2023-12-21 08:42:17,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2023-12-21 08:42:17,963 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:42:17,964 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:42:17,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-21 08:42:17,964 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:42:17,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:42:17,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1843072409, now seen corresponding path program 1 times [2023-12-21 08:42:17,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:42:17,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88965289] [2023-12-21 08:42:17,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:42:17,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:42:17,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:18,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:18,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:18,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:42:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:18,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:42:18,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:18,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:18,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:42:18,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:19,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:19,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:19,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:19,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:42:19,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:42:19,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:42:19,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:42:19,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:42:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:42:19,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:42:19,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 08:42:19,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:19,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-21 08:42:19,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:42:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:19,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:19,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:42:19,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:42:19,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:42:19,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:42:19,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:42:19,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:42:19,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:42:19,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 08:42:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-21 08:42:19,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:19,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:42:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:19,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:19,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:19,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:42:19,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 08:42:19,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 08:42:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 08:42:19,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 08:42:19,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 08:42:19,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 08:42:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 08:42:19,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 08:42:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-21 08:42:19,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-21 08:42:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:19,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2023-12-21 08:42:19,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:42:19,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2023-12-21 08:42:19,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2023-12-21 08:42:19,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:19,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2023-12-21 08:42:19,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2023-12-21 08:42:19,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,276 INFO L134 CoverageAnalysis]: Checked inductivity of 1403 backedges. 81 proven. 153 refuted. 0 times theorem prover too weak. 1169 trivial. 0 not checked. [2023-12-21 08:42:19,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:42:19,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88965289] [2023-12-21 08:42:19,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88965289] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:42:19,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105343273] [2023-12-21 08:42:19,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:42:19,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:42:19,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:42:19,279 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:42:19,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-21 08:42:19,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:19,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 4044 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:42:19,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:42:19,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1403 backedges. 651 proven. 0 refuted. 0 times theorem prover too weak. 752 trivial. 0 not checked. [2023-12-21 08:42:19,881 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:42:19,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105343273] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:42:19,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:42:19,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 20 [2023-12-21 08:42:19,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512720209] [2023-12-21 08:42:19,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:42:19,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:42:19,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:42:19,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:42:19,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2023-12-21 08:42:19,884 INFO L87 Difference]: Start difference. First operand 23842 states and 39530 transitions. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-12-21 08:42:24,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:42:24,493 INFO L93 Difference]: Finished difference Result 47431 states and 79450 transitions. [2023-12-21 08:42:24,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:42:24,494 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 529 [2023-12-21 08:42:24,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:42:24,572 INFO L225 Difference]: With dead ends: 47431 [2023-12-21 08:42:24,572 INFO L226 Difference]: Without dead ends: 24112 [2023-12-21 08:42:24,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 668 GetRequests, 649 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2023-12-21 08:42:24,630 INFO L413 NwaCegarLoop]: 815 mSDtfsCounter, 38 mSDsluCounter, 1605 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 2420 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:42:24,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 2420 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:42:24,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24112 states. [2023-12-21 08:42:28,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24112 to 24112. [2023-12-21 08:42:28,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24112 states, 18896 states have (on average 1.6408763759525826) internal successors, (31006), 19587 states have internal predecessors, (31006), 3811 states have call successors, (3811), 1195 states have call predecessors, (3811), 1404 states have return successors, (5133), 3639 states have call predecessors, (5133), 3791 states have call successors, (5133) [2023-12-21 08:42:28,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24112 states to 24112 states and 39950 transitions. [2023-12-21 08:42:28,975 INFO L78 Accepts]: Start accepts. Automaton has 24112 states and 39950 transitions. Word has length 529 [2023-12-21 08:42:28,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:42:28,976 INFO L495 AbstractCegarLoop]: Abstraction has 24112 states and 39950 transitions. [2023-12-21 08:42:28,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-12-21 08:42:28,976 INFO L276 IsEmpty]: Start isEmpty. Operand 24112 states and 39950 transitions. [2023-12-21 08:42:28,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2023-12-21 08:42:28,990 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:42:28,990 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:42:29,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-21 08:42:29,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-12-21 08:42:29,199 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:42:29,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:42:29,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1564129841, now seen corresponding path program 1 times [2023-12-21 08:42:29,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:42:29,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757492989] [2023-12-21 08:42:29,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:42:29,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:42:29,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:29,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:29,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:29,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:29,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:29,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:42:29,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:29,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:42:29,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:29,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:29,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:42:29,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:30,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:30,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:30,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:42:30,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:42:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:42:30,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:42:30,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:42:30,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:42:30,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:42:30,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 08:42:30,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-21 08:42:30,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:42:30,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:30,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:30,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:30,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:30,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:42:30,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:42:30,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:42:30,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:42:30,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:42:30,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:42:30,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:42:30,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 08:42:30,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:30,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-21 08:42:30,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:30,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:42:30,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:30,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:30,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:30,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 08:42:30,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 08:42:30,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 08:42:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 08:42:30,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:42:30,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:42:30,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-21 08:42:30,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-21 08:42:30,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-21 08:42:30,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 08:42:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-21 08:42:30,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2023-12-21 08:42:30,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:30,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:42:30,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 497 [2023-12-21 08:42:30,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2023-12-21 08:42:30,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2023-12-21 08:42:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2023-12-21 08:42:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1403 backedges. 