./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/product-lines/elevator_spec14_product03.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c4f91361 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/product-lines/elevator_spec14_product03.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8ed4163e8f042a84d9cdccd4fee3ee0ba89fdce83cd991779acec4a51d9a650c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-c4f9136-m [2023-11-23 14:14:19,328 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 14:14:19,391 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-23 14:14:19,394 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 14:14:19,395 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 14:14:19,416 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 14:14:19,423 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 14:14:19,423 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 14:14:19,424 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 14:14:19,425 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 14:14:19,425 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 14:14:19,425 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 14:14:19,426 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 14:14:19,428 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 14:14:19,428 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 14:14:19,428 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 14:14:19,429 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 14:14:19,429 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 14:14:19,432 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 14:14:19,432 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 14:14:19,432 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 14:14:19,433 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 14:14:19,433 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 14:14:19,433 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 14:14:19,433 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 14:14:19,434 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 14:14:19,434 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 14:14:19,434 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 14:14:19,434 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 14:14:19,434 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 14:14:19,435 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 14:14:19,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 14:14:19,436 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 14:14:19,436 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 14:14:19,436 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 14:14:19,436 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 14:14:19,437 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 14:14:19,437 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 14:14:19,437 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 14:14:19,437 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 14:14:19,437 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 14:14:19,438 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 14:14:19,438 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ed4163e8f042a84d9cdccd4fee3ee0ba89fdce83cd991779acec4a51d9a650c [2023-11-23 14:14:19,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 14:14:19,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 14:14:19,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 14:14:19,706 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 14:14:19,707 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 14:14:19,707 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product03.cil.c [2023-11-23 14:14:20,769 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 14:14:21,034 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 14:14:21,034 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product03.cil.c [2023-11-23 14:14:21,056 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2224a5a1/cbe02ab03a81406caba56fa94320a55a/FLAGfe5dbf5cb [2023-11-23 14:14:21,075 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2224a5a1/cbe02ab03a81406caba56fa94320a55a [2023-11-23 14:14:21,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 14:14:21,079 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 14:14:21,079 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 14:14:21,079 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 14:14:21,084 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 14:14:21,085 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:14:21" (1/1) ... [2023-11-23 14:14:21,085 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f1a47ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:21, skipping insertion in model container [2023-11-23 14:14:21,085 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:14:21" (1/1) ... [2023-11-23 14:14:21,149 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 14:14:21,509 WARN L240 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_product03.cil.c[68958,68971] [2023-11-23 14:14:21,513 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 14:14:21,521 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 14:14:21,528 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [48] [2023-11-23 14:14:21,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [169] [2023-11-23 14:14:21,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [268] [2023-11-23 14:14:21,533 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [935] [2023-11-23 14:14:21,533 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [976] [2023-11-23 14:14:21,533 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [994] [2023-11-23 14:14:21,533 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1346] [2023-11-23 14:14:21,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1712] [2023-11-23 14:14:21,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1747] [2023-11-23 14:14:21,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3244] [2023-11-23 14:14:21,612 WARN L240 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_product03.cil.c[68958,68971] [2023-11-23 14:14:21,612 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 14:14:21,631 INFO L206 MainTranslator]: Completed translation [2023-11-23 14:14:21,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:21 WrapperNode [2023-11-23 14:14:21,631 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 14:14:21,632 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 14:14:21,632 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 14:14:21,632 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 14:14:21,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:21" (1/1) ... [2023-11-23 14:14:21,655 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:21" (1/1) ... [2023-11-23 14:14:21,710 INFO L138 Inliner]: procedures = 89, calls = 329, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 1002 [2023-11-23 14:14:21,716 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 14:14:21,717 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 14:14:21,717 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 14:14:21,717 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 14:14:21,725 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:21" (1/1) ... [2023-11-23 14:14:21,726 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:21" (1/1) ... [2023-11-23 14:14:21,735 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:21" (1/1) ... [2023-11-23 14:14:21,756 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-11-23 14:14:21,772 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:21" (1/1) ... [2023-11-23 14:14:21,772 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:21" (1/1) ... [2023-11-23 14:14:21,784 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:21" (1/1) ... [2023-11-23 14:14:21,804 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:21" (1/1) ... [2023-11-23 14:14:21,824 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:21" (1/1) ... [2023-11-23 14:14:21,828 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:21" (1/1) ... [2023-11-23 14:14:21,835 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 14:14:21,843 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 14:14:21,844 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 14:14:21,844 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 14:14:21,845 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:21" (1/1) ... [2023-11-23 14:14:21,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 14:14:21,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 14:14:21,876 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 14:14:21,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 14:14:21,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 14:14:21,931 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-11-23 14:14:21,931 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-11-23 14:14:21,932 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-11-23 14:14:21,932 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-11-23 14:14:21,932 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-11-23 14:14:21,932 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-11-23 14:14:21,932 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-11-23 14:14:21,933 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-11-23 14:14:21,933 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-11-23 14:14:21,933 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-11-23 14:14:21,934 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-11-23 14:14:21,934 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-11-23 14:14:21,934 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-23 14:14:21,934 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-23 14:14:21,934 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-23 14:14:21,935 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-23 14:14:21,935 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-11-23 14:14:21,935 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-11-23 14:14:21,935 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-11-23 14:14:21,936 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-11-23 14:14:21,936 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-11-23 14:14:21,936 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-11-23 14:14:21,936 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-11-23 14:14:21,936 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-11-23 14:14:21,937 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-11-23 14:14:21,937 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-11-23 14:14:21,937 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-11-23 14:14:21,937 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-11-23 14:14:21,937 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-11-23 14:14:21,937 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-11-23 14:14:21,937 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-11-23 14:14:21,937 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-11-23 14:14:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-11-23 14:14:21,938 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-11-23 14:14:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__base [2023-11-23 14:14:21,938 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__base [2023-11-23 14:14:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 14:14:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 14:14:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 14:14:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 14:14:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-23 14:14:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-23 14:14:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-23 14:14:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-23 14:14:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-23 14:14:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-23 14:14:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-23 14:14:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-23 14:14:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-23 14:14:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-23 14:14:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-23 14:14:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-23 14:14:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-11-23 14:14:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-11-23 14:14:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-11-23 14:14:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-11-23 14:14:21,942 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-11-23 14:14:21,942 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-11-23 14:14:21,942 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-11-23 14:14:21,942 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-11-23 14:14:21,942 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-11-23 14:14:21,942 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-11-23 14:14:21,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 14:14:21,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 14:14:21,943 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-11-23 14:14:21,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-11-23 14:14:22,113 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 14:14:22,114 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 14:14:22,807 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 14:14:22,872 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 14:14:22,873 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 14:14:22,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:14:22 BoogieIcfgContainer [2023-11-23 14:14:22,873 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 14:14:22,876 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 14:14:22,876 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 14:14:22,879 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 14:14:22,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:14:21" (1/3) ... [2023-11-23 14:14:22,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3565be0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:14:22, skipping insertion in model container [2023-11-23 14:14:22,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:21" (2/3) ... [2023-11-23 14:14:22,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3565be0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:14:22, skipping insertion in model container [2023-11-23 14:14:22,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:14:22" (3/3) ... [2023-11-23 14:14:22,881 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product03.cil.c [2023-11-23 14:14:22,895 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 14:14:22,895 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 14:14:22,944 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 14:14:22,949 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;@481f92b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 14:14:22,949 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 14:14:22,954 INFO L276 IsEmpty]: Start isEmpty. Operand has 497 states, 382 states have (on average 1.7172774869109948) internal successors, (656), 398 states have internal predecessors, (656), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2023-11-23 14:14:22,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-23 14:14:22,979 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:14:22,980 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:14:22,981 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:14:22,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:14:22,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1717607305, now seen corresponding path program 1 times [2023-11-23 14:14:22,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:14:22,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356753569] [2023-11-23 14:14:22,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:14:22,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:14:23,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:23,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:14:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:23,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:23,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 14:14:23,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:23,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-23 14:14:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:23,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:23,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 14:14:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:23,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-23 14:14:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:23,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:23,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:23,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:23,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-23 14:14:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:23,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-23 14:14:23,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:23,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:23,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:23,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 14:14:23,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:23,779 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-23 14:14:23,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:14:23,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356753569] [2023-11-23 14:14:23,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356753569] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:14:23,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:14:23,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 14:14:23,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895578860] [2023-11-23 14:14:23,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:14:23,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 14:14:23,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:14:23,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 14:14:23,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 14:14:23,808 INFO L87 Difference]: Start difference. First operand has 497 states, 382 states have (on average 1.7172774869109948) internal successors, (656), 398 states have internal predecessors, (656), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 14:14:26,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:14:26,898 INFO L93 Difference]: Finished difference Result 1181 states and 2022 transitions. [2023-11-23 14:14:26,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 14:14:26,901 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 88 [2023-11-23 14:14:26,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:14:26,921 INFO L225 Difference]: With dead ends: 1181 [2023-11-23 14:14:26,922 INFO L226 Difference]: Without dead ends: 678 [2023-11-23 14:14:26,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-23 14:14:26,941 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 1265 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 2361 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 2731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 2361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-23 14:14:26,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1312 Valid, 1075 Invalid, 2731 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [370 Valid, 2361 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-23 14:14:26,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2023-11-23 14:14:27,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 496. [2023-11-23 14:14:27,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 382 states have (on average 1.698952879581152) internal successors, (649), 397 states have internal predecessors, (649), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-23 14:14:27,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 830 transitions. [2023-11-23 14:14:27,072 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 830 transitions. Word has length 88 [2023-11-23 14:14:27,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:14:27,072 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 830 transitions. [2023-11-23 14:14:27,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 14:14:27,073 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 830 transitions. [2023-11-23 14:14:27,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-23 14:14:27,077 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:14:27,077 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:14:27,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 14:14:27,077 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:14:27,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:14:27,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1831948279, now seen corresponding path program 1 times [2023-11-23 14:14:27,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:14:27,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805700915] [2023-11-23 