/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 [2023-12-16 05:22:50,703 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 05:22:50,787 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 05:22:50,792 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 05:22:50,792 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 05:22:50,825 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 05:22:50,825 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 05:22:50,826 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 05:22:50,826 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 05:22:50,828 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 05:22:50,828 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 05:22:50,828 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 05:22:50,829 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 05:22:50,829 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 05:22:50,829 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 05:22:50,830 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 05:22:50,830 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 05:22:50,830 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 05:22:50,831 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 05:22:50,831 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 05:22:50,831 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 05:22:50,831 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 05:22:50,832 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 05:22:50,832 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 05:22:50,832 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 05:22:50,832 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 05:22:50,833 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 05:22:50,833 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 05:22:50,833 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 05:22:50,834 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 05:22:50,835 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 05:22:50,835 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 05:22:50,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 05:22:50,835 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 05:22:50,835 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 05:22:50,836 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 05:22:50,836 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 05:22:50,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 05:22:50,836 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 05:22:50,836 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 05:22:50,836 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 05:22:50,837 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 05:22:50,838 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 05:22:50,838 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 05:22:51,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 05:22:51,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 05:22:51,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 05:22:51,105 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 05:22:51,105 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 05:22:51,106 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product24.cil.c [2023-12-16 05:22:52,272 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 05:22:52,597 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 05:22:52,598 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product24.cil.c [2023-12-16 05:22:52,630 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84681774d/d132a9f5e0c04d539eaaf04d5df01077/FLAG0f7ec296a [2023-12-16 05:22:52,646 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84681774d/d132a9f5e0c04d539eaaf04d5df01077 [2023-12-16 05:22:52,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 05:22:52,649 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 05:22:52,651 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 05:22:52,652 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 05:22:52,656 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 05:22:52,656 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:22:52" (1/1) ... [2023-12-16 05:22:52,657 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@774089c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:52, skipping insertion in model container [2023-12-16 05:22:52,657 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:22:52" (1/1) ... [2023-12-16 05:22:52,741 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 05:22:53,171 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] [2023-12-16 05:22:53,175 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 05:22:53,192 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 05:22:53,201 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-12-16 05:22:53,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [408] [2023-12-16 05:22:53,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [422] [2023-12-16 05:22:53,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [467] [2023-12-16 05:22:53,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2112] [2023-12-16 05:22:53,204 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2773] [2023-12-16 05:22:53,204 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3139] [2023-12-16 05:22:53,204 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3174] [2023-12-16 05:22:53,204 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3292] [2023-12-16 05:22:53,205 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3383] [2023-12-16 05:22:53,300 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] [2023-12-16 05:22:53,332 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 05:22:53,360 INFO L206 MainTranslator]: Completed translation [2023-12-16 05:22:53,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:53 WrapperNode [2023-12-16 05:22:53,361 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 05:22:53,362 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 05:22:53,362 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 05:22:53,362 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 05:22:53,369 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:53" (1/1) ... [2023-12-16 05:22:53,399 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:53" (1/1) ... [2023-12-16 05:22:53,451 INFO L138 Inliner]: procedures = 95, calls = 346, calls flagged for inlining = 27, calls inlined = 23, statements flattened = 862 [2023-12-16 05:22:53,452 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 05:22:53,452 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 05:22:53,453 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 05:22:53,453 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 05:22:53,466 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:53" (1/1) ... [2023-12-16 05:22:53,466 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:53" (1/1) ... [2023-12-16 05:22:53,472 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:53" (1/1) ... [2023-12-16 05:22:53,502 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]. [2023-12-16 05:22:53,502 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:53" (1/1) ... [2023-12-16 05:22:53,503 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:53" (1/1) ... [2023-12-16 05:22:53,520 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:53" (1/1) ... [2023-12-16 05:22:53,530 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:53" (1/1) ... [2023-12-16 05:22:53,535 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:53" (1/1) ... [2023-12-16 05:22:53,540 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:53" (1/1) ... [2023-12-16 05:22:53,549 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 05:22:53,550 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 05:22:53,550 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 05:22:53,550 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 05:22:53,551 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:53" (1/1) ... [2023-12-16 05:22:53,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 05:22:53,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:22:53,582 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) [2023-12-16 05:22:53,641 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 [2023-12-16 05:22:53,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 05:22:53,649 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-12-16 05:22:53,649 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-12-16 05:22:53,649 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-16 05:22:53,649 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-16 05:22:53,649 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-16 05:22:53,649 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-16 05:22:53,650 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-16 05:22:53,650 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-16 05:22:53,650 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-16 05:22:53,650 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-16 05:22:53,650 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-16 05:22:53,651 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-16 05:22:53,651 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-12-16 05:22:53,651 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-12-16 05:22:53,651 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-16 05:22:53,651 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-16 05:22:53,652 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-16 05:22:53,654 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-16 05:22:53,654 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-16 05:22:53,654 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-16 05:22:53,655 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-12-16 05:22:53,655 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-12-16 05:22:53,655 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-16 05:22:53,655 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-16 05:22:53,655 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-16 05:22:53,655 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-16 05:22:53,655 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-16 05:22:53,655 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-16 05:22:53,655 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-16 05:22:53,655 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-16 05:22:53,655 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-16 05:22:53,656 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-16 05:22:53,656 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-16 05:22:53,656 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-16 05:22:53,656 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-16 05:22:53,656 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-16 05:22:53,656 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-16 05:22:53,656 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-16 05:22:53,656 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-16 05:22:53,656 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-16 05:22:53,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 05:22:53,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 05:22:53,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-16 05:22:53,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-16 05:22:53,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-16 05:22:53,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-16 05:22:53,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-16 05:22:53,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-16 05:22:53,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-16 05:22:53,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-16 05:22:53,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-16 05:22:53,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-16 05:22:53,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-16 05:22:53,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-16 05:22:53,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-16 05:22:53,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-16 05:22:53,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-12-16 05:22:53,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-12-16 05:22:53,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-12-16 05:22:53,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-12-16 