83 proven. 152 refuted. 0 times theorem prover too weak. 1168 trivial. 0 not checked. [2023-12-21 08:42:30,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:42:30,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757492989] [2023-12-21 08:42:30,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757492989] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:42:30,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265488785] [2023-12-21 08:42:30,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:42:30,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:42:30,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:42:30,260 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:42:30,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-21 08:42:30,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:30,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 4045 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:42:30,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:42:30,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1403 backedges. 653 proven. 0 refuted. 0 times theorem prover too weak. 750 trivial. 0 not checked. [2023-12-21 08:42:30,878 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:42:30,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265488785] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:42:30,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:42:30,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 20 [2023-12-21 08:42:30,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406034885] [2023-12-21 08:42:30,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:42:30,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:42:30,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:42:30,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:42:30,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2023-12-21 08:42:30,880 INFO L87 Difference]: Start difference. First operand 24112 states and 39950 transitions. Second operand has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-12-21 08:42:35,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:42:35,566 INFO L93 Difference]: Finished difference Result 47953 states and 80154 transitions. [2023-12-21 08:42:35,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:42:35,567 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 530 [2023-12-21 08:42:35,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:42:35,649 INFO L225 Difference]: With dead ends: 47953 [2023-12-21 08:42:35,650 INFO L226 Difference]: Without dead ends: 24382 [2023-12-21 08:42:35,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 668 GetRequests, 649 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2023-12-21 08:42:35,707 INFO L413 NwaCegarLoop]: 815 mSDtfsCounter, 36 mSDsluCounter, 1605 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 2420 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:42:35,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 2420 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:42:35,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24382 states. [2023-12-21 08:42:40,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24382 to 24382. [2023-12-21 08:42:40,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24382 states, 19136 states have (on average 1.642244983277592) internal successors, (31426), 19827 states have internal predecessors, (31426), 3811 states have call successors, (3811), 1225 states have call predecessors, (3811), 1434 states have return successors, (5133), 3639 states have call predecessors, (5133), 3791 states have call successors, (5133) [2023-12-21 08:42:40,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24382 states to 24382 states and 40370 transitions. [2023-12-21 08:42:40,341 INFO L78 Accepts]: Start accepts. Automaton has 24382 states and 40370 transitions. Word has length 530 [2023-12-21 08:42:40,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:42:40,341 INFO L495 AbstractCegarLoop]: Abstraction has 24382 states and 40370 transitions. [2023-12-21 08:42:40,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-12-21 08:42:40,342 INFO L276 IsEmpty]: Start isEmpty. Operand 24382 states and 40370 transitions. [2023-12-21 08:42:40,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2023-12-21 08:42:40,355 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:42:40,356 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:42:40,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-21 08:42:40,564 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,SelfDestructingSolverStorable37 [2023-12-21 08:42:40,565 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:42:40,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:42:40,565 INFO L85 PathProgramCache]: Analyzing trace with hash 624088341, now seen corresponding path program 1 times [2023-12-21 08:42:40,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:42:40,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543774829] [2023-12-21 08:42:40,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:42:40,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:42:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:40,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:40,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:40,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:40,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:40,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:42:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:42:41,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:42:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:41,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:41,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:42:41,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:42:41,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:42:41,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:42:41,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:42:41,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:42:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:42:41,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 08:42:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-21 08:42:41,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:42:41,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:41,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:41,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:42:41,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:42:41,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:42:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:42:41,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:42:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:42:41,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:42:41,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 08:42:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-21 08:42:41,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:42:41,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:41,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:41,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:42:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 08:42:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 08:42:41,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 08:42:41,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 08:42:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 08:42:41,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 08:42:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-21 08:42:41,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 08:42:41,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 08:42:41,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-21 08:42:41,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2023-12-21 08:42:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:42:41,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2023-12-21 08:42:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 505 [2023-12-21 08:42:41,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 520 [2023-12-21 08:42:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 525 [2023-12-21 08:42:41,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,845 INFO L134 CoverageAnalysis]: Checked inductivity of 1403 backedges. 114 proven. 154 refuted. 0 times theorem prover too weak. 1135 trivial. 0 not checked. [2023-12-21 08:42:41,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:42:41,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543774829] [2023-12-21 08:42:41,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543774829] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:42:41,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383130749] [2023-12-21 08:42:41,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:42:41,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:42:41,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:42:41,847 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:42:41,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-21 08:42:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:42,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 4046 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-21 08:42:42,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:42:42,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1403 backedges. 671 proven. 0 refuted. 0 times theorem prover too weak. 732 trivial. 0 not checked. [2023-12-21 08:42:42,842 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:42:42,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383130749] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:42:42,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:42:42,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [21] total 27 [2023-12-21 08:42:42,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661005958] [2023-12-21 08:42:42,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:42:42,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 08:42:42,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:42:42,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 08:42:42,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=623, Unknown=0, NotChecked=0, Total=702 [2023-12-21 08:42:42,844 INFO L87 Difference]: Start difference. First operand 24382 states and 40370 transitions. Second operand has 9 states, 9 states have (on average 23.555555555555557) internal successors, (212), 8 states have internal predecessors, (212), 6 states have call successors, (42), 5 states have call predecessors, (42), 7 states have return successors, (41), 7 states have call predecessors, (41), 6 states have call successors, (41) [2023-12-21 08:42:53,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:42:53,986 INFO L93 Difference]: Finished difference Result 61282 states and 103816 transitions. [2023-12-21 08:42:53,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 08:42:53,987 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 23.555555555555557) internal successors, (212), 8 states have internal predecessors, (212), 6 states have call successors, (42), 5 states have call predecessors, (42), 7 states have return successors, (41), 7 states have call predecessors, (41), 6 states have call successors, (41) Word has length 531 [2023-12-21 08:42:53,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:42:54,179 INFO L225 Difference]: With dead ends: 61282 [2023-12-21 08:42:54,179 INFO L226 Difference]: Without dead ends: 40723 [2023-12-21 08:42:54,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 685 GetRequests, 652 