14:14:27,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:14:27,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:14:27,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:27,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:14:27,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:27,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:27,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-23 14:14:27,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:27,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 14:14:27,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:27,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:27,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 14:14:27,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:27,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 14:14:27,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:27,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:27,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:27,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:27,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:27,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 14:14:27,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:27,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 14:14:27,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:27,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:27,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:27,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-23 14:14:27,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:27,364 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-23 14:14:27,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:14:27,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805700915] [2023-11-23 14:14:27,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805700915] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:14:27,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:14:27,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 14:14:27,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563135278] [2023-11-23 14:14:27,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:14:27,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 14:14:27,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:14:27,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 14:14:27,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 14:14:27,370 INFO L87 Difference]: Start difference. First operand 496 states and 830 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 14:14:29,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:14:29,996 INFO L93 Difference]: Finished difference Result 1162 states and 1956 transitions. [2023-11-23 14:14:29,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 14:14:29,997 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 89 [2023-11-23 14:14:29,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:14:30,003 INFO L225 Difference]: With dead ends: 1162 [2023-11-23 14:14:30,003 INFO L226 Difference]: Without dead ends: 678 [2023-11-23 14:14:30,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-23 14:14:30,006 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 1254 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 2344 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1301 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 2712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 2344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-23 14:14:30,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1301 Valid, 1008 Invalid, 2712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 2344 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-23 14:14:30,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2023-11-23 14:14:30,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 496. [2023-11-23 14:14:30,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 382 states have (on average 1.6963350785340314) internal successors, (648), 397 states have internal predecessors, (648), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-23 14:14:30,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 829 transitions. [2023-11-23 14:14:30,083 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 829 transitions. Word has length 89 [2023-11-23 14:14:30,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:14:30,083 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 829 transitions. [2023-11-23 14:14:30,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 14:14:30,083 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 829 transitions. [2023-11-23 14:14:30,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-23 14:14:30,088 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:14:30,088 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:14:30,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 14:14:30,089 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:14:30,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:14:30,090 INFO L85 PathProgramCache]: Analyzing trace with hash 2051964723, now seen corresponding path program 1 times [2023-11-23 14:14:30,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:14:30,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838925918] [2023-11-23 14:14:30,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:14:30,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:14:30,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:30,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:14:30,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:30,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:30,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:30,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 14:14:30,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:30,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 14:14:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:30,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:30,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:30,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 14:14:30,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:30,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-23 14:14:30,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:30,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:30,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:30,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:30,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 14:14:30,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:30,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 14:14:30,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:30,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:30,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:30,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 14:14:30,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:30,317 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-23 14:14:30,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:14:30,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838925918] [2023-11-23 14:14:30,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838925918] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:14:30,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:14:30,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 14:14:30,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26436032] [2023-11-23 14:14:30,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:14:30,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 14:14:30,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:14:30,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 14:14:30,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 14:14:30,319 INFO L87 Difference]: Start difference. First operand 496 states and 829 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 14:14:33,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:14:33,083 INFO L93 Difference]: Finished difference Result 1162 states and 1955 transitions. [2023-11-23 14:14:33,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 14:14:33,084 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 90 [2023-11-23 14:14:33,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:14:33,086 INFO L225 Difference]: With dead ends: 1162 [2023-11-23 14:14:33,087 INFO L226 Difference]: Without dead ends: 678 [2023-11-23 14:14:33,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-23 14:14:33,089 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 1238 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 2354 mSolverCounterSat, 366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1285 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 2720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 366 IncrementalHoareTripleChecker+Valid, 2354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-23 14:14:33,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1285 Valid, 1048 Invalid, 2720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [366 Valid, 2354 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-23 14:14:33,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2023-11-23 14:14:33,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 496. [2023-11-23 14:14:33,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 382 states have (on average 1.693717277486911) internal successors, (647), 397 states have internal predecessors, (647), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-23 14:14:33,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 828 transitions. [2023-11-23 14:14:33,137 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 828 transitions. Word has length 90 [2023-11-23 14:14:33,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:14:33,137 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 828 transitions. [2023-11-23 14:14:33,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 14:14:33,137 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 828 transitions. [2023-11-23 14:14:33,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-23 14:14:33,139 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:14:33,139 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:14:33,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 14:14:33,139 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:14:33,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:14:33,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1032732101, now seen corresponding path program 1 times [2023-11-23 14:14:33,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:14:33,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611845888] [2023-11-23 14:14:33,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:14:33,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:14:33,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:33,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:14:33,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:33,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:33,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:33,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 14:14:33,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:33,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-23 14:14:33,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:33,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:33,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:33,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 14:14:33,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:33,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 14:14:33,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:33,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:33,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:33,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:33,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:33,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-23 14:14:33,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:33,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 14:14:33,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:33,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:33,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:33,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-23 14:14:33,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:33,336 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-23 14:14:33,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:14:33,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611845888] [2023-11-23 14:14:33,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611845888] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:14:33,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:14:33,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 14:14:33,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572732449] [2023-11-23 14:14:33,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:14:33,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 14:14:33,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:14:33,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 14:14:33,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 14:14:33,338 INFO L87 Difference]: Start difference. First operand 496 states and 828 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 14:14:35,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:14:35,937 INFO L93 Difference]: Finished difference Result 1162 states and 1954 transitions. [2023-11-23 14:14:35,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 14:14:35,938 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 91 [2023-11-23 14:14:35,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:14:35,940 INFO L225 Difference]: With dead ends: 1162 [2023-11-23 14:14:35,940 INFO L226 Difference]: Without dead ends: 678 [2023-11-23 14:14:35,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-23 14:14:35,943 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 1236 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 2358 mSolverCounterSat, 365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 2723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 2358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-23 14:14:35,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1283 Valid, 1052 Invalid, 2723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [365 Valid, 2358 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-23 14:14:35,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2023-11-23 14:14:35,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 496. [2023-11-23 14:14:35,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 382 states have (on average 1.6910994764397906) internal successors, (646), 397 states have internal predecessors, (646), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-23 14:14:35,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 827 transitions. [2023-11-23 14:14:35,990 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 827 transitions. Word has length 91 [2023-11-23 14:14:35,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:14:35,990 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 827 transitions. [2023-11-23 14:14:35,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 14:14:35,991 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 827 transitions. [2023-11-23 14:14:35,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-23 14:14:35,992 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:14:35,992 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:14:35,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 14:14:35,992 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:14:35,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:14:35,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1660159505, now seen corresponding path program 1 times [2023-11-23 14:14:35,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:14:35,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976438810] [2023-11-23 14:14:35,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:14:35,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:14:36,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:36,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:14:36,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:36,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:36,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:36,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-23 14:14:36,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:36,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-23 14:14:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:36,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:36,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:36,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-23 14:14:36,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:36,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-23 14:14:36,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:36,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:36,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:36,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:36,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:36,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 14:14:36,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:36,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-23 14:14:36,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:36,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:36,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 14:14:36,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:36,279 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-23 14:14:36,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:14:36,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976438810] [2023-11-23 14:14:36,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976438810] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:14:36,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:14:36,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 14:14:36,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204599550] [2023-11-23 14:14:36,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:14:36,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 14:14:36,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:14:36,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 14:14:36,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 14:14:36,282 INFO L87 Difference]: Start difference. First operand 496 states and 827 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 14:14:38,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:14:38,736 INFO L93 Difference]: Finished difference Result 1162 states and 1953 transitions. [2023-11-23 14:14:38,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 14:14:38,736 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 92 [2023-11-23 14:14:38,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:14:38,739 INFO L225 Difference]: With dead ends: 1162 [2023-11-23 14:14:38,739 INFO L226 Difference]: Without dead ends: 678 [2023-11-23 14:14:38,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-23 14:14:38,742 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 1237 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 2334 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1284 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 2702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 2334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-23 14:14:38,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1284 Valid, 1024 Invalid, 2702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 2334 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-23 14:14:38,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2023-11-23 14:14:38,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 496. [2023-11-23 14:14:38,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 382 states have (on average 1.6884816753926701) internal successors, (645), 397 states have internal predecessors, (645), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-23 14:14:38,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 826 transitions. [2023-11-23 14:14:38,792 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 826 transitions. Word has length 92 [2023-11-23 14:14:38,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:14:38,792 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 826 transitions. [2023-11-23 14:14:38,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 14:14:38,793 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 826 transitions. [2023-11-23 14:14:38,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-23 14:14:38,794 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:14:38,794 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:14:38,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 14:14:38,795 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:14:38,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:14:38,795 INFO L85 PathProgramCache]: Analyzing trace with hash -401904767, now seen corresponding path program 1 times [2023-11-23 14:14:38,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:14:38,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028639592] [2023-11-23 