05:22:53,658 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-12-16 05:22:53,658 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-12-16 05:22:53,658 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-16 05:22:53,659 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-16 05:22:53,659 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-16 05:22:53,660 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-16 05:22:53,660 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-16 05:22:53,660 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-16 05:22:53,661 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2023-12-16 05:22:53,661 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2023-12-16 05:22:53,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 05:22:53,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 05:22:53,661 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-16 05:22:53,661 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-16 05:22:53,661 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2023-12-16 05:22:53,661 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2023-12-16 05:22:53,882 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 05:22:53,885 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 05:22:54,899 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 05:22:54,980 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 05:22:54,980 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 05:22:54,981 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:22:54 BoogieIcfgContainer [2023-12-16 05:22:54,981 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 05:22:54,983 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 05:22:54,983 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 05:22:54,986 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 05:22:54,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:22:52" (1/3) ... [2023-12-16 05:22:54,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d86c712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:22:54, skipping insertion in model container [2023-12-16 05:22:54,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:53" (2/3) ... [2023-12-16 05:22:54,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d86c712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:22:54, skipping insertion in model container [2023-12-16 05:22:54,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:22:54" (3/3) ... [2023-12-16 05:22:54,990 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product24.cil.c [2023-12-16 05:22:55,007 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 05:22:55,007 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 05:22:55,071 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 05:22:55,078 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;@7f378d04, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 05:22:55,078 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 05:22:55,085 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) [2023-12-16 05:22:55,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-16 05:22:55,101 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:22:55,102 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] [2023-12-16 05:22:55,102 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:22:55,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:22:55,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1029410274, now seen corresponding path program 1 times [2023-12-16 05:22:55,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:22:55,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106782354] [2023-12-16 05:22:55,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:22:55,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:22:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:55,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:22:55,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:55,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:22:55,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:55,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 05:22:55,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:55,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-16 05:22:55,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:55,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-16 05:22:55,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:55,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:22:55,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:55,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-16 05:22:55,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:55,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 05:22:55,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:55,833 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 05:22:55,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:22:55,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106782354] [2023-12-16 05:22:55,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106782354] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:22:55,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:22:55,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 05:22:55,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886875437] [2023-12-16 05:22:55,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:22:55,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:22:55,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:22:55,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:22:55,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 05:22:55,883 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) [2023-12-16 05:22:59,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:22:59,295 INFO L93 Difference]: Finished difference Result 1216 states and 2045 transitions. [2023-12-16 05:22:59,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 05:22:59,297 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 [2023-12-16 05:22:59,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:22:59,314 INFO L225 Difference]: With dead ends: 1216 [2023-12-16 05:22:59,314 INFO L226 Difference]: Without dead ends: 664 [2023-12-16 05:22:59,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 05:22:59,327 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 668 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 1743 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s 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, 2.5s IncrementalHoareTripleChecker+Time [2023-12-16 05:22:59,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [751 Valid, 1470 Invalid, 1858 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [115 Valid, 1743 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-16 05:22:59,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2023-12-16 05:22:59,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 549. [2023-12-16 05:22:59,513 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) [2023-12-16 05:22:59,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 906 transitions. [2023-12-16 05:22:59,522 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 906 transitions. Word has length 52 [2023-12-16 05:22:59,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:22:59,522 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 906 transitions. [2023-12-16 05:22:59,522 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) [2023-12-16 05:22:59,523 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 906 transitions. [2023-12-16 05:22:59,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-16 05:22:59,530 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:22:59,530 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] [2023-12-16 05:22:59,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 05:22:59,531 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:22:59,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:22:59,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1908114418, now seen corresponding path program 1 times [2023-12-16 05:22:59,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:22:59,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110420357] [2023-12-16 05:22:59,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:22:59,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:22:59,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:59,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:22:59,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:59,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:22:59,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:59,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:22:59,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:59,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-16 05:22:59,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:59,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 05:22:59,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:59,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:22:59,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:59,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 05:22:59,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:59,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-16 05:22:59,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:22:59,876 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 05:22:59,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:22:59,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110420357] [2023-12-16 05:22:59,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110420357] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:22:59,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:22:59,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 05:22:59,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575998166] [2023-12-16 05:22:59,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:22:59,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:22:59,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:22:59,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:22:59,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 05:22:59,884 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) [2023-12-16 05:23:02,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:02,687 INFO L93 Difference]: Finished difference Result 1201 states and 1996 transitions. [2023-12-16 05:23:02,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 05:23:02,688 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 [2023-12-16 05:23:02,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:02,694 INFO L225 Difference]: With dead ends: 1201 [2023-12-16 05:23:02,694 INFO L226 Difference]: Without dead ends: 664 [2023-12-16 05:23:02,697 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 [2023-12-16 05:23:02,697 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 660 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 1734 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s 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, 2.4s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:02,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 1447 Invalid, 1847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1734 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-16 05:23:02,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2023-12-16 05:23:02,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 549. [2023-12-16 05:23:02,767 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) [2023-12-16 05:23:02,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 905 transitions. [2023-12-16 05:23:02,771 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 905 transitions. Word has length 53 [2023-12-16 05:23:02,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:02,771 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 905 transitions. [2023-12-16 05:23:02,772 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) [2023-12-16 05:23:02,772 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 905 transitions. [2023-12-16 05:23:02,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-16 05:23:02,773 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:02,773 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] [2023-12-16 05:23:02,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 05:23:02,774 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:02,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:02,774 INFO L85 PathProgramCache]: Analyzing trace