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=131, Invalid=1059, Unknown=0, NotChecked=0, Total=1190 [2023-12-21 08:42:54,257 INFO L413 NwaCegarLoop]: 560 mSDtfsCounter, 3056 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 7394 mSolverCounterSat, 997 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3275 SdHoareTripleChecker+Valid, 2367 SdHoareTripleChecker+Invalid, 8391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 997 IncrementalHoareTripleChecker+Valid, 7394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-21 08:42:54,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3275 Valid, 2367 Invalid, 8391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [997 Valid, 7394 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-21 08:42:54,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40723 states. [2023-12-21 08:43:01,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40723 to 36275. [2023-12-21 08:43:01,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36275 states, 28001 states have (on average 1.6362629906074784) internal successors, (45817), 29124 states have internal predecessors, (45817), 6145 states have call successors, (6145), 1791 states have call predecessors, (6145), 2128 states have return successors, (9022), 5973 states have call predecessors, (9022), 6115 states have call successors, (9022) [2023-12-21 08:43:01,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36275 states to 36275 states and 60984 transitions. [2023-12-21 08:43:01,401 INFO L78 Accepts]: Start accepts. Automaton has 36275 states and 60984 transitions. Word has length 531 [2023-12-21 08:43:01,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:43:01,401 INFO L495 AbstractCegarLoop]: Abstraction has 36275 states and 60984 transitions. [2023-12-21 08:43:01,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 23.555555555555557) internal successors, (212), 8 states have internal predecessors, (212), 6 states have call successors, (42), 5 states have call predecessors, (42), 7 states have return successors, (41), 7 states have call predecessors, (41), 6 states have call successors, (41) [2023-12-21 08:43:01,401 INFO L276 IsEmpty]: Start isEmpty. Operand 36275 states and 60984 transitions. [2023-12-21 08:43:01,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2023-12-21 08:43:01,420 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:43:01,420 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:43:01,430 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-12-21 08:43:01,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-12-21 08:43:01,630 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:43:01,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:43:01,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1219708899, now seen corresponding path program 1 times [2023-12-21 08:43:01,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:43:01,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407428321] [2023-12-21 08:43:01,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:43:01,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:43:01,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:43:02,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:02,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:43:02,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:43:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:43:02,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:02,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:02,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:43:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:43:02,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:43:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:43:02,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:43:02,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:43:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:43:02,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:43:02,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:43:02,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 08:43:02,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:02,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-21 08:43:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:02,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:43:02,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:02,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:02,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:43:02,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:43:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:43:02,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:43:02,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:43:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:43:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:43:02,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:43:02,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:43:02,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 08:43:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:02,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-21 08:43:02,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:43:02,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:02,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:02,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:43:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:43:02,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 08:43:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:43:02,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 08:43:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 08:43:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 08:43:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 08:43:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 08:43:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-21 08:43:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 08:43:02,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 08:43:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-21 08:43:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2023-12-21 08:43:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:02,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:43:02,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2023-12-21 08:43:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 505 [2023-12-21 08:43:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:02,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 520 [2023-12-21 08:43:02,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 525 [2023-12-21 08:43:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:02,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1403 backedges. 83 proven. 152 refuted. 0 times theorem prover too weak. 1168 trivial. 0 not checked. [2023-12-21 08:43:02,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:43:02,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407428321] [2023-12-21 08:43:02,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407428321] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:43:02,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753273267] [2023-12-21 08:43:02,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:43:02,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:43:02,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:43:02,797 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:43:02,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-21 08:43:03,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 4046 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:43:03,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:43:03,437 INFO L134 CoverageAnalysis]: Checked inductivity of 1403 backedges. 653 proven. 0 refuted. 0 times theorem prover too weak. 750 trivial. 0 not checked. [2023-12-21 08:43:03,437 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:43:03,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753273267] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:43:03,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:43:03,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 20 [2023-12-21 08:43:03,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122477241] [2023-12-21 08:43:03,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:43:03,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:43:03,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:43:03,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:43:03,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2023-12-21 08:43:03,439 INFO L87 Difference]: Start difference. First operand 36275 states and 60984 transitions. Second operand has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-12-21 08:43:10,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:43:10,723 INFO L93 Difference]: Finished difference Result 72152 states and 122293 transitions. [2023-12-21 08:43:10,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:43:10,723 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 531 [2023-12-21 08:43:10,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:43:10,857 INFO L225 Difference]: With dead ends: 72152 [2023-12-21 08:43:10,857 INFO L226 Difference]: Without dead ends: 36755 [2023-12-21 08:43:10,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 669 GetRequests, 650 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2023-12-21 08:43:10,964 INFO L413 NwaCegarLoop]: 815 mSDtfsCounter, 34 mSDsluCounter, 1605 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 2420 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:43:10,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 2420 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:43:10,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36755 states. [2023-12-21 08:43:17,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36755 to 36671. [2023-12-21 08:43:17,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36671 states, 28353 states have (on average 1.6376750255704864) internal successors, (46433), 29476 states have internal predecessors, (46433), 6145 states have call successors, (6145), 1835 states have call predecessors, (6145), 2172 states have return successors, (8470), 5973 states have call predecessors, (8470), 6115 states have call successors, (8470) [2023-12-21 08:43:17,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36671 states to 36671 states and 61048 transitions. [2023-12-21 08:43:17,937 INFO L78 Accepts]: Start accepts. Automaton has 36671 states and 61048 transitions. Word has length 531 [2023-12-21 08:43:17,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:43:17,937 INFO L495 AbstractCegarLoop]: Abstraction has 36671 states and 61048 transitions. [2023-12-21 08:43:17,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-12-21 08:43:17,937 INFO L276 IsEmpty]: Start isEmpty. Operand 36671 states and 61048 transitions. [2023-12-21 08:43:17,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2023-12-21 08:43:17,955 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:43:17,955 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:43:17,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-12-21 08:43:18,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-12-21 08:43:18,165 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:43:18,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:43:18,165 INFO L85 PathProgramCache]: Analyzing trace with hash 493716001, now seen corresponding path program 1 times [2023-12-21 08:43:18,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:43:18,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289492125] [2023-12-21 08:43:18,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:43:18,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:43:18,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:18,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:43:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:18,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:18,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:18,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:43:18,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:18,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:43:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:18,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:18,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:43:19,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:19,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:19,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:43:19,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:43:19,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:43:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:43:19,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:43:19,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:43:19,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:43:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:43:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:43:19,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 