14:14:38,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:14:38,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:14:38,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:38,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:14:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:39,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:39,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:39,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 14:14:39,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:39,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 14:14:39,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:39,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:39,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:39,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 14:14:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:39,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-23 14:14:39,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:39,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:39,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:39,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:39,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 14:14:39,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:39,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-23 14:14:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:39,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:39,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:39,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-23 14:14:39,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:39,076 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-23 14:14:39,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:14:39,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028639592] [2023-11-23 14:14:39,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028639592] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:14:39,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:14:39,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 14:14:39,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095686583] [2023-11-23 14:14:39,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:14:39,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 14:14:39,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:14:39,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 14:14:39,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 14:14:39,078 INFO L87 Difference]: Start difference. First operand 496 states and 826 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-23 14:14:42,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:14:42,413 INFO L93 Difference]: Finished difference Result 1182 states and 1987 transitions. [2023-11-23 14:14:42,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 14:14:42,414 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 93 [2023-11-23 14:14:42,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:14:42,417 INFO L225 Difference]: With dead ends: 1182 [2023-11-23 14:14:42,417 INFO L226 Difference]: Without dead ends: 702 [2023-11-23 14:14:42,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2023-11-23 14:14:42,420 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 1354 mSDsluCounter, 1643 mSDsCounter, 0 mSdLazyCounter, 4489 mSolverCounterSat, 375 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1401 SdHoareTripleChecker+Valid, 1958 SdHoareTripleChecker+Invalid, 4864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 375 IncrementalHoareTripleChecker+Valid, 4489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-23 14:14:42,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1401 Valid, 1958 Invalid, 4864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [375 Valid, 4489 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-23 14:14:42,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2023-11-23 14:14:42,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 508. [2023-11-23 14:14:42,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 391 states have (on average 1.6854219948849105) internal successors, (659), 408 states have internal predecessors, (659), 92 states have call successors, (92), 23 states have call predecessors, (92), 24 states have return successors, (94), 89 states have call predecessors, (94), 91 states have call successors, (94) [2023-11-23 14:14:42,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 845 transitions. [2023-11-23 14:14:42,476 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 845 transitions. Word has length 93 [2023-11-23 14:14:42,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:14:42,476 INFO L495 AbstractCegarLoop]: Abstraction has 508 states and 845 transitions. [2023-11-23 14:14:42,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-23 14:14:42,476 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 845 transitions. [2023-11-23 14:14:42,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-23 14:14:42,478 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:14:42,478 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:14:42,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 14:14:42,479 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:14:42,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:14:42,479 INFO L85 PathProgramCache]: Analyzing trace with hash 381474208, now seen corresponding path program 1 times [2023-11-23 14:14:42,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:14:42,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166301451] [2023-11-23 14:14:42,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:14:42,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:14:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:42,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:14:42,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:42,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:42,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:42,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 14:14:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:42,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 14:14:42,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:42,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:42,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:42,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 14:14:42,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:42,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-23 14:14:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:42,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:42,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:42,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:42,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:42,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 14:14:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:42,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-23 14:14:42,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:42,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:42,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:42,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-23 14:14:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:42,674 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-23 14:14:42,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:14:42,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166301451] [2023-11-23 14:14:42,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166301451] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:14:42,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:14:42,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 14:14:42,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691862118] [2023-11-23 14:14:42,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:14:42,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 14:14:42,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:14:42,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 14:14:42,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 14:14:42,676 INFO L87 Difference]: Start difference. First operand 508 states and 845 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 14:14:45,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:14:45,463 INFO L93 Difference]: Finished difference Result 1221 states and 2056 transitions. [2023-11-23 14:14:45,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 14:14:45,463 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 93 [2023-11-23 14:14:45,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:14:45,466 INFO L225 Difference]: With dead ends: 1221 [2023-11-23 14:14:45,466 INFO L226 Difference]: Without dead ends: 733 [2023-11-23 14:14:45,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-11-23 14:14:45,468 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 1363 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 2270 mSolverCounterSat, 379 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1410 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 2649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 379 IncrementalHoareTripleChecker+Valid, 2270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-23 14:14:45,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1410 Valid, 996 Invalid, 2649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [379 Valid, 2270 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-23 14:14:45,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2023-11-23 14:14:45,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 527. [2023-11-23 14:14:45,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 409 states have (on average 1.6797066014669926) internal successors, (687), 426 states have internal predecessors, (687), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2023-11-23 14:14:45,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 872 transitions. [2023-11-23 14:14:45,519 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 872 transitions. Word has length 93 [2023-11-23 14:14:45,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:14:45,520 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 872 transitions. [2023-11-23 14:14:45,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 14:14:45,520 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 872 transitions. [2023-11-23 14:14:45,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-23 14:14:45,521 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:14:45,522 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:14:45,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 14:14:45,522 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:14:45,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:14:45,522 INFO L85 PathProgramCache]: Analyzing trace with hash -336270537, now seen corresponding path program 1 times [2023-11-23 14:14:45,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:14:45,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241115110] [2023-11-23 14:14:45,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:14:45,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:14:45,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:45,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:14:45,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:45,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:45,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:45,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 14:14:45,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:45,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 14:14:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:45,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:45,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:45,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-23 14:14:45,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:45,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 14:14:45,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:45,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:45,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:45,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:45,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:45,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-23 14:14:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:45,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 14:14:45,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:45,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:45,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:45,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 14:14:45,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:45,721 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-23 14:14:45,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:14:45,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241115110] [2023-11-23 14:14:45,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241115110] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:14:45,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:14:45,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 14:14:45,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015375702] [2023-11-23 14:14:45,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:14:45,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 14:14:45,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:14:45,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 14:14:45,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 14:14:45,723 INFO L87 Difference]: Start difference. First operand 527 states and 872 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 14:14:48,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:14:48,376 INFO L93 Difference]: Finished difference Result 1196 states and 1991 transitions. [2023-11-23 14:14:48,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 14:14:48,376 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 94 [2023-11-23 14:14:48,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:14:48,380 INFO L225 Difference]: With dead ends: 1196 [2023-11-23 14:14:48,380 INFO L226 Difference]: Without dead ends: 725 [2023-11-23 14:14:48,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-23 14:14:48,383 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 1315 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 2274 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1362 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 2644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 2274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-23 14:14:48,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1362 Valid, 1045 Invalid, 2644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 2274 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-23 14:14:48,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2023-11-23 14:14:48,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 527. [2023-11-23 14:14:48,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 409 states have (on average 1.667481662591687) internal successors, (682), 426 states have internal predecessors, (682), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2023-11-23 14:14:48,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 867 transitions. [2023-11-23 14:14:48,437 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 867 transitions. Word has length 94 [2023-11-23 14:14:48,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:14:48,438 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 867 transitions. [2023-11-23 14:14:48,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 14:14:48,438 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 867 transitions. [2023-11-23 14:14:48,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-23 14:14:48,441 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:14:48,441 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:14:48,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 14:14:48,441 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:14:48,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:14:48,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1071227323, now seen corresponding path program 1 times [2023-11-23 14:14:48,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:14:48,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486566167] [2023-11-23 14:14:48,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:14:48,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:14:48,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:48,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:14:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:48,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:48,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:48,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 14:14:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:48,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-23 14:14:48,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:48,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:48,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:48,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-23 14:14:48,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:48,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 14:14:48,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:48,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:48,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:48,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:48,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:48,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-23 14:14:48,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:48,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-23 14:14:48,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:48,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:48,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:48,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-23 14:14:48,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:48,631 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-23 14:14:48,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:14:48,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486566167] [2023-11-23 14:14:48,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486566167] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:14:48,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:14:48,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 14:14:48,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78653415] [2023-11-23 14:14:48,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:14:48,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 14:14:48,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:14:48,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 14:14:48,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 14:14:48,632 INFO L87 Difference]: Start difference. First operand 527 states and 867 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 14:14:51,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:14:51,135 INFO L93 Difference]: Finished difference Result 1196 states and 1986 transitions. [2023-11-23 14:14:51,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 14:14:51,136 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 95 [2023-11-23 14:14:51,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:14:51,139 INFO L225 Difference]: With dead ends: 1196 [2023-11-23 14:14:51,139 INFO L226 Difference]: Without dead ends: 725 [2023-11-23 14:14:51,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-23 14:14:51,141 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 1323 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 2240 mSolverCounterSat, 374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 2614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 374 IncrementalHoareTripleChecker+Valid, 2240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-23 14:14:51,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 974 Invalid, 2614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [374 Valid, 2240 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-23 14:14:51,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2023-11-23 14:14:51,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 527. [2023-11-23 14:14:51,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 409 states have (on average 1.6552567237163813) internal successors, (677), 426 states have internal predecessors, (677), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2023-11-23 14:14:51,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 862 transitions. [2023-11-23 14:14:51,233 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 862 transitions. Word has length 95 [2023-11-23 14:14:51,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:14:51,234 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 862 transitions. [2023-11-23 14:14:51,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 14:14:51,234 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 862 transitions. [2023-11-23 14:14:51,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-23 14:14:51,236 