with hash 478406298, now seen corresponding path program 1 times [2023-12-16 05:23:02,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:02,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837950143] [2023-12-16 05:23:02,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:02,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:02,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:03,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:03,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:03,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:03,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 05:23:03,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:03,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-16 05:23:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:03,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 05:23:03,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:03,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:03,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:03,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-16 05:23:03,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:03,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-16 05:23:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:03,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 05:23:03,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:03,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837950143] [2023-12-16 05:23:03,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837950143] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:03,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:03,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 05:23:03,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290418197] [2023-12-16 05:23:03,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:03,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:23:03,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:03,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:23:03,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 05:23:03,048 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) [2023-12-16 05:23:05,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:05,783 INFO L93 Difference]: Finished difference Result 1201 states and 1995 transitions. [2023-12-16 05:23:05,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 05:23:05,784 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 [2023-12-16 05:23:05,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:05,789 INFO L225 Difference]: With dead ends: 1201 [2023-12-16 05:23:05,789 INFO L226 Difference]: Without dead ends: 664 [2023-12-16 05:23:05,792 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 [2023-12-16 05:23:05,793 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 657 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 1732 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s 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, 2.3s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:05,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 1447 Invalid, 1845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1732 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-16 05:23:05,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2023-12-16 05:23:05,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 549. [2023-12-16 05:23:05,860 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) [2023-12-16 05:23:05,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 904 transitions. [2023-12-16 05:23:05,865 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 904 transitions. Word has length 54 [2023-12-16 05:23:05,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:05,866 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 904 transitions. [2023-12-16 05:23:05,866 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) [2023-12-16 05:23:05,866 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 904 transitions. [2023-12-16 05:23:05,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-16 05:23:05,867 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:05,867 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] [2023-12-16 05:23:05,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 05:23:05,867 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:05,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:05,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1007682570, now seen corresponding path program 1 times [2023-12-16 05:23:05,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:05,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422157255] [2023-12-16 05:23:05,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:05,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:05,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:06,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:06,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:06,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:06,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:06,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 05:23:06,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:06,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 05:23:06,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:06,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-16 05:23:06,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:06,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:06,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 05:23:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:06,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-16 05:23:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:06,128 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 05:23:06,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:06,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422157255] [2023-12-16 05:23:06,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422157255] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:06,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:06,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 05:23:06,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265525453] [2023-12-16 05:23:06,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:06,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:23:06,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:06,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:23:06,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 05:23:06,130 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) [2023-12-16 05:23:08,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:08,821 INFO L93 Difference]: Finished difference Result 1201 states and 1994 transitions. [2023-12-16 05:23:08,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 05:23:08,822 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 [2023-12-16 05:23:08,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:08,827 INFO L225 Difference]: With dead ends: 1201 [2023-12-16 05:23:08,827 INFO L226 Difference]: Without dead ends: 664 [2023-12-16 05:23:08,829 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 [2023-12-16 05:23:08,830 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 654 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 1730 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s 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, 2.3s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:08,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [737 Valid, 1447 Invalid, 1843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1730 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-16 05:23:08,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2023-12-16 05:23:08,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 549. [2023-12-16 05:23:08,889 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) [2023-12-16 05:23:08,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 903 transitions. [2023-12-16 05:23:08,893 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 903 transitions. Word has length 55 [2023-12-16 05:23:08,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:08,893 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 903 transitions. [2023-12-16 05:23:08,894 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) [2023-12-16 05:23:08,894 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 903 transitions. [2023-12-16 05:23:08,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-16 05:23:08,895 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:08,895 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] [2023-12-16 05:23:08,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 05:23:08,895 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:08,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:08,895 INFO L85 PathProgramCache]: Analyzing trace with hash -203044074, now seen corresponding path program 1 times [2023-12-16 05:23:08,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:08,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284211036] [2023-12-16 05:23:08,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:08,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:09,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:09,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:09,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:09,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-16 05:23:09,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:09,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-16 05:23:09,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:09,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 05:23:09,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:09,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:09,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:09,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-16 05:23:09,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:09,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 05:23:09,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:09,175 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 05:23:09,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:09,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284211036] [2023-12-16 05:23:09,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284211036] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:09,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:09,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 05:23:09,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491445034] [2023-12-16 05:23:09,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:09,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:23:09,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:09,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:23:09,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 05:23:09,183 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) [2023-12-16 05:23:11,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:11,798 INFO L93 Difference]: Finished difference Result 1201 states and 1993 transitions. [2023-12-16 05:23:11,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 05:23:11,799 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 [2023-12-16 05:23:11,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:11,803 INFO L225 Difference]: With dead ends: 1201 [2023-12-16 05:23:11,804 INFO L226 Difference]: Without dead ends: 664 [2023-12-16 05:23:11,806 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 [2023-12-16 05:23:11,808 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 651 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 1728 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s 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, 2.2s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:11,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 1447 Invalid, 1841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1728 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-16 05:23:11,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2023-12-16 05:23:11,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 549. [2023-12-16 05:23:11,871 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) [2023-12-16 05:23:11,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 902 transitions. [2023-12-16 05:23:11,875 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 902 transitions. Word has length 56 [2023-12-16 