08:43:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:19,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-21 08:43:19,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:43:19,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:19,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:19,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:43:19,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:43:19,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:43:19,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:43:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:43:19,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:43:19,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:43:19,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:43:19,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:43:19,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 08:43:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-21 08:43:19,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:19,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:43:19,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:19,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:43:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:43:19,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 08:43:19,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 08:43:19,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 08:43:19,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 08:43:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:43:19,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:43:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-21 08:43:19,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-21 08:43:19,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-21 08:43:19,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 08:43:19,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-21 08:43:19,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:19,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2023-12-21 08:43:19,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:19,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:43:19,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 497 [2023-12-21 08:43:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2023-12-21 08:43:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:19,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2023-12-21 08:43:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2023-12-21 08:43:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1403 backedges. 87 proven. 150 refuted. 0 times theorem prover too weak. 1166 trivial. 0 not checked. [2023-12-21 08:43:19,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:43:19,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289492125] [2023-12-21 08:43:19,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289492125] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:43:19,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073349872] [2023-12-21 08:43:19,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:43:19,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:43:19,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:43:19,353 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:43:19,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-21 08:43:19,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:19,946 INFO L262 TraceCheckSpWp]: Trace formula consists of 4045 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-21 08:43:19,952 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:43:19,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1403 backedges. 657 proven. 0 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2023-12-21 08:43:19,986 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:43:19,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073349872] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:43:19,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:43:19,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 20 [2023-12-21 08:43:19,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093862148] [2023-12-21 08:43:19,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:43:19,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:43:19,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:43:19,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:43:19,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2023-12-21 08:43:19,987 INFO L87 Difference]: Start difference. First operand 36671 states and 61048 transitions. Second operand has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2023-12-21 08:43:27,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:43:27,105 INFO L93 Difference]: Finished difference Result 57999 states and 97240 transitions. [2023-12-21 08:43:27,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:43:27,106 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 530 [2023-12-21 08:43:27,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:43:27,229 INFO L225 Difference]: With dead ends: 57999 [2023-12-21 08:43:27,229 INFO L226 Difference]: Without dead ends: 36924 [2023-12-21 08:43:27,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 669 GetRequests, 650 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2023-12-21 08:43:27,296 INFO L413 NwaCegarLoop]: 826 mSDtfsCounter, 36 mSDsluCounter, 1638 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 2464 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:43:27,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 2464 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:43:27,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36924 states. [2023-12-21 08:43:34,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36924 to 36924. [2023-12-21 08:43:34,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36924 states, 28560 states have (on average 1.6378151260504201) internal successors, (46776), 29683 states have internal predecessors, (46776), 6168 states have call successors, (6168), 1858 states have call predecessors, (6168), 2195 states have return successors, (8493), 5996 states have call predecessors, (8493), 6138 states have call successors, (8493) [2023-12-21 08:43:34,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36924 states to 36924 states and 61437 transitions. [2023-12-21 08:43:34,730 INFO L78 Accepts]: Start accepts. Automaton has 36924 states and 61437 transitions. Word has length 530 [2023-12-21 08:43:34,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:43:34,730 INFO L495 AbstractCegarLoop]: Abstraction has 36924 states and 61437 transitions. [2023-12-21 08:43:34,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2023-12-21 08:43:34,731 INFO L276 IsEmpty]: Start isEmpty. Operand 36924 states and 61437 transitions. [2023-12-21 08:43:34,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2023-12-21 08:43:34,749 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:43:34,749 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:43:34,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-12-21 08:43:34,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:43:34,958 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:43:34,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:43:34,958 INFO L85 PathProgramCache]: Analyzing trace with hash -2002243047, now seen corresponding path program 1 times [2023-12-21 08:43:34,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:43:34,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396242632] [2023-12-21 08:43:34,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:43:34,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:43:34,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:43:35,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:35,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:43:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:43:35,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:35,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:43:35,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:35,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:43:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:43:35,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:43:35,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:43:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:43:35,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:43:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:43:35,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:43:35,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:43:35,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 08:43:35,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:35,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-21 08:43:35,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:43:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:35,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:43:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:43:35,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:43:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:43:35,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:43:35,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:43:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:43:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:43:35,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:43:35,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 08:43:35,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:35,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:35,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-21 08:43:35,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:36,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:36,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:36,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:43:36,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:36,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:36,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:36,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:36,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:36,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:43:36,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:36,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:43:36,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:36,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:43:36,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:36,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 08:43:36,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:36,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 08:43:36,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:36,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 08:43:36,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:36,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 08:43:36,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:36,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 08:43:36,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:36,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 08:43:36,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:36,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 08:43:36,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:36,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 08:43:36,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:36,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-21 08:43:36,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:36,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-21 08:43:36,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:36,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:36,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:36,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2023-12-21 08:43:36,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:36,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:36,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:36,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:43:36,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:36,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2023-12-21 08:43:36,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:36,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2023-12-21 08:43:36,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:36,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:36,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:36,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2023-12-21 08:43:36,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:36,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2023-12-21 08:43:36,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:36,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1403 backedges. 157 proven. 143 refuted. 0 times theorem prover too weak. 1103 trivial. 0 not checked. [2023-12-21 08:43:36,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:43:36,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396242632] [2023-12-21 08:43:36,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396242632] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:43:36,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815630657] [2023-12-21 08:43:36,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:43:36,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:43:36,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:43:36,122 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:43:36,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-21 08:43:36,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:36,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 4044 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-21 08:43:36,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:43:37,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1403 backedges. 194 proven. 15 refuted. 0 times theorem prover too weak. 1194 trivial. 0 not checked. [2023-12-21 08:43:37,523 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 08:43:38,701 INFO L134 CoverageAnalysis]: Checked inductivity of 1403 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 1304 trivial. 0 not checked. [2023-12-21 08:43:38,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815630657] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 08:43:38,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-21 08:43:38,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16, 8] total 29 [2023-12-21 08:43:38,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733115420] [2023-12-21 08:43:38,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:43:38,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 08:43:38,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:43:38,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 08:43:38,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=708, Unknown=0, NotChecked=0, Total=812 [2023-12-21 08:43:38,704 INFO L87 Difference]: Start difference. First operand 36924 states and 61437 transitions. Second operand has 8 states, 8 states have (on average 20.875) internal successors, (167), 7 states have internal predecessors, (167), 6 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (39), 7 states have call predecessors, (39), 6 states have call successors, (39) [2023-12-21 08:43:48,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:43:48,916 INFO L93 Difference]: Finished difference Result 64110 states and 107484 transitions. [2023-12-21 08:43:48,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 08:43:48,916 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.875) internal successors, (167), 7 states have internal predecessors, (167), 6 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (39), 7 states have call predecessors, (39), 6 states have call successors, (39) Word has length 529 [2023-12-21 08:43:48,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:43:49,110 INFO L225 Difference]: With dead ends: 64110 [2023-12-21 08:43:49,111 INFO L226 Difference]: Without dead ends: 48707 [2023-12-21 08:43:49,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1201 GetRequests, 1169 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=123, Invalid=869, Unknown=0, NotChecked=0, Total=992 [2023-12-21 08:43:49,172 INFO L413 NwaCegarLoop]: 856 mSDtfsCounter, 2979 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 1605 mSolverCounterSat, 627 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2995 SdHoareTripleChecker+Valid, 1896 SdHoareTripleChecker+Invalid, 2232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 627 IncrementalHoareTripleChecker+Valid, 1605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:43:49,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2995 Valid, 1896 Invalid, 2232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [627 Valid, 1605 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 08:43:49,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48707 states. [2023-12-21 08:43:57,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48707 to 48282. [2023-12-21 08:43:57,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48282 states, 37550 states have (on average 1.644127829560586) internal successors, (61737), 38914 states have internal predecessors, (61737), 7979 states have call successors, (7979), 2380 states have call predecessors, (7979), 2752 states have return successors, (10981), 7545 states have call predecessors, (10981), 7939 states have call successors, (10981) [2023-12-21 08:43:58,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48282 states to 48282 states and 80697 transitions. [2023-12-21 08:43:58,196 INFO L78 Accepts]: Start accepts. Automaton has 48282 states and 80697 transitions. Word has length 529 [2023-12-21 08:43:58,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:43:58,197 INFO L495 AbstractCegarLoop]: Abstraction has 48282 states and 80697 transitions. [2023-12-21 08:43:58,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.875) internal successors, (167), 7 states have internal predecessors, (167), 6 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (39), 7 states have call predecessors, (39), 6 states have call successors, (39) [2023-12-21 08:43:58,197 INFO L276 IsEmpty]: Start isEmpty. Operand 48282 states and 80697 transitions. [2023-12-21 08:43:58,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2023-12-21 08:43:58,220 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:43:58,220 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:43:58,231 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-12-21 08:43:58,426 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,SelfDestructingSolverStorable41 [2023-12-21 08:43:58,427 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:43:58,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:43:58,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1194860377, now seen corresponding path program 1 times [2023-12-21 08:43:58,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:43:58,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491508088] [2023-12-21 08:43:58,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:43:58,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:43:58,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:58,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:43:58,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:58,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:58,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:58,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:43:58,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:43:59,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:59,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:43:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:59,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:43:59,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:43:59,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:43:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:43:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:43:59,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:43:59,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:43:59,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:43:59,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:43:59,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 08:43:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:59,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-21 08:43:59,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:59,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:43:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:43:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:43:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:43:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:43:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:43:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:43:59,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:43:59,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:43:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:43:59,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 08:43:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:59,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-21 08:43:59,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:59,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:43:59,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:59,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:59,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:43:59,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:43:59,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:43:59,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:43:59,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:43:59,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 08:43:59,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 08:43:59,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 08:43:59,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 08:43:59,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 08:43:59,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 08:43:59,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-21 08:43:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 08:43:59,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-21 08:43:59,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 08:43:59,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-21 08:43:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:59,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2023-12-21 08:43:59,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:59,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:43:59,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2023-12-21 08:43:59,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2023-12-21 08:43:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:59,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2023-12-21 08:43:59,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 539 [2023-12-21 08:43:59,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:59,714 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 65 proven. 161 refuted. 0 times theorem prover too weak. 1189 trivial. 0 not checked. [2023-12-21 08:43:59,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:43:59,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491508088] [2023-12-21 08:43:59,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491508088] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:43:59,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140908104] [2023-12-21 08:43:59,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:43:59,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:43:59,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:43:59,715 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:43:59,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-21 08:44:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:00,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 4259 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:44:00,376 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:44:00,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 559 proven. 0 refuted. 0 times theorem prover too weak. 856 trivial. 0 not checked. [2023-12-21 08:44:00,411 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:44:00,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140908104] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:44:00,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:44:00,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [19] total 21 [2023-12-21 08:44:00,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134458590] [2023-12-21 08:44:00,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:44:00,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:44:00,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:44:00,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:44:00,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2023-12-21 08:44:00,413 INFO L87 Difference]: Start difference. First operand 48282 states and 80697 transitions. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2023-12-21 08:44:10,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:44:10,223 INFO L93 Difference]: Finished difference Result 81711 states and 137876 transitions. [2023-12-21 08:44:10,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:44:10,224 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 545 [2023-12-21 08:44:10,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:44:10,426 INFO L225 Difference]: With dead ends: 81711 [2023-12-21 08:44:10,426 INFO L226 Difference]: Without dead ends: 49998 [2023-12-21 08:44:10,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 690 GetRequests, 670 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2023-12-21 08:44:10,536 INFO L413 NwaCegarLoop]: 773 mSDtfsCounter, 210 mSDsluCounter, 1521 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2294 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:44:10,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 2294 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:44:10,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49998 states. [2023-12-21 08:44:19,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49998 to 49998. [2023-12-21 08:44:19,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49998 states, 39178 states have (on average 1.6534789933125733) internal successors, (64780), 40542 states have internal predecessors, (64780), 8023 states have call successors, (8023), 2424 states have call predecessors, (8023), 2796 states have return successors, (11025), 7589 states have call predecessors, (11025), 7983 states have call successors, (11025) [2023-12-21 08:44:19,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49998 states to 49998 states and 83828 transitions. [2023-12-21 08:44:19,952 INFO L78 Accepts]: Start accepts. Automaton has 49998 states and 83828 transitions. Word has length 545 [2023-12-21 08:44:19,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:44:19,953 INFO L495 AbstractCegarLoop]: Abstraction has 49998 states and 83828 transitions. [2023-12-21 08:44:19,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2023-12-21 08:44:19,953 INFO L276 IsEmpty]: Start isEmpty. Operand 49998 states and 83828 transitions. [2023-12-21 08:44:19,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2023-12-21 08:44:19,982 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:44:19,982 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:44:19,992 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-12-21 08:44:20,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:44:20,192 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:44:20,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:44:20,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1751989431, now seen corresponding path program 1 times [2023-12-21 08:44:20,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:44:20,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066727586] [2023-12-21 08:44:20,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:44:20,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:44:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:20,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:44:20,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:20,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:20,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:20,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:44:20,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:20,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:44:20,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:20,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:20,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:44:21,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:21,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:44:21,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:44:21,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:44:21,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:44:21,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:44:21,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:44:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:44:21,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:44:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:44:21,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 08:44:21,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:21,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-21 08:44:21,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:21,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:44:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:21,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:21,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:44:21,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:44:21,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:44:21,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:44:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:44:21,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:44:21,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:44:21,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:44:21,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:44:21,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 08:44:21,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:21,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-21 08:44:21,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:21,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:44:21,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:21,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:21,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:44:21,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:44:21,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:44:21,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:44:21,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:44:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:44:21,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 08:44:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 08:44:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 08:44:21,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 08:44:21,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 08:44:21,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-21 08:44:21,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-21 08:44:21,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-21 08:44:21,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-21 08:44:21,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-21 08:44:21,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:21,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2023-12-21 08:44:21,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:21,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:44:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2023-12-21 08:44:21,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2023-12-21 08:44:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:21,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 536 [2023-12-21 08:44:21,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 541 [2023-12-21 08:44:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:21,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 59 proven. 164 refuted. 0 times theorem prover too weak. 1192 trivial. 0 not checked. [2023-12-21 08:44:21,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:44:21,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066727586] [2023-12-21 08:44:21,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066727586] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:44:21,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658300178] [2023-12-21 08:44:21,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:44:21,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:44:21,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:44:21,439 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:44:21,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-12-21 08:44:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:22,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 4261 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:44:22,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:44:22,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 491 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-12-21 08:44:22,249 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:44:22,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658300178] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:44:22,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:44:22,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [19] total 21 [2023-12-21 08:44:22,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146322820] [2023-12-21 08:44:22,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:44:22,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:44:22,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:44:22,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:44:22,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2023-12-21 08:44:22,251 INFO L87 Difference]: Start difference. First operand 49998 states and 83828 transitions. Second operand has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2023-12-21 08:44:31,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:44:31,507 INFO L93 Difference]: Finished difference Result 84699 states and 143119 transitions. [2023-12-21 08:44:31,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:44:31,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 547 [2023-12-21 08:44:31,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:44:31,714 INFO L225 Difference]: With dead ends: 84699 [2023-12-21 08:44:31,714 INFO L226 Difference]: Without dead ends: 52689 [2023-12-21 08:44:31,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 692 GetRequests, 672 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2023-12-21 08:44:31,831 INFO L413 NwaCegarLoop]: 773 mSDtfsCounter, 208 mSDsluCounter, 1521 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2294 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:44:31,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 2294 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:44:31,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52689 states. [2023-12-21 08:44:40,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52689 to 52689. [2023-12-21 08:44:40,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52689 states, 41731 states have (on average 1.6683760274136732) internal successors, (69623), 43095 states have internal predecessors, (69623), 8092 states have call successors, (8092), 2493 states have call predecessors, (8092), 2865 states have return successors, (11094), 7658 states have call predecessors, (11094), 8052 states have call successors, (11094) [2023-12-21 08:44:41,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52689 states to 52689 states and 88809 transitions. [2023-12-21 08:44:41,091 INFO L78 Accepts]: Start accepts. Automaton has 52689 states and 88809 transitions. Word has length 547 [2023-12-21 08:44:41,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:44:41,091 INFO L495 AbstractCegarLoop]: Abstraction has 52689 states and 88809 transitions. [2023-12-21 08:44:41,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2023-12-21 08:44:41,091 INFO L276 IsEmpty]: Start isEmpty. Operand 52689 states and 88809 transitions. [2023-12-21 08:44:41,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2023-12-21 08:44:41,117 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:44:41,118 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:44:41,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-12-21 08:44:41,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:44:41,319 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:44:41,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:44:41,319 INFO L85 PathProgramCache]: Analyzing trace with hash -912733955, now seen corresponding path program 1 times [2023-12-21 08:44:41,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:44:41,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313732006] [2023-12-21 08:44:41,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:44:41,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:44:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:41,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:44:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:41,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:41,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:41,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:44:41,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:41,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:44:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:41,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:44:42,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:42,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:44:42,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:44:42,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:44:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:44:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:44:42,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:44:42,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:44:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:44:42,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:44:42,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 08:44:42,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:42,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-21 08:44:42,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:42,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:44:42,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:42,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:44:42,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:44:42,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:44:42,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:44:42,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:44:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:44:42,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:44:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:44:42,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:44:42,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 08:44:42,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:42,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-21 08:44:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:44:42,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:42,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:42,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:44:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:44:42,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:44:42,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:44:42,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:44:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:44:42,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:44:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:44:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 08:44:42,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-21 08:44:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 08:44:42,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 08:44:42,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 08:44:42,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-21 08:44:42,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-21 08:44:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-21 08:44:42,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2023-12-21 08:44:42,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:42,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:44:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2023-12-21 08:44:42,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2023-12-21 08:44:42,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:42,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2023-12-21 08:44:42,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2023-12-21 08:44:42,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,521 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 157 proven. 143 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2023-12-21 08:44:42,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:44:42,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313732006] [2023-12-21 08:44:42,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313732006] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:44:42,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361978937] [2023-12-21 08:44:42,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:44:42,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:44:42,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:44:42,523 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:44:42,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-12-21 08:44:43,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:43,162 INFO L262 TraceCheckSpWp]: Trace formula consists of 4263 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:44:43,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:44:43,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 326 proven. 0 refuted. 0 times theorem prover too weak. 1089 trivial. 0 not checked. [2023-12-21 08:44:43,211 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:44:43,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361978937] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:44:43,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:44:43,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [17] total 19 [2023-12-21 08:44:43,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312855535] [2023-12-21 08:44:43,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:44:43,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:44:43,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:44:43,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:44:43,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2023-12-21 08:44:43,213 INFO L87 Difference]: Start difference. First operand 52689 states and 88809 transitions. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2023-12-21 08:44:52,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:44:52,666 INFO L93 Difference]: Finished difference Result 88551 states and 150085 transitions. [2023-12-21 08:44:52,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:44:52,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 549 [2023-12-21 08:44:52,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:44:52,869 INFO L225 Difference]: With dead ends: 88551 [2023-12-21 08:44:52,869 INFO L226 Difference]: Without dead ends: 55380 [2023-12-21 08:44:52,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 697 GetRequests, 679 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2023-12-21 08:44:52,983 INFO L413 NwaCegarLoop]: 773 mSDtfsCounter, 206 mSDsluCounter, 1521 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2294 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:44:52,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 2294 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:44:53,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55380 states. [2023-12-21 08:45:02,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55380 to 55380. [2023-12-21 08:45:02,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55380 states, 44284 states have (on average 1.6815554150483245) internal successors, (74466), 45648 states have internal predecessors, (74466), 8161 states have call successors, (8161), 2562 states have call predecessors, (8161), 2934 states have return successors, (11163), 7727 states have call predecessors, (11163), 8121 states have call successors, (11163) [2023-12-21 08:45:02,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55380 states to 55380 states and 93790 transitions. [2023-12-21 08:45:02,459 INFO L78 Accepts]: Start accepts. Automaton has 55380 states and 93790 transitions. Word has length 549 [2023-12-21 08:45:02,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:45:02,459 INFO L495 AbstractCegarLoop]: Abstraction has 55380 states and 93790 transitions. [2023-12-21 08:45:02,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2023-12-21 08:45:02,459 INFO L276 IsEmpty]: Start isEmpty. Operand 55380 states and 93790 transitions. [2023-12-21 08:45:02,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2023-12-21 08:45:02,486 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:45:02,486 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:45:02,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-12-21 08:45:02,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:45:02,697 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:45:02,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:45:02,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1803811828, now seen corresponding path program 1 times [2023-12-21 08:45:02,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:45:02,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456015763] [2023-12-21 08:45:02,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:45:02,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:45:02,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:45:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:45:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:45:03,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:45:03,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:45:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:45:03,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:45:03,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:45:03,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:45:03,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:45:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:45:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:45:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:45:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 08:45:03,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:03,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-21 08:45:03,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:03,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:45:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:03,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:45:03,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:45:03,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:45:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:45:03,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:45:03,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:45:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:45:03,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:45:03,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:45:03,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 08:45:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:03,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-21 08:45:03,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:45:03,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:03,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:03,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:45:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:45:03,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:45:03,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:45:03,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:45:03,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 08:45:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 08:45:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:45:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 08:45:03,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 08:45:03,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 08:45:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:45:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-21 08:45:03,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-21 08:45:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-21 08:45:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-21 08:45:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2023-12-21 08:45:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:45:03,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 513 [2023-12-21 08:45:03,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 520 [2023-12-21 08:45:03,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:03,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2023-12-21 08:45:03,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2023-12-21 08:45:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:03,917 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 65 proven. 161 refuted. 0 times theorem prover too weak. 1189 trivial. 0 not checked. [2023-12-21 08:45:03,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:45:03,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456015763] [2023-12-21 08:45:03,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456015763] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:45:03,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693477757] [2023-12-21 08:45:03,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:45:03,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:45:03,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:45:03,919 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:45:03,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-12-21 08:45:04,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:04,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 4260 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-21 08:45:04,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:45:04,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 559 proven. 0 refuted. 0 times theorem prover too weak. 856 trivial. 0 not checked. [2023-12-21 08:45:04,589 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:45:04,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693477757] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:45:04,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:45:04,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [19] total 21 [2023-12-21 08:45:04,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691314550] [2023-12-21 08:45:04,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:45:04,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:45:04,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:45:04,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:45:04,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2023-12-21 08:45:04,592 INFO L87 Difference]: Start difference. First operand 55380 states and 93790 transitions. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2023-12-21 08:45:14,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:45:14,452 INFO L93 Difference]: Finished difference Result 90431 states and 153771 transitions. [2023-12-21 08:45:14,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:45:14,453 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 546 [2023-12-21 08:45:14,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:45:14,686 INFO L225 Difference]: With dead ends: 90431 [2023-12-21 08:45:14,686 INFO L226 Difference]: Without dead ends: 55655 [2023-12-21 08:45:14,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 691 GetRequests, 671 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2023-12-21 08:45:14,826 INFO L413 NwaCegarLoop]: 826 mSDtfsCounter, 36 mSDsluCounter, 1638 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 2464 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:45:14,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 2464 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:45:14,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55655 states. [2023-12-21 08:45:24,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55655 to 55655. [2023-12-21 08:45:24,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55655 states, 44509 states have (on average 1.6809184659282392) internal successors, (74816), 45873 states have internal predecessors, (74816), 8186 states have call successors, (8186), 2587 states have call predecessors, (8186), 2959 states have return successors, (11188), 7752 states have call predecessors, (11188), 8146 states have call successors, (11188) [2023-12-21 08:45:24,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55655 states to 55655 states and 94190 transitions. [2023-12-21 08:45:24,764 INFO L78 Accepts]: Start accepts. Automaton has 55655 states and 94190 transitions. Word has length 546 [2023-12-21 08:45:24,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:45:24,765 INFO L495 AbstractCegarLoop]: Abstraction has 55655 states and 94190 transitions. [2023-12-21 08:45:24,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2023-12-21 08:45:24,765 INFO L276 IsEmpty]: Start isEmpty. Operand 55655 states and 94190 transitions. [2023-12-21 08:45:24,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2023-12-21 08:45:24,796 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:45:24,796 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:45:24,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-12-21 08:45:24,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:45:24,998 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:45:24,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:45:24,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1037007868, now seen corresponding path program 1 times [2023-12-21 08:45:24,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:45:24,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431333800] [2023-12-21 08:45:24,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:45:24,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:45:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:45:25,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:45:25,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:45:25,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:25,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:45:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:25,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:45:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:45:25,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:45:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:45:25,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:45:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:45:25,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:45:25,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:45:25,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:45:25,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 08:45:25,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:25,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-21 08:45:25,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:45:25,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:25,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:25,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:45:25,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:45:25,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:45:25,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:45:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:45:25,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:45:25,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:45:25,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:45:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:45:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 08:45:25,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:25,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-21 08:45:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:45:26,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:26,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:45:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:45:26,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:45:26,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:45:26,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 08:45:26,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 08:45:26,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:45:26,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 08:45:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 08:45:26,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 08:45:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:45:26,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 08:45:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 08:45:26,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-21 08:45:26,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-21 08:45:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-21 08:45:26,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:26,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 481 [2023-12-21 08:45:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:26,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:45:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2023-12-21 08:45:26,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2023-12-21 08:45:26,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:26,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2023-12-21 08:45:26,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2023-12-21 08:45:26,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 157 proven. 143 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2023-12-21 08:45:26,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:45:26,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431333800] [2023-12-21 08:45:26,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431333800] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:45:26,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769786581] [2023-12-21 08:45:26,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:45:26,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:45:26,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:45:26,150 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:45:26,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-12-21 08:45:26,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:26,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 4258 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-21 08:45:26,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:45:27,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 110 proven. 81 refuted. 0 times theorem prover too weak. 1224 trivial. 0 not checked. [2023-12-21 08:45:27,706 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 08:45:28,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 12 proven. 69 refuted. 0 times theorem prover too weak. 1334 trivial. 0 not checked. [2023-12-21 08:45:28,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769786581] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 08:45:28,582 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 08:45:28,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 8, 8] total 30 [2023-12-21 08:45:28,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296674178] [2023-12-21 08:45:28,583 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 08:45:28,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-21 08:45:28,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:45:28,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-21 08:45:28,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=757, Unknown=0, NotChecked=0, Total=870 [2023-12-21 08:45:28,586 INFO L87 Difference]: Start difference. First operand 55655 states and 94190 transitions. Second operand has 30 states, 30 states have (on average 15.266666666666667) internal successors, (458), 22 states have internal predecessors, (458), 14 states have call successors, (121), 14 states have call predecessors, (121), 16 states have return successors, (118), 18 states have call predecessors, (118), 14 states have call successors, (118)