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:14:51,236 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:14:51,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 14:14:51,237 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:14:51,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:14:51,237 INFO L85 PathProgramCache]: Analyzing trace with hash -697492516, now seen corresponding path program 1 times [2023-11-23 14:14:51,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:14:51,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592534849] [2023-11-23 14:14:51,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:14:51,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:14:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:51,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:14:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:51,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:51,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:51,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 14:14:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:51,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 14:14:51,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:51,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:51,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-23 14:14:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:51,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 14:14:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:51,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:51,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:51,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:51,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-23 14:14:51,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:51,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-23 14:14:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:51,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:51,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:51,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 14:14:51,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:51,495 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-23 14:14:51,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:14:51,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592534849] [2023-11-23 14:14:51,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592534849] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:14:51,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:14:51,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 14:14:51,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98698632] [2023-11-23 14:14:51,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:14:51,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 14:14:51,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:14:51,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 14:14:51,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 14:14:51,497 INFO L87 Difference]: Start difference. First operand 527 states and 862 transitions. Second operand has 9 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-23 14:14:55,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:14:55,289 INFO L93 Difference]: Finished difference Result 1196 states and 1978 transitions. [2023-11-23 14:14:55,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 14:14:55,290 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 96 [2023-11-23 14:14:55,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:14:55,293 INFO L225 Difference]: With dead ends: 1196 [2023-11-23 14:14:55,294 INFO L226 Difference]: Without dead ends: 739 [2023-11-23 14:14:55,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-11-23 14:14:55,296 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 1295 mSDsluCounter, 1597 mSDsCounter, 0 mSdLazyCounter, 4432 mSolverCounterSat, 378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1342 SdHoareTripleChecker+Valid, 1902 SdHoareTripleChecker+Invalid, 4810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 378 IncrementalHoareTripleChecker+Valid, 4432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-23 14:14:55,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1342 Valid, 1902 Invalid, 4810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [378 Valid, 4432 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-23 14:14:55,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2023-11-23 14:14:55,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 529. [2023-11-23 14:14:55,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 411 states have (on average 1.6496350364963503) internal successors, (678), 428 states have internal predecessors, (678), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2023-11-23 14:14:55,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 863 transitions. [2023-11-23 14:14:55,387 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 863 transitions. Word has length 96 [2023-11-23 14:14:55,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:14:55,388 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 863 transitions. [2023-11-23 14:14:55,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-23 14:14:55,388 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 863 transitions. [2023-11-23 14:14:55,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-23 14:14:55,390 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:14:55,390 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:14:55,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 14:14:55,390 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:14:55,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:14:55,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1955209916, now seen corresponding path program 1 times [2023-11-23 14:14:55,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:14:55,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841172036] [2023-11-23 14:14:55,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:14:55,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:14:55,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:55,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:14:55,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:55,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:55,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:55,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 14:14:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:55,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 14:14:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:55,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:55,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-23 14:14:55,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:55,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 14:14:55,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:55,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:55,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:55,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:55,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:55,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-23 14:14:55,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:55,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-23 14:14:55,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:55,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:55,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:55,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 14:14:55,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:55,645 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-23 14:14:55,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:14:55,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841172036] [2023-11-23 14:14:55,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841172036] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:14:55,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:14:55,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 14:14:55,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399233375] [2023-11-23 14:14:55,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:14:55,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 14:14:55,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:14:55,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 14:14:55,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 14:14:55,647 INFO L87 Difference]: Start difference. First operand 529 states and 863 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 14:14:58,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:14:58,060 INFO L93 Difference]: Finished difference Result 1200 states and 1981 transitions. [2023-11-23 14:14:58,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 14:14:58,060 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 96 [2023-11-23 14:14:58,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:14:58,063 INFO L225 Difference]: With dead ends: 1200 [2023-11-23 14:14:58,063 INFO L226 Difference]: Without dead ends: 727 [2023-11-23 14:14:58,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-23 14:14:58,065 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 1299 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 2237 mSolverCounterSat, 371 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1346 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 2608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 371 IncrementalHoareTripleChecker+Valid, 2237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-23 14:14:58,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1346 Valid, 1020 Invalid, 2608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [371 Valid, 2237 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-23 14:14:58,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2023-11-23 14:14:58,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 529. [2023-11-23 14:14:58,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 411 states have (on average 1.637469586374696) internal successors, (673), 428 states have internal predecessors, (673), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2023-11-23 14:14:58,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 858 transitions. [2023-11-23 14:14:58,119 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 858 transitions. Word has length 96 [2023-11-23 14:14:58,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:14:58,119 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 858 transitions. [2023-11-23 14:14:58,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 14:14:58,119 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 858 transitions. [2023-11-23 14:14:58,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-23 14:14:58,121 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:14:58,121 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:14:58,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 14:14:58,121 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:14:58,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:14:58,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1964637880, now seen corresponding path program 1 times [2023-11-23 14:14:58,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:14:58,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657965048] [2023-11-23 14:14:58,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:14:58,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:14:58,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:58,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:14:58,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:58,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:58,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:58,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 14:14:58,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:58,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-23 14:14:58,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:58,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:58,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:58,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 14:14:58,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:58,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 14:14:58,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:58,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:58,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:58,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:58,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:58,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 14:14:58,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:58,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 14:14:58,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:58,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:14:58,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:58,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-23 14:14:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:14:58,337 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-23 14:14:58,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:14:58,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657965048] [2023-11-23 14:14:58,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657965048] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:14:58,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:14:58,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 14:14:58,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726368327] [2023-11-23 14:14:58,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:14:58,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 14:14:58,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:14:58,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 14:14:58,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 14:14:58,339 INFO L87 Difference]: Start difference. First operand 529 states and 858 transitions. Second operand has 9 states, 8 states have (on average 7.375) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-23 14:15:01,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:15:01,736 INFO L93 Difference]: Finished difference Result 1218 states and 2001 transitions. [2023-11-23 14:15:01,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 14:15:01,737 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 97 [2023-11-23 14:15:01,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:15:01,753 INFO L225 Difference]: With dead ends: 1218 [2023-11-23 14:15:01,756 INFO L226 Difference]: Without dead ends: 757 [2023-11-23 14:15:01,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-11-23 14:15:01,772 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 1314 mSDsluCounter, 1528 mSDsCounter, 0 mSdLazyCounter, 4327 mSolverCounterSat, 382 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 1820 SdHoareTripleChecker+Invalid, 4709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 382 IncrementalHoareTripleChecker+Valid, 4327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-23 14:15:01,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 1820 Invalid, 4709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [382 Valid, 4327 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-23 14:15:01,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2023-11-23 14:15:01,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 535. [2023-11-23 14:15:01,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 417 states have (on average 1.6258992805755397) internal successors, (678), 434 states have internal predecessors, (678), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2023-11-23 14:15:01,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 863 transitions. [2023-11-23 14:15:01,858 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 863 transitions. Word has length 97 [2023-11-23 14:15:01,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:15:01,858 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 863 transitions. [2023-11-23 14:15:01,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-23 14:15:01,858 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 863 transitions. [2023-11-23 14:15:01,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-23 14:15:01,860 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:15:01,860 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:15:01,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-23 14:15:01,860 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:15:01,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:15:01,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1325777642, now seen corresponding path program 1 times [2023-11-23 14:15:01,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:15:01,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648139960] [2023-11-23 14:15:01,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:01,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:15:01,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:02,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:15:02,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:02,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:02,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 14:15:02,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:02,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-23 14:15:02,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:02,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:02,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:02,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 14:15:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:02,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 14:15:02,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:02,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:02,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:02,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:02,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:02,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 14:15:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:02,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 14:15:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:02,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:02,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:02,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-23 14:15:02,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:02,049 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-23 14:15:02,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:15:02,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648139960] [2023-11-23 14:15:02,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648139960] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:15:02,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:15:02,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 14:15:02,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270393879] [2023-11-23 14:15:02,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:15:02,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 14:15:02,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:15:02,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 14:15:02,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 14:15:02,051 INFO L87 Difference]: Start difference. First operand 535 states and 863 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 14:15:04,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:15:04,601 INFO L93 Difference]: Finished difference Result 1215 states and 1987 transitions. [2023-11-23 14:15:04,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 14:15:04,602 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 97 [2023-11-23 14:15:04,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:15:04,604 INFO L225 Difference]: With dead ends: 1215 [2023-11-23 14:15:04,605 INFO L226 Difference]: Without dead ends: 736 [2023-11-23 14:15:04,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-23 14:15:04,606 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 1269 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 2242 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1316 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 2609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 2242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-23 14:15:04,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1316 Valid, 1090 Invalid, 2609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [367 Valid, 2242 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-23 14:15:04,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2023-11-23 14:15:04,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 535. [2023-11-23 14:15:04,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 417 states have (on average 1.6139088729016786) internal successors, (673), 434 states have internal predecessors, (673), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2023-11-23 14:15:04,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 858 transitions. [2023-11-23 14:15:04,665 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 858 transitions. Word has length 97 [2023-11-23 14:15:04,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:15:04,665 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 858 transitions. [2023-11-23 14:15:04,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 14:15:04,665 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 858 transitions. [2023-11-23 14:15:04,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-23 14:15:04,667 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:15:04,667 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:15:04,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-23 14:15:04,667 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:15:04,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:15:04,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1220889697, now seen corresponding path program 1 times [2023-11-23 14:15:04,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:15:04,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276347502] [2023-11-23 14:15:04,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:04,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:15:04,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:04,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:15:04,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:04,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:04,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 14:15:04,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:04,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-23 14:15:04,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:04,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:04,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:04,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-23 14:15:04,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:04,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-23 14:15:04,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:04,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:04,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:04,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:04,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:04,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 14:15:04,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:04,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-23 14:15:04,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:04,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:04,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 14:15:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:04,912 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-23 14:15:04,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:15:04,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276347502] [2023-11-23 14:15:04,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276347502] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:15:04,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:15:04,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 14:15:04,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474716041] [2023-11-23 14:15:04,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:15:04,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 14:15:04,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:15:04,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 14:15:04,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 14:15:04,914 INFO L87 Difference]: Start difference. First operand 535 states and 858 transitions. Second operand has 9 states, 8 states have (on average 7.5) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-23 14:15:08,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:15:08,661 INFO L93 Difference]: Finished difference Result 1230 states and 2002 transitions. [2023-11-23 14:15:08,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 14:15:08,662 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 98 [2023-11-23 14:15:08,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:15:08,665 INFO L225 Difference]: With dead ends: 1230 [2023-11-23 14:15:08,665 INFO L226 Difference]: Without dead ends: 766 [2023-11-23 14:15:08,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-11-23 14:15:08,667 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 1289 mSDsluCounter, 1608 mSDsCounter, 0 mSdLazyCounter, 4306 mSolverCounterSat, 383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 1915 SdHoareTripleChecker+Invalid, 4689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 4306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-23 14:15:08,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1336 Valid, 1915 Invalid, 4689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [383 Valid, 4306 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-23 14:15:08,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2023-11-23 14:15:08,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 543. [2023-11-23 14:15:08,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 425 states have (on average 1.6) internal successors, (680), 442 states have internal predecessors, (680), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2023-11-23 14:15:08,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 865 transitions. [2023-11-23 14:15:08,750 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 865 transitions. Word has length 98 [2023-11-23 14:15:08,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:15:08,750 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 865 transitions. [2023-11-23 14:15:08,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-23 14:15:08,750 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 865 transitions. [2023-11-23 14:15:08,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-23 14:15:08,752 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:15:08,753 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:15:08,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-23 14:15:08,753 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:15:08,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:15:08,754 INFO L85 PathProgramCache]: Analyzing trace with hash -966459839, now seen corresponding path program 1 times [2023-11-23 14:15:08,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:15:08,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098862995] [2023-11-23 14:15:08,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:08,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:15:08,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:08,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:15:08,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:08,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:08,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:08,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 14:15:08,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:08,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-23 14:15:08,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:08,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:08,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-23 14:15:08,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:08,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-23 14:15:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:08,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:08,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:08,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:08,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 14:15:08,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:08,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-23 14:15:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:08,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:08,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:08,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 14:15:08,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:08,951 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-23 14:15:08,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:15:08,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098862995] [2023-11-23 14:15:08,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098862995] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:15:08,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:15:08,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 14:15:08,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854307186] [2023-11-23 14:15:08,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:15:08,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 14:15:08,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:15:08,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 14:15:08,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 14:15:08,953 INFO L87 Difference]: Start difference. First operand 543 states and 865 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 14:15:11,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:15:11,780 INFO L93 Difference]: Finished difference Result 1271 states and 2044 transitions. [2023-11-23 14:15:11,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 14:15:11,780 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 98 [2023-11-23 14:15:11,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:15:11,783 INFO L225 Difference]: With dead ends: 1271 [2023-11-23 14:15:11,783 INFO L226 Difference]: Without dead ends: 722 [2023-11-23 14:15:11,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-23 14:15:11,785 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 1217 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 2244 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1264 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 2616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 2244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-23 14:15:11,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1264 Valid, 1026 Invalid, 2616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 2244 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-23 14:15:11,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2023-11-23 14:15:11,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 525. [2023-11-23 14:15:11,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 410 states have (on average 1.604878048780488) internal successors, (658), 425 states have internal predecessors, (658), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-23 14:15:11,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 839 transitions. [2023-11-23 14:15:11,841 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 839 transitions. Word has length 98 [2023-11-23 14:15:11,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:15:11,841 INFO L495 AbstractCegarLoop]: Abstraction has 525 states and 839 transitions. [2023-11-23 14:15:11,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 14:15:11,841 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 839 transitions. [2023-11-23 14:15:11,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-23 14:15:11,843 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:15:11,843 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:15:11,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-23 14:15:11,843 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:15:11,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:15:11,843 INFO L85 PathProgramCache]: Analyzing trace with hash 705357677, now seen corresponding path program 1 times [2023-11-23 14:15:11,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:15:11,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581114026] [2023-11-23 14:15:11,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:11,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:15:11,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:11,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:15:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:12,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:12,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 14:15:12,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:12,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 14:15:12,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:12,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:12,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:12,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 14:15:12,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:12,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 14:15:12,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:12,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:12,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:12,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:12,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:12,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 14:15:12,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:12,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 14:15:12,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:12,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:12,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 14:15:12,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:12,079 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-23 14:15:12,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:15:12,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581114026] [2023-11-23 14:15:12,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581114026] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:15:12,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:15:12,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 14:15:12,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512609709] [2023-11-23 14:15:12,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:15:12,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 14:15:12,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:15:12,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 14:15:12,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 14:15:12,081 INFO L87 Difference]: Start difference. First operand 525 states and 839 transitions. Second operand has 9 states, 8 states have (on average 7.625) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-23 14:15:15,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:15:15,631 INFO L93 Difference]: Finished difference Result 1214 states and 1965 transitions. [2023-11-23 14:15:15,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 14:15:15,632 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 99 [2023-11-23 14:15:15,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:15:15,635 INFO L225 Difference]: With dead ends: 1214 [2023-11-23 14:15:15,648 INFO L226 Difference]: Without dead ends: 748 [2023-11-23 14:15:15,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-11-23 14:15:15,664 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 1246 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 4259 mSolverCounterSat, 374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 1999 SdHoareTripleChecker+Invalid, 4633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 374 IncrementalHoareTripleChecker+Valid, 4259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-23 14:15:15,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1293 Valid, 1999 Invalid, 4633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [374 Valid, 4259 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-23 14:15:15,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2023-11-23 14:15:15,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 535. [2023-11-23 14:15:15,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 420 states have (on average 1.5904761904761904) internal successors, (668), 435 states have internal predecessors, (668), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-23 14:15:15,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 849 transitions. [2023-11-23 14:15:15,734 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 849 transitions. Word has length 99 [2023-11-23 14:15:15,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:15:15,734 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 849 transitions. [2023-11-23 14:15:15,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-23 14:15:15,734 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 849 transitions. [2023-11-23 14:15:15,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-23 14:15:15,736 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:15:15,736 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:15:15,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-23 14:15:15,736 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:15:15,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:15:15,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1683885814, now seen corresponding path program 1 times [2023-11-23 14:15:15,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:15:15,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589061076] [2023-11-23 14:15:15,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:15,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:15:15,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:15,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:15:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:15,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:15,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:15,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 14:15:15,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:15,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 14:15:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:15,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:15,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-23 14:15:15,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:15,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 14:15:15,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:15,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:15,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:15,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:15,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-23 14:15:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:15,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-23 14:15:15,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:15,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:15,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-23 14:15:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:15,981 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-23 14:15:15,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:15:15,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589061076] [2023-11-23 14:15:15,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589061076] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 14:15:15,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003301726] [2023-11-23 14:15:15,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:15,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 14:15:15,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 14:15:15,984 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 14:15:15,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 14:15:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:16,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 1186 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 14:15:16,211 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 14:15:16,310 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 14:15:16,310 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 14:15:16,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003301726] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:15:16,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 14:15:16,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-11-23 14:15:16,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731265249] [2023-11-23 14:15:16,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:15:16,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 14:15:16,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:15:16,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 14:15:16,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-11-23 14:15:16,312 INFO L87 Difference]: Start difference. First operand 535 states and 849 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 14:15:16,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:15:16,721 INFO L93 Difference]: Finished difference Result 1008 states and 1646 transitions. [2023-11-23 14:15:16,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 14:15:16,721 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 100 [2023-11-23 14:15:16,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:15:16,723 INFO L225 Difference]: With dead ends: 1008 [2023-11-23 14:15:16,723 INFO L226 Difference]: Without dead ends: 543 [2023-11-23 14:15:16,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-23 14:15:16,726 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 747 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 1925 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 14:15:16,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 1925 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 14:15:16,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2023-11-23 