05:23:11,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:11,876 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 902 transitions. [2023-12-16 05:23:11,876 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) [2023-12-16 05:23:11,876 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 902 transitions. [2023-12-16 05:23:11,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 05:23:11,878 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:11,880 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] [2023-12-16 05:23:11,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 05:23:11,882 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:11,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:11,883 INFO L85 PathProgramCache]: Analyzing trace with hash -702633563, now seen corresponding path program 1 times [2023-12-16 05:23:11,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:11,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970409212] [2023-12-16 05:23:11,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:11,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:11,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:12,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:12,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:12,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:12,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:12,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:12,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:12,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:23:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:12,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 05:23:12,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:12,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:12,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:12,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 05:23:12,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:12,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 05:23:12,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:12,165 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 05:23:12,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:12,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970409212] [2023-12-16 05:23:12,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970409212] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:12,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:12,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 05:23:12,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545059261] [2023-12-16 05:23:12,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:12,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:23:12,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:12,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:23:12,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 05:23:12,170 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) [2023-12-16 05:23:14,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:14,922 INFO L93 Difference]: Finished difference Result 1224 states and 2035 transitions. [2023-12-16 05:23:14,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 05:23:14,922 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 [2023-12-16 05:23:14,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:14,927 INFO L225 Difference]: With dead ends: 1224 [2023-12-16 05:23:14,927 INFO L226 Difference]: Without dead ends: 691 [2023-12-16 05:23:14,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:23:14,930 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 757 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 1890 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s 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, 2.2s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:14,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 1364 Invalid, 2005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 1890 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-16 05:23:14,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2023-12-16 05:23:14,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 568. [2023-12-16 05:23:14,989 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) [2023-12-16 05:23:14,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 930 transitions. [2023-12-16 05:23:14,994 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 930 transitions. Word has length 57 [2023-12-16 05:23:14,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:14,994 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 930 transitions. [2023-12-16 05:23:14,994 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) [2023-12-16 05:23:14,994 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 930 transitions. [2023-12-16 05:23:14,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 05:23:14,995 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:14,995 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] [2023-12-16 05:23:14,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 05:23:14,995 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:14,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:14,996 INFO L85 PathProgramCache]: Analyzing trace with hash -433545124, now seen corresponding path program 1 times [2023-12-16 05:23:14,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:14,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846458809] [2023-12-16 05:23:14,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:14,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:15,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:15,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:15,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:15,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:15,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:15,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:15,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-16 05:23:15,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:15,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:23:15,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:15,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:15,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-16 05:23:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:15,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 05:23:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:15,234 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 05:23:15,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:15,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846458809] [2023-12-16 05:23:15,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846458809] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:15,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:15,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 05:23:15,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482779900] [2023-12-16 05:23:15,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:15,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:23:15,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:15,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:23:15,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 05:23:15,236 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) [2023-12-16 05:23:17,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:17,669 INFO L93 Difference]: Finished difference Result 1207 states and 1985 transitions. [2023-12-16 05:23:17,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 05:23:17,670 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 [2023-12-16 05:23:17,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:17,674 INFO L225 Difference]: With dead ends: 1207 [2023-12-16 05:23:17,675 INFO L226 Difference]: Without dead ends: 691 [2023-12-16 05:23:17,677 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 [2023-12-16 05:23:17,678 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 733 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 1881 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s 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, 2.2s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:17,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 1360 Invalid, 1990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 1881 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-16 05:23:17,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2023-12-16 05:23:17,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 568. [2023-12-16 05:23:17,739 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) [2023-12-16 05:23:17,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 925 transitions. [2023-12-16 05:23:17,742 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 925 transitions. Word has length 58 [2023-12-16 05:23:17,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:17,742 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 925 transitions. [2023-12-16 05:23:17,742 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) [2023-12-16 05:23:17,743 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 925 transitions. [2023-12-16 05:23:17,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-16 05:23:17,743 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:17,743 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] [2023-12-16 05:23:17,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 05:23:17,744 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:17,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:17,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1000188726, now seen corresponding path program 1 times [2023-12-16 05:23:17,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:17,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074770768] [2023-12-16 05:23:17,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:17,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:17,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:17,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:17,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:17,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:17,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:17,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:17,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:17,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-16 05:23:17,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:17,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-16 05:23:17,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:17,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:17,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:17,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-16 05:23:17,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:17,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-16 05:23:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:17,996 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 05:23:17,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:17,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074770768] [2023-12-16 05:23:17,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074770768] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:17,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:17,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 05:23:17,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490996447] [2023-12-16 05:23:17,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:17,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:23:17,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:17,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:23:17,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 05:23:17,998 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) [2023-12-16 05:23:20,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:20,456 INFO L93 Difference]: Finished difference Result 1207 states and 1980 transitions. [2023-12-16 05:23:20,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 05:23:20,457 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 [2023-12-16 05:23:20,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:20,463 INFO L225 Difference]: With dead ends: 1207 [2023-12-16 05:23:20,463 INFO L226 Difference]: Without dead ends: 691 [2023-12-16 05:23:20,466 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 [2023-12-16 05:23:20,467 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 727 