14:15:16,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 543. [2023-11-23 14:15:16,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 427 states have (on average 1.5925058548009368) internal successors, (680), 442 states have internal predecessors, (680), 91 states have call successors, (91), 25 states have call predecessors, (91), 24 states have return successors, (91), 88 states have call predecessors, (91), 90 states have call successors, (91) [2023-11-23 14:15:16,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 862 transitions. [2023-11-23 14:15:16,787 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 862 transitions. Word has length 100 [2023-11-23 14:15:16,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:15:16,787 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 862 transitions. [2023-11-23 14:15:16,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 14:15:16,788 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 862 transitions. [2023-11-23 14:15:16,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-23 14:15:16,789 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:15:16,789 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:15:16,805 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-23 14:15:17,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-23 14:15:17,002 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:15:17,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:15:17,002 INFO L85 PathProgramCache]: Analyzing trace with hash 359507479, now seen corresponding path program 1 times [2023-11-23 14:15:17,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:15:17,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459416521] [2023-11-23 14:15:17,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:17,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:15:17,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:17,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:15:17,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:17,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:17,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:17,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 14:15:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:17,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 14:15:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:17,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:17,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-23 14:15:17,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:17,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 14:15:17,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:17,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:17,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:17,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:17,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:17,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 14:15:17,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:17,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-23 14:15:17,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:17,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:17,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:17,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-23 14:15:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:17,235 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-23 14:15:17,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:15:17,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459416521] [2023-11-23 14:15:17,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459416521] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 14:15:17,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [319597739] [2023-11-23 14:15:17,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:17,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 14:15:17,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 14:15:17,251 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 14:15:17,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 14:15:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:17,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 1189 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 14:15:17,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 14:15:17,562 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-23 14:15:17,562 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 14:15:17,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [319597739] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:15:17,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 14:15:17,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-11-23 14:15:17,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653683370] [2023-11-23 14:15:17,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:15:17,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 14:15:17,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:15:17,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 14:15:17,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-11-23 14:15:17,564 INFO L87 Difference]: Start difference. First operand 543 states and 862 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 14:15:17,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:15:17,916 INFO L93 Difference]: Finished difference Result 1024 states and 1669 transitions. [2023-11-23 14:15:17,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 14:15:17,916 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 103 [2023-11-23 14:15:17,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:15:17,919 INFO L225 Difference]: With dead ends: 1024 [2023-11-23 14:15:17,919 INFO L226 Difference]: Without dead ends: 551 [2023-11-23 14:15:17,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-23 14:15:17,922 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 757 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 1925 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 14:15:17,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 1925 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 14:15:17,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2023-11-23 14:15:18,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2023-11-23 14:15:18,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 434 states have (on average 1.5944700460829493) internal successors, (692), 449 states have internal predecessors, (692), 91 states have call successors, (91), 26 states have call predecessors, (91), 25 states have return successors, (92), 88 states have call predecessors, (92), 90 states have call successors, (92) [2023-11-23 14:15:18,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 875 transitions. [2023-11-23 14:15:18,025 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 875 transitions. Word has length 103 [2023-11-23 14:15:18,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:15:18,026 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 875 transitions. [2023-11-23 14:15:18,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 14:15:18,027 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 875 transitions. [2023-11-23 14:15:18,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-23 14:15:18,029 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:15:18,029 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:15:18,062 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-23 14:15:18,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-23 14:15:18,242 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:15:18,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:15:18,244 INFO L85 PathProgramCache]: Analyzing trace with hash -545412142, now seen corresponding path program 1 times [2023-11-23 14:15:18,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:15:18,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287473081] [2023-11-23 14:15:18,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:18,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:15:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:18,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:15:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:18,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:18,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:18,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 14:15:18,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:18,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 14:15:18,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:18,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:18,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:18,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 14:15:18,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:18,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 14:15:18,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:18,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:18,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:18,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:18,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:18,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-23 14:15:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:18,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-23 14:15:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:18,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:18,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:18,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-23 14:15:18,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:18,452 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-23 14:15:18,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:15:18,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287473081] [2023-11-23 14:15:18,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287473081] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 14:15:18,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573010361] [2023-11-23 14:15:18,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:18,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 14:15:18,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 14:15:18,454 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 14:15:18,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 14:15:18,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:18,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 1192 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 14:15:18,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 14:15:18,755 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-23 14:15:18,755 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 14:15:18,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573010361] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:15:18,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 14:15:18,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-11-23 14:15:18,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150762445] [2023-11-23 14:15:18,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:15:18,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 14:15:18,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:15:18,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 14:15:18,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-11-23 14:15:18,757 INFO L87 Difference]: Start difference. First operand 551 states and 875 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 14:15:19,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:15:19,166 INFO L93 Difference]: Finished difference Result 1040 states and 1692 transitions. [2023-11-23 14:15:19,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 14:15:19,167 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 106 [2023-11-23 14:15:19,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:15:19,169 INFO L225 Difference]: With dead ends: 1040 [2023-11-23 14:15:19,169 INFO L226 Difference]: Without dead ends: 559 [2023-11-23 14:15:19,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-23 14:15:19,172 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 743 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 1925 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 14:15:19,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 1925 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 14:15:19,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2023-11-23 14:15:19,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2023-11-23 14:15:19,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 441 states have (on average 1.5963718820861679) internal successors, (704), 456 states have internal predecessors, (704), 91 states have call successors, (91), 27 states have call predecessors, (91), 26 states have return successors, (93), 88 states have call predecessors, (93), 90 states have call successors, (93) [2023-11-23 14:15:19,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 888 transitions. [2023-11-23 14:15:19,233 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 888 transitions. Word has length 106 [2023-11-23 14:15:19,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:15:19,233 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 888 transitions. [2023-11-23 14:15:19,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 14:15:19,234 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 888 transitions. [2023-11-23 14:15:19,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-23 14:15:19,235 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:15:19,235 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:15:19,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-23 14:15:19,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 14:15:19,449 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:15:19,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:15:19,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1374251835, now seen corresponding path program 1 times [2023-11-23 14:15:19,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:15:19,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148175455] [2023-11-23 14:15:19,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:19,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:15:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:19,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:15:19,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:19,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:19,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:19,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 14:15:19,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:19,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 14:15:19,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:19,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:19,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:19,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 14:15:19,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:19,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 14:15:19,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:19,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:19,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:19,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:19,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:19,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-23 14:15:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:19,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-23 14:15:19,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:19,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:19,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:19,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-23 14:15:19,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:19,700 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-23 14:15:19,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:15:19,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148175455] [2023-11-23 14:15:19,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148175455] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 14:15:19,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009913488] [2023-11-23 14:15:19,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:19,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 14:15:19,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 14:15:19,704 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 14:15:19,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 14:15:19,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:19,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 1195 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 14:15:19,913 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 14:15:19,995 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-23 14:15:19,995 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 14:15:19,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009913488] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:15:19,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 14:15:19,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-11-23 14:15:19,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845680325] [2023-11-23 14:15:19,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:15:19,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 14:15:19,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:15:19,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 14:15:19,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-11-23 14:15:19,998 INFO L87 Difference]: Start difference. First operand 559 states and 888 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 14:15:20,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:15:20,330 INFO L93 Difference]: Finished difference Result 1056 states and 1715 transitions. [2023-11-23 14:15:20,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 14:15:20,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2023-11-23 14:15:20,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:15:20,333 INFO L225 Difference]: With dead ends: 1056 [2023-11-23 14:15:20,333 INFO L226 Difference]: Without dead ends: 567 [2023-11-23 14:15:20,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-23 14:15:20,335 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 751 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 1925 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 14:15:20,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [769 Valid, 1925 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 14:15:20,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2023-11-23 14:15:20,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 567. [2023-11-23 14:15:20,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 448 states have (on average 1.5982142857142858) internal successors, (716), 463 states have internal predecessors, (716), 91 states have call successors, (91), 28 states have call predecessors, (91), 27 states have return successors, (94), 88 states have call predecessors, (94), 90 states have call successors, (94) [2023-11-23 14:15:20,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 901 transitions. [2023-11-23 14:15:20,399 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 901 transitions. Word has length 109 [2023-11-23 14:15:20,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:15:20,399 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 901 transitions. [2023-11-23 14:15:20,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 14:15:20,399 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 901 transitions. [2023-11-23 14:15:20,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-23 14:15:20,400 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:15:20,401 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:15:20,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 14:15:20,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 14:15:20,607 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:15:20,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:15:20,608 INFO L85 PathProgramCache]: Analyzing trace with hash -373371218, now seen corresponding path program 1 times [2023-11-23 14:15:20,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:15:20,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895515344] [2023-11-23 14:15:20,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:20,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:15:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:20,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:15:20,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:20,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:20,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 14:15:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:20,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 14:15:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:21,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:21,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:21,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 14:15:21,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:21,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-23 14:15:21,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:21,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:21,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:21,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:21,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:21,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-23 14:15:21,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:21,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-23 14:15:21,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:21,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:21,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:21,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-23 14:15:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:21,051 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-23 14:15:21,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:15:21,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895515344] [2023-11-23 14:15:21,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895515344] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 14:15:21,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877395281] [2023-11-23 14:15:21,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:21,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 14:15:21,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 14:15:21,053 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 14:15:21,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 14:15:21,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:21,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 1198 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 14:15:21,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 14:15:21,365 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 14:15:21,365 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 14:15:21,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877395281] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:15:21,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 14:15:21,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [12] total 13 [2023-11-23 14:15:21,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327152086] [2023-11-23 14:15:21,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:15:21,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 14:15:21,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:15:21,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 14:15:21,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-11-23 14:15:21,367 INFO L87 Difference]: Start difference. First operand 567 states and 901 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 14:15:21,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:15:21,513 INFO L93 Difference]: Finished difference Result 1231 states and 1965 transitions. [2023-11-23 14:15:21,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 14:15:21,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 112 [2023-11-23 14:15:21,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:15:21,516 INFO L225 Difference]: With dead ends: 1231 [2023-11-23 14:15:21,517 INFO L226 Difference]: Without dead ends: 734 [2023-11-23 14:15:21,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-11-23 14:15:21,519 INFO L413 NwaCegarLoop]: 867 mSDtfsCounter, 525 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 1239 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 14:15:21,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 1239 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 14:15:21,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2023-11-23 14:15:21,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 732. [2023-11-23 14:15:21,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 578 states have (on average 1.5640138408304498) internal successors, (904), 591 states have internal predecessors, (904), 113 states have call successors, (113), 42 states have call predecessors, (113), 40 states have return successors, (128), 110 states have call predecessors, (128), 111 states have call successors, (128) [2023-11-23 14:15:21,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1145 transitions. [2023-11-23 14:15:21,603 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1145 transitions. Word has length 112 [2023-11-23 14:15:21,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:15:21,603 INFO L495 AbstractCegarLoop]: Abstraction has 732 states and 1145 transitions. [2023-11-23 14:15:21,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 14:15:21,603 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1145 transitions. [2023-11-23 14:15:21,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-23 14:15:21,605 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:15:21,605 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:15:21,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 14:15:21,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 14:15:21,817 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:15:21,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:15:21,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1760156628, now seen corresponding path program 1 times [2023-11-23 14:15:21,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:15:21,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852188216] [2023-11-23 14:15:21,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:21,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:15:21,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:22,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:15:22,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:22,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:22,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:22,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 14:15:22,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:22,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 14:15:22,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:22,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:22,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 14:15:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:22,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-23 14:15:22,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:22,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:22,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:22,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:22,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-23 14:15:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:22,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-23 14:15:22,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:22,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:22,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-23 14:15:22,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:22,241 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-23 14:15:22,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:15:22,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852188216] [2023-11-23 14:15:22,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852188216] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 14:15:22,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729281253] [2023-11-23 14:15:22,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:22,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 14:15:22,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 14:15:22,242 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 14:15:22,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 14:15:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:22,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 1201 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-23 14:15:22,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 14:15:22,648 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 14:15:22,649 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 14:15:22,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729281253] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:15:22,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 14:15:22,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2023-11-23 14:15:22,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594592600] [2023-11-23 14:15:22,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:15:22,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 14:15:22,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:15:22,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 14:15:22,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2023-11-23 14:15:22,651 INFO L87 Difference]: Start difference. First operand 732 states and 1145 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-23 14:15:23,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:15:23,216 INFO L93 Difference]: Finished difference Result 2052 states and 3290 transitions. [2023-11-23 14:15:23,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 14:15:23,217 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 112 [2023-11-23 14:15:23,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:15:23,222 INFO L225 Difference]: With dead ends: 2052 [2023-11-23 14:15:23,223 INFO L226 Difference]: Without dead ends: 1391 [2023-11-23 14:15:23,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2023-11-23 14:15:23,226 INFO L413 NwaCegarLoop]: 793 mSDtfsCounter, 909 mSDsluCounter, 2333 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 3126 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 14:15:23,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 3126 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 14:15:23,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1391 states. [2023-11-23 14:15:23,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1391 to 1384. [2023-11-23 14:15:23,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1384 states, 1088 states have (on average 1.5799632352941178) internal successors, (1719), 1113 states have internal predecessors, (1719), 217 states have call successors, (217), 80 states have call predecessors, (217), 78 states have return successors, (265), 214 states have call predecessors, (265), 213 states have call successors, (265) [2023-11-23 14:15:23,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 2201 transitions. [2023-11-23 14:15:23,442 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 2201 transitions. Word has length 112 [2023-11-23 14:15:23,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:15:23,443 INFO L495 AbstractCegarLoop]: Abstraction has 1384 states and 2201 transitions. [2023-11-23 14:15:23,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-23 14:15:23,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 2201 transitions. [2023-11-23 14:15:23,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-23 14:15:23,444 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:15:23,444 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:15:23,457 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 14:15:23,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 14:15:23,657 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:15:23,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:15:23,658 INFO L85 PathProgramCache]: Analyzing trace with hash 793467263, now seen corresponding path program 1 times [2023-11-23 14:15:23,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:15:23,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803298644] [2023-11-23 14:15:23,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:23,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:15:23,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:23,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:15:23,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:23,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:23,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 14:15:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:23,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 14:15:23,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:23,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:23,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:23,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 14:15:23,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:23,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-23 14:15:24,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:24,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:24,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:24,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:24,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-23 14:15:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:24,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 14:15:24,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:24,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 14:15:24,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:24,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:24,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-23 14:15:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:24,020 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-23 14:15:24,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:15:24,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803298644] [2023-11-23 14:15:24,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803298644] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 14:15:24,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567269408] [2023-11-23 14:15:24,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:24,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 14:15:24,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 14:15:24,037 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 14:15:24,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 14:15:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:24,260 INFO L262 TraceCheckSpWp]: Trace formula consists of 1196 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 14:15:24,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 14:15:24,381 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 14:15:24,381 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 14:15:24,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567269408] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:15:24,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 14:15:24,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-11-23 14:15:24,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114963341] [2023-11-23 14:15:24,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:15:24,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 14:15:24,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:15:24,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 14:15:24,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2023-11-23 14:15:24,383 INFO L87 Difference]: Start difference. First operand 1384 states and 2201 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-23 14:15:24,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:15:24,875 INFO L93 Difference]: Finished difference Result 2715 states and 4377 transitions. [2023-11-23 14:15:24,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 14:15:24,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 113 [2023-11-23 14:15:24,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:15:24,882 INFO L225 Difference]: With dead ends: 2715 [2023-11-23 14:15:24,882 INFO L226 Difference]: Without dead ends: 1402 [2023-11-23 14:15:24,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2023-11-23 14:15:24,887 INFO L413 NwaCegarLoop]: 834 mSDtfsCounter, 732 mSDsluCounter, 2196 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 3030 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 14:15:24,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 3030 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 14:15:24,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2023-11-23 14:15:25,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 1394. [2023-11-23 14:15:25,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1094 states have (on average 1.576782449725777) internal successors, (1725), 1122 states have internal predecessors, (1725), 219 states have call successors, (219), 81 states have call predecessors, (219), 80 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2023-11-23 14:15:25,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 2219 transitions. [2023-11-23 14:15:25,065 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 2219 transitions. Word has length 113 [2023-11-23 14:15:25,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:15:25,066 INFO L495 AbstractCegarLoop]: Abstraction has 1394 states and 2219 transitions. [2023-11-23 14:15:25,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-23 14:15:25,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 2219 transitions. [2023-11-23 14:15:25,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-23 14:15:25,067 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:15:25,068 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:15:25,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 14:15:25,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 14:15:25,281 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:15:25,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:15:25,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1094831477, now seen corresponding path program 1 times [2023-11-23 14:15:25,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:15:25,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611453058] [2023-11-23 14:15:25,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:25,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:15:25,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:25,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:15:25,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:25,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:25,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:25,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 14:15:25,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:25,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 14:15:25,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:25,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:25,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:25,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 14:15:25,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:25,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-23 14:15:25,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:25,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:25,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:25,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:25,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:25,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-23 14:15:25,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:25,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 14:15:25,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:25,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:15:25,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:25,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-23 14:15:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:25,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:25,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:25,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-23 14:15:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:25,627 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-23 14:15:25,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:15:25,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611453058] [2023-11-23 14:15:25,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611453058] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 14:15:25,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042117495] [2023-11-23 14:15:25,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:25,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 14:15:25,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 14:15:25,629 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 14:15:25,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 14:15:25,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:25,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 1212 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 14:15:25,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 14:15:25,868 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 14:15:25,868 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 14:15:25,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042117495] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:15:25,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 14:15:25,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2023-11-23 14:15:25,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049749705] [2023-11-23 14:15:25,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:15:25,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 14:15:25,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:15:25,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 14:15:25,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-11-23 14:15:25,870 INFO L87 Difference]: Start difference. First operand 1394 states and 2219 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 14:15:26,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:15:26,141 INFO L93 Difference]: Finished difference Result 3368 states and 5447 transitions. [2023-11-23 14:15:26,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 14:15:26,141 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2023-11-23 14:15:26,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:15:26,148 INFO L225 Difference]: With dead ends: 3368 [2023-11-23 14:15:26,148 INFO L226 Difference]: Without dead ends: 2047 [2023-11-23 14:15:26,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-11-23 14:15:26,152 INFO L413 NwaCegarLoop]: 1450 mSDtfsCounter, 738 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 SdHoareTripleChecker+Valid, 2225 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 14:15:26,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [738 Valid, 2225 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 14:15:26,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2047 states. [2023-11-23 14:15:26,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2047 to 1394. [2023-11-23 14:15:26,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1094 states have (on average 1.5758683729433272) internal successors, (1724), 1122 states have internal predecessors, (1724), 219 states have call successors, (219), 81 states have call predecessors, (219), 80 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2023-11-23 14:15:26,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 2218 transitions. [2023-11-23 14:15:26,315 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 2218 transitions. Word has length 117 [2023-11-23 14:15:26,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:15:26,316 INFO L495 AbstractCegarLoop]: Abstraction has 1394 states and 2218 transitions. [2023-11-23 14:15:26,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 14:15:26,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 2218 transitions. [2023-11-23 14:15:26,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-23 14:15:26,318 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:15:26,319 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:15:26,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 14:15:26,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-23 14:15:26,537 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:15:26,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:15:26,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1276907785, now seen corresponding path program 1 times [2023-11-23 14:15:26,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:15:26,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644271254] [2023-11-23 14:15:26,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:26,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:15:26,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:26,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:15:26,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:26,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:26,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 14:15:26,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:26,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 14:15:26,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:26,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:26,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:26,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 14:15:26,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:26,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-23 14:15:26,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:26,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:26,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:26,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:26,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-23 14:15:26,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:26,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 14:15:26,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:26,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:15:26,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:26,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-23 14:15:26,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:26,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:26,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:26,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-23 14:15:26,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:26,884 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-23 14:15:26,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:15:26,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644271254] [2023-11-23 14:15:26,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644271254] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 14:15:26,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697588265] [2023-11-23 14:15:26,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:26,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 14:15:26,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 14:15:26,886 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 14:15:26,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 14:15:27,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:27,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 1211 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 14:15:27,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 14:15:27,196 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 14:15:27,196 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 14:15:27,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697588265] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:15:27,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 14:15:27,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-11-23 14:15:27,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921834883] [2023-11-23 14:15:27,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:15:27,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 14:15:27,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:15:27,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 14:15:27,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-11-23 14:15:27,198 INFO L87 Difference]: Start difference. First operand 1394 states and 2218 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 14:15:27,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:15:27,487 INFO L93 Difference]: Finished difference Result 2717 states and 4346 transitions. [2023-11-23 14:15:27,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 14:15:27,488 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2023-11-23 14:15:27,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:15:27,494 INFO L225 Difference]: With dead ends: 2717 [2023-11-23 14:15:27,494 INFO L226 Difference]: Without dead ends: 1398 [2023-11-23 14:15:27,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-11-23 14:15:27,499 INFO L413 NwaCegarLoop]: 862 mSDtfsCounter, 339 mSDsluCounter, 1430 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 2292 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 14:15:27,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 2292 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 14:15:27,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1398 states. [2023-11-23 14:15:27,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1398 to 1394. [2023-11-23 14:15:27,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1094 states have (on average 1.5722120658135283) internal successors, (1720), 1122 states have internal predecessors, (1720), 219 states have call successors, (219), 81 states have call predecessors, (219), 80 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2023-11-23 14:15:27,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 2214 transitions. [2023-11-23 14:15:27,724 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 2214 transitions. Word has length 117 [2023-11-23 14:15:27,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:15:27,725 INFO L495 AbstractCegarLoop]: Abstraction has 1394 states and 2214 transitions. [2023-11-23 14:15:27,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 14:15:27,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 2214 transitions. [2023-11-23 14:15:27,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-23 14:15:27,728 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:15:27,728 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:15:27,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-23 14:15:27,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-23 14:15:27,944 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:15:27,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:15:27,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1222602109, now seen corresponding path program 1 times [2023-11-23 14:15:27,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:15:27,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845500586] [2023-11-23 14:15:27,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:27,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:15:27,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:28,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:15:28,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:28,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:28,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:28,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 14:15:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:28,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 14:15:28,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:28,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:28,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:28,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 14:15:28,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:28,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 14:15:28,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:28,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 14:15:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:28,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-23 14:15:28,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:28,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-23 14:15:28,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:28,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-23 14:15:28,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:28,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-23 14:15:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:28,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-23 14:15:28,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:28,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 14:15:28,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:28,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:28,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-23 14:15:28,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:28,372 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-11-23 14:15:28,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:15:28,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845500586] [2023-11-23 14:15:28,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845500586] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 14:15:28,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875007731] [2023-11-23 14:15:28,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:28,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 14:15:28,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 14:15:28,374 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 14:15:28,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 14:15:28,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:28,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 1306 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 14:15:28,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 14:15:28,703 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-23 14:15:28,703 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 14:15:28,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875007731] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:15:28,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 14:15:28,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-11-23 14:15:28,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063268947] [2023-11-23 14:15:28,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:15:28,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 14:15:28,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:15:28,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 14:15:28,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-11-23 14:15:28,705 INFO L87 Difference]: Start difference. First operand 1394 states and 2214 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-23 14:15:29,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:15:29,057 INFO L93 Difference]: Finished difference Result 2794 states and 4502 transitions. [2023-11-23 14:15:29,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 14:15:29,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 143 [2023-11-23 14:15:29,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:15:29,063 INFO L225 Difference]: With dead ends: 2794 [2023-11-23 14:15:29,063 INFO L226 Difference]: Without dead ends: 1472 [2023-11-23 14:15:29,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-11-23 14:15:29,067 INFO L413 NwaCegarLoop]: 715 mSDtfsCounter, 213 mSDsluCounter, 1406 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2121 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 14:15:29,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 2121 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 14:15:29,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2023-11-23 14:15:29,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1472. [2023-11-23 14:15:29,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1170 states have (on average 1.594871794871795) internal successors, (1866), 1198 states have internal predecessors, (1866), 219 states have call successors, (219), 83 states have call predecessors, (219), 82 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2023-11-23 14:15:29,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 2360 transitions. [2023-11-23 14:15:29,222 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 2360 transitions. Word has length 143 [2023-11-23 14:15:29,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:15:29,222 INFO L495 AbstractCegarLoop]: Abstraction has 1472 states and 2360 transitions. [2023-11-23 14:15:29,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-23 14:15:29,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 2360 transitions. [2023-11-23 14:15:29,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-23 14:15:29,224 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:15:29,225 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:15:29,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-23 14:15:29,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-23 14:15:29,437 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:15:29,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:15:29,438 INFO L85 PathProgramCache]: Analyzing trace with hash 2112187394, now seen corresponding path program 1 times [2023-11-23 14:15:29,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:15:29,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662167909] [2023-11-23 14:15:29,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:29,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:15:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:29,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:15:29,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:29,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:29,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:29,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 14:15:29,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:29,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 14:15:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:29,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:29,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:29,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 14:15:29,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:29,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 14:15:29,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:29,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 14:15:29,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:29,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 14:15:29,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:29,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-23 14:15:29,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:29,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-23 14:15:29,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:29,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-23 14:15:29,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:29,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-23 14:15:29,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:29,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-23 14:15:29,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:29,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:29,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:29,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-23 14:15:29,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:29,758 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-11-23 14:15:29,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:15:29,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662167909] [2023-11-23 14:15:29,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662167909] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 14:15:29,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574205732] [2023-11-23 14:15:29,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:29,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 14:15:29,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 14:15:29,759 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 14:15:29,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-23 14:15:29,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:29,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 1311 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 14:15:29,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 14:15:30,012 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-23 14:15:30,012 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 14:15:30,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574205732] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:15:30,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 14:15:30,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-11-23 14:15:30,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572670893] [2023-11-23 14:15:30,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:15:30,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 14:15:30,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:15:30,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 14:15:30,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-11-23 14:15:30,014 INFO L87 Difference]: Start difference. First operand 1472 states and 2360 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-23 14:15:30,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:15:30,308 INFO L93 Difference]: Finished difference Result 2950 states and 4792 transitions. [2023-11-23 14:15:30,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 14:15:30,309 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 148 [2023-11-23 14:15:30,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:15:30,314 INFO L225 Difference]: With dead ends: 2950 [2023-11-23 14:15:30,314 INFO L226 Difference]: Without dead ends: 1550 [2023-11-23 14:15:30,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-11-23 14:15:30,318 INFO L413 NwaCegarLoop]: 715 mSDtfsCounter, 211 mSDsluCounter, 1406 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2121 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 14:15:30,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 2121 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 14:15:30,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1550 states. [2023-11-23 14:15:30,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1550 to 1550. [2023-11-23 14:15:30,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1550 states, 1246 states have (on average 1.6147672552166934) internal successors, (2012), 1274 states have internal predecessors, (2012), 219 states have call successors, (219), 85 states have call predecessors, (219), 84 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2023-11-23 14:15:30,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 2506 transitions. [2023-11-23 14:15:30,471 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 2506 transitions. Word has length 148 [