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 1866 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s 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, 2.2s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:20,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 1360 Invalid, 1975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 1866 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-16 05:23:20,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2023-12-16 05:23:20,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 568. [2023-12-16 05:23:20,526 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) [2023-12-16 05:23:20,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 920 transitions. [2023-12-16 05:23:20,535 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 920 transitions. Word has length 59 [2023-12-16 05:23:20,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:20,535 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 920 transitions. [2023-12-16 05:23:20,536 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) [2023-12-16 05:23:20,536 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 920 transitions. [2023-12-16 05:23:20,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-16 05:23:20,537 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:20,537 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] [2023-12-16 05:23:20,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 05:23:20,537 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:20,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:20,537 INFO L85 PathProgramCache]: Analyzing trace with hash -387537534, now seen corresponding path program 1 times [2023-12-16 05:23:20,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:20,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871952112] [2023-12-16 05:23:20,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:20,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:20,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:20,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:20,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:20,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:20,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:20,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:20,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:20,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 05:23:20,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:20,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 05:23:20,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:20,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:20,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:20,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-16 05:23:20,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:20,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-16 05:23:20,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:20,797 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 05:23:20,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:20,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871952112] [2023-12-16 05:23:20,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871952112] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:20,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:20,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 05:23:20,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744816168] [2023-12-16 05:23:20,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:20,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:23:20,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:20,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:23:20,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 05:23:20,799 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) [2023-12-16 05:23:23,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:23,431 INFO L93 Difference]: Finished difference Result 1227 states and 2007 transitions. [2023-12-16 05:23:23,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:23:23,432 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 [2023-12-16 05:23:23,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:23,435 INFO L225 Difference]: With dead ends: 1227 [2023-12-16 05:23:23,436 INFO L226 Difference]: Without dead ends: 717 [2023-12-16 05:23:23,437 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 [2023-12-16 05:23:23,438 INFO L413 NwaCegarLoop]: 474 mSDtfsCounter, 714 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 1833 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s 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 [2023-12-16 05:23:23,438 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] [2023-12-16 05:23:23,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2023-12-16 05:23:23,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 572. [2023-12-16 05:23:23,494 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) [2023-12-16 05:23:23,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 924 transitions. [2023-12-16 05:23:23,496 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 924 transitions. Word has length 60 [2023-12-16 05:23:23,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:23,496 INFO L495 AbstractCegarLoop]: Abstraction has 572 states and 924 transitions. [2023-12-16 05:23:23,497 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) [2023-12-16 05:23:23,497 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 924 transitions. [2023-12-16 05:23:23,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-16 05:23:23,498 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:23,498 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] [2023-12-16 05:23:23,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 05:23:23,498 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:23,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:23,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1704721823, now seen corresponding path program 1 times [2023-12-16 05:23:23,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:23,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820802064] [2023-12-16 05:23:23,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:23,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:23,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:23,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:23,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:23,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:23,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:23,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:23,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:23,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 05:23:23,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:23,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 05:23:23,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:23,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:23,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-16 05:23:23,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:23,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-16 05:23:23,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:23,710 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 05:23:23,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:23,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820802064] [2023-12-16 05:23:23,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820802064] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:23,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:23,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 05:23:23,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982778709] [2023-12-16 05:23:23,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:23,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:23:23,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:23,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:23:23,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 05:23:23,712 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) [2023-12-16 05:23:26,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:26,122 INFO L93 Difference]: Finished difference Result 1217 states and 1984 transitions. [2023-12-16 05:23:26,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 05:23:26,123 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 [2023-12-16 05:23:26,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:26,126 INFO L225 Difference]: With dead ends: 1217 [2023-12-16 05:23:26,126 INFO L226 Difference]: Without dead ends: 697 [2023-12-16 05:23:26,128 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 [2023-12-16 05:23:26,129 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 721 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 1851 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s 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, 2.2s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:26,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 1360 Invalid, 1960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 1851 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-16 05:23:26,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2023-12-16 05:23:26,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 572. [2023-12-16 05:23:26,186 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) [2023-12-16 05:23:26,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 919 transitions. [2023-12-16 05:23:26,189 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 919 transitions. Word has length 60 [2023-12-16 05:23:26,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:26,189 INFO L495 AbstractCegarLoop]: Abstraction has 572 states and 919 transitions. [2023-12-16 05:23:26,189 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) [2023-12-16 05:23:26,189 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 919 transitions. [2023-12-16 05:23:26,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-16 05:23:26,190 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:26,190 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] [2023-12-16 05:23:26,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 05:23:26,191 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:26,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:26,191 INFO L85 PathProgramCache]: Analyzing trace with hash 179148652, now seen corresponding path program 1 times [2023-12-16 05:23:26,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:26,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153211295] [2023-12-16 05:23:26,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:26,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:26,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:26,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:26,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:26,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:26,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:26,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:26,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:26,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 05:23:26,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:26,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-16 05:23:26,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:26,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:26,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:26,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 05:23:26,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:26,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-16 05:23:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:26,430 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 05:23:26,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:26,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153211295] [2023-12-16 05:23:26,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153211295] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:26,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:26,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 05:23:26,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285127163] [2023-12-16 05:23:26,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:26,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:23:26,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:26,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:23:26,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 05:23:26,433 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) [2023-12-16 05:23:28,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:28,927 INFO L93 Difference]: Finished difference Result 1235 states and 2006 transitions. [2023-12-16 05:23:28,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:23:28,928 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 [2023-12-16 05:23:28,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:28,931 INFO L225 Difference]: With dead ends: 1235 [2023-12-16 05:23:28,931 INFO L226 Difference]: Without dead ends: 723 [2023-12-16 05:23:28,933 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 [2023-12-16 05:23:28,934 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 715 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 1800 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s 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, 2.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:28,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [798 Valid, 1396 Invalid, 1908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1800 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-16 05:23:28,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2023-12-16 05:23:28,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 578. [2023-12-16 05:23:28,990 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) [2023-12-16 05:23:28,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 925 transitions. [2023-12-16 05:23:28,992 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 925 transitions. Word has length 61 [2023-12-16 05:23:28,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:28,993 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 925 transitions. [2023-12-16 05:23:28,993 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) [2023-12-16 05:23:28,993 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 925 transitions. [2023-12-16 05:23:28,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-16 05:23:28,994 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:28,994 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] [2023-12-16 05:23:28,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 05:23:28,994 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:28,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:28,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1906105327, now seen corresponding path program 1 times [2023-12-16 05:23:28,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:28,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801293363] [2023-12-16 05:23:28,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:28,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:29,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:29,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:29,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:29,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:29,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:29,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:29,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 05:23:29,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:29,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-16 05:23:29,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:29,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:29,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:29,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 05:23:29,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:29,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-16 05:23:29,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:29,224 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 05:23:29,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:29,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801293363] [2023-12-16 05:23:29,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801293363] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:29,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:29,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 05:23:29,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48482794] [2023-12-16 05:23:29,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:29,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:23:29,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:29,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:23:29,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 05:23:29,225 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) [2023-12-16 05:23:31,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:31,512 INFO L93 Difference]: Finished difference Result 1232 states and 1993 transitions. [2023-12-16 05:23:31,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 05:23:31,512 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 [2023-12-16 05:23:31,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:31,516 INFO L225 Difference]: With dead ends: 1232 [2023-12-16 05:23:31,516 INFO L226 Difference]: Without dead ends: 706 [2023-12-16 05:23:31,517 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 [2023-12-16 05:23:31,517 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 715 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 1836 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s 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, 2.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:31,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [798 Valid, 1360 Invalid, 1945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 1836 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-16 05:23:31,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2023-12-16 05:23:31,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 578. [2023-12-16 05:23:31,573 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) [2023-12-16 05:23:31,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 920 transitions. [2023-12-16 05:23:31,575 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 920 transitions. Word has length 61 [2023-12-16 05:23:31,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:31,576 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 920 transitions. [2023-12-16 05:23:31,576 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) [2023-12-16 05:23:31,576 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 920 transitions. [2023-12-16 05:23:31,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 05:23:31,577 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:31,577 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] [2023-12-16 05:23:31,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 05:23:31,577 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:31,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:31,578 INFO L85 PathProgramCache]: Analyzing trace with hash -2079587257, now seen corresponding path program 1 times [2023-12-16 05:23:31,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:31,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879820203] [2023-12-16 05:23:31,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:31,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:31,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:31,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:31,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:31,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:31,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:31,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:31,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:31,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-16 05:23:31,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:31,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 05:23:31,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:31,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:31,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 05:23:31,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:31,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 05:23:31,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:31,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 05:23:31,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:31,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879820203] [2023-12-16 05:23:31,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879820203] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:31,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:31,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 05:23:31,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537038629] [2023-12-16 05:23:31,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:31,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:23:31,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:31,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:23:31,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 05:23:31,799 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) [2023-12-16 05:23:34,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:34,444 INFO L93 Difference]: Finished difference Result 1247 states and 2009 transitions. [2023-12-16 05:23:34,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:23:34,445 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 [2023-12-16 05:23:34,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:34,448 INFO L225 Difference]: With dead ends: 1247 [2023-12-16 05:23:34,448 INFO L226 Difference]: Without dead ends: 732 [2023-12-16 05:23:34,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:23:34,450 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 707 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 1790 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s 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, 2.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:34,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 1391 Invalid, 1899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 1790 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-16 05:23:34,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2023-12-16 05:23:34,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 586. [2023-12-16 05:23:34,506 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) [2023-12-16 05:23:34,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 928 transitions. [2023-12-16 05:23:34,508 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 928 transitions. Word has length 62 [2023-12-16 05:23:34,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:34,509 INFO L495 AbstractCegarLoop]: Abstraction has 586 states and 928 transitions. [2023-12-16 05:23:34,509 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) [2023-12-16 05:23:34,509 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 928 transitions. [2023-12-16 05:23:34,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 05:23:34,510 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:34,510 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] [2023-12-16 05:23:34,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 05:23:34,511 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:34,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:34,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1854146662, now seen corresponding path program 1 times [2023-12-16 05:23:34,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:34,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596710569] [2023-12-16 05:23:34,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:34,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:34,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:34,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:34,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:34,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:34,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:34,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-16 05:23:34,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:34,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 05:23:34,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:34,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:34,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:34,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 05:23:34,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:34,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 05:23:34,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:34,726 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 05:23:34,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:34,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596710569] [2023-12-16 05:23:34,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596710569] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:34,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:34,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 05:23:34,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647960036] [2023-12-16 05:23:34,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:34,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:23:34,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:34,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:23:34,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 05:23:34,728 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) [2023-12-16 05:23:37,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:37,276 INFO L93 Difference]: Finished difference Result 1292 states and 2062 transitions. [2023-12-16 05:23:37,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 05:23:37,277 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 [2023-12-16 05:23:37,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:37,280 INFO L225 Difference]: With dead ends: 1292 [2023-12-16 05:23:37,280 INFO L226 Difference]: Without dead ends: 718 [2023-12-16 05:23:37,281 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 [2023-12-16 05:23:37,282 INFO L413 NwaCegarLoop]: 489 mSDtfsCounter, 651 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 1726 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s 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, 2.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:37,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 1500 Invalid, 1834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1726 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-16 05:23:37,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2023-12-16 05:23:37,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 586. [2023-12-16 05:23:37,336 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) [2023-12-16 05:23:37,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 927 transitions. [2023-12-16 05:23:37,339 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 927 transitions. Word has length 62 [2023-12-16 05:23:37,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:37,339 INFO L495 AbstractCegarLoop]: Abstraction has 586 states and 927 transitions. [2023-12-16 05:23:37,339 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) [2023-12-16 05:23:37,339 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 927 transitions. [2023-12-16 05:23:37,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 05:23:37,340 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:37,340 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] [2023-12-16 05:23:37,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 05:23:37,340 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:37,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:37,341 INFO L85 PathProgramCache]: Analyzing trace with hash 720956069, now seen corresponding path program 1 times [2023-12-16 05:23:37,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:37,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171586099] [2023-12-16 05:23:37,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:37,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:37,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:37,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:37,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:37,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:37,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:37,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-16 05:23:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:37,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 05:23:37,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:37,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:37,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 05:23:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:37,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 05:23:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:37,608 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 05:23:37,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:37,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171586099] [2023-12-16 05:23:37,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171586099] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:37,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:37,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 05:23:37,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248763456] [2023-12-16 05:23:37,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:37,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 05:23:37,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:37,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 05:23:37,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 05:23:37,610 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) [2023-12-16 05:23:40,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:40,895 INFO L93 Difference]: Finished difference Result 1253 states and 2008 transitions. [2023-12-16 05:23:40,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 05:23:40,896 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 [2023-12-16 05:23:40,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:40,899 INFO L225 Difference]: With dead ends: 1253 [2023-12-16 05:23:40,899 INFO L226 Difference]: Without dead ends: 714 [2023-12-16 05:23:40,901 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 [2023-12-16 05:23:40,902 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 724 mSDsluCounter, 2278 mSDsCounter, 0 mSdLazyCounter, 3455 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s 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, 2.5s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:40,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 2760 Invalid, 3561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 3455 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-16 05:23:40,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2023-12-16 05:23:40,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 578. [2023-12-16 05:23:40,953 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) [2023-12-16 05:23:40,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 915 transitions. [2023-12-16 05:23:40,955 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 915 transitions. Word has length 62 [2023-12-16 05:23:40,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:40,956 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 915 transitions. [2023-12-16 05:23:40,956 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) [2023-12-16 05:23:40,956 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 915 transitions. [2023-12-16 05:23:40,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-16 05:23:40,957 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:40,957 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] [2023-12-16 05:23:40,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 05:23:40,957 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:40,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:40,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1793702386, now seen corresponding path program 1 times [2023-12-16 05:23:40,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:40,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401822538] [2023-12-16 05:23:40,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:40,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:40,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:41,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:41,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:41,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:41,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:41,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:41,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 05:23:41,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:41,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-16 05:23:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:41,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:41,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 05:23:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:41,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 05:23:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:41,197 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 05:23:41,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:41,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401822538] [2023-12-16 05:23:41,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401822538] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:41,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:41,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 05:23:41,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518178796] [2023-12-16 05:23:41,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:41,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:23:41,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:41,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:23:41,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 05:23:41,200 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) [2023-12-16 05:23:43,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:43,704 INFO L93 Difference]: Finished difference Result 1253 states and 2005 transitions. [2023-12-16 05:23:43,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:23:43,705 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 [2023-12-16 05:23:43,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:43,707 INFO L225 Difference]: With dead ends: 1253 [2023-12-16 05:23:43,708 INFO L226 Difference]: Without dead ends: 734 [2023-12-16 05:23:43,709 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 [2023-12-16 05:23:43,709 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 689 mSDsluCounter, 923 mSDsCounter, 0 mSdLazyCounter, 1779 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s 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, 2.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:43,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 1383 Invalid, 1889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1779 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-16 05:23:43,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2023-12-16 05:23:43,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 588. [2023-12-16 05:23:43,755 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) [2023-12-16 05:23:43,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 925 transitions. [2023-12-16 05:23:43,758 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 925 transitions. Word has length 63 [2023-12-16 05:23:43,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:43,758 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 925 transitions. [2023-12-16 05:23:43,758 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) [2023-12-16 05:23:43,758 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 925 transitions. [2023-12-16 05:23:43,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-16 05:23:43,759 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:43,759 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] [2023-12-16 05:23:43,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 05:23:43,759 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:43,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:43,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1750729383, now seen corresponding path program 1 times [2023-12-16 05:23:43,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:43,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662369407] [2023-12-16 05:23:43,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:43,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:43,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:43,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:43,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:43,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:43,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:43,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:43,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 05:23:43,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:43,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 05:23:43,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:43,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:43,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:43,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-16 05:23:43,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:43,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-16 05:23:43,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:43,967 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 05:23:43,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:43,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662369407] [2023-12-16 05:23:43,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662369407] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:43,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:43,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 05:23:43,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374906293] [2023-12-16 05:23:43,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:43,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:23:43,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:43,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:23:43,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 05:23:43,969 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) [2023-12-16 05:23:46,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:23:46,559 INFO L93 Difference]: Finished difference Result 1255 states and 1999 transitions. [2023-12-16 05:23:46,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 05:23:46,560 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 [2023-12-16 05:23:46,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:23:46,563 INFO L225 Difference]: With dead ends: 1255 [2023-12-16 05:23:46,563 INFO L226 Difference]: Without dead ends: 711 [2023-12-16 05:23:46,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:23:46,565 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 723 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 1801 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s 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, 2.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:46,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [806 Valid, 1345 Invalid, 1914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1801 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-16 05:23:46,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2023-12-16 05:23:46,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 588. [2023-12-16 05:23:46,620 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) [2023-12-16 05:23:46,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 921 transitions. [2023-12-16 05:23:46,622 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 921 transitions. Word has length 64 [2023-12-16 05:23:46,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:23:46,623 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 921 transitions. [2023-12-16 05:23:46,623 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) [2023-12-16 05:23:46,623 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 921 transitions. [2023-12-16 05:23:46,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-16 05:23:46,624 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:23:46,624 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] [2023-12-16 05:23:46,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 05:23:46,624 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:23:46,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:23:46,624 INFO L85 PathProgramCache]: Analyzing trace with hash -378922085, now seen corresponding path program 1 times [2023-12-16 05:23:46,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:23:46,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006616759] [2023-12-16 05:23:46,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:23:46,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:23:46,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:46,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:23:46,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:46,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:46,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 05:23:46,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:46,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 05:23:46,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:46,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 05:23:46,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:46,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 05:23:46,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:46,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-16 05:23:46,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:46,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-16 05:23:46,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:23:46,870 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 05:23:46,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:23:46,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006616759] [2023-12-16 05:23:46,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006616759] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:23:46,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:23:46,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 05:23:46,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863599161] [2023-12-16 05:23:46,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:23:46,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 05:23:46,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:23:46,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 05:23:46,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 05:23:46,872 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) Received shutdown request... [2023-12-16 05:23:47,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 05:23:47,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 05:23:47,796 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 819 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 05:23:47,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 325 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 05:23:47,797 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 05:23:47,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 05:23:47,798 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (588states) and FLOYD_HOARE automaton (currently 5 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (485 states constructed, input type IntersectNwa). [2023-12-16 05:23:47,802 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:23:47,804 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 05:23:47,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:23:47 BoogieIcfgContainer [2023-12-16 05:23:47,806 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 05:23:47,806 INFO L158 Benchmark]: Toolchain (without parser) took 55157.14ms. Allocated memory was 208.7MB in the beginning and 526.4MB in the end (delta: 317.7MB). Free memory was 163.2MB in the beginning and 408.2MB in the end (delta: -245.0MB). Peak memory consumption was 310.3MB. Max. memory is 8.0GB. [2023-12-16 05:23:47,806 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 208.7MB. Free memory is still 164.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 05:23:47,807 INFO L158 Benchmark]: CACSL2BoogieTranslator took 709.58ms. Allocated memory is still 208.7MB. Free memory was 162.9MB in the beginning and 174.4MB in the end (delta: -11.5MB). Peak memory consumption was 50.2MB. Max. memory is 8.0GB. [2023-12-16 05:23:47,807 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.08ms. Allocated memory is still 208.7MB. Free memory was 174.4MB in the beginning and 169.1MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 05:23:47,807 INFO L158 Benchmark]: Boogie Preprocessor took 96.83ms. Allocated memory is still 208.7MB. Free memory was 169.1MB in the beginning and 161.3MB in the end (delta: 7.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-16 05:23:47,807 INFO L158 Benchmark]: RCFGBuilder took 1430.98ms. Allocated memory was 208.7MB in the beginning and 283.1MB in the end (delta: 74.4MB). Free memory was 161.3MB in the beginning and 212.1MB in the end (delta: -50.9MB). Peak memory consumption was 64.0MB. Max. memory is 8.0GB. [2023-12-16 05:23:47,808 INFO L158 Benchmark]: TraceAbstraction took 52822.57ms. Allocated memory was 283.1MB in the beginning and 526.4MB in the end (delta: 243.3MB). Free memory was 211.6MB in the beginning and 408.2MB in the end (delta: -196.6MB). Peak memory consumption was 283.1MB. Max. memory is 8.0GB. [2023-12-16 05:23:47,809 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 208.7MB. Free memory is still 164.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 709.58ms. Allocated memory is still 208.7MB. Free memory was 162.9MB in the beginning and 174.4MB in the end (delta: -11.5MB). Peak memory consumption was 50.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 90.08ms. Allocated memory is still 208.7MB. Free memory was 174.4MB in the beginning and 169.1MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 96.83ms. Allocated memory is still 208.7MB. Free memory was 169.1MB in the beginning and 161.3MB in the end (delta: 7.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1430.98ms. Allocated memory was 208.7MB in the beginning and 283.1MB in the end (delta: 74.4MB). Free memory was 161.3MB in the beginning and 212.1MB in the end (delta: -50.9MB). Peak memory consumption was 64.0MB. Max. memory is 8.0GB. * TraceAbstraction took 52822.57ms. Allocated memory was 283.1MB in the beginning and 526.4MB in the end (delta: 243.3MB). Free memory was 211.6MB in the beginning and 408.2MB in the end (delta: -196.6MB). Peak memory consumption was 283.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 48]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] - GenericResultAtLocation [Line: 408]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [408] - GenericResultAtLocation [Line: 422]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [422] - GenericResultAtLocation [Line: 467]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [467] - GenericResultAtLocation [Line: 2112]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2112] - GenericResultAtLocation [Line: 2773]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2773] - GenericResultAtLocation [Line: 3139]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3139] - GenericResultAtLocation [Line: 3174]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3174] - GenericResultAtLocation [Line: 3292]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3292] - GenericResultAtLocation [Line: 3383]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3383] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 3388]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 3388). Cancelled while NwaCegarLoop was constructing difference of abstraction (588states) and FLOYD_HOARE automaton (currently 5 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (485 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 28 procedures, 550 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 52.8s, OverallIterations: 18, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 46.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14102 SdHoareTripleChecker+Valid, 38.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12685 mSDsluCounter, 25570 SdHoareTripleChecker+Invalid, 34.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17417 mSDsCounter, 1979 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32577 IncrementalHoareTripleChecker+Invalid, 34556 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1979 mSolverCounterUnsat, 8153 mSDtfsCounter, 32577 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 424 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 7.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=588occurred in iteration=16, InterpolantAutomatonStates: 119, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 17 MinimizatonAttempts, 2170 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 1063 NumberOfCodeBlocks, 1063 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1045 ConstructedInterpolants, 0 QuantifiedInterpolants, 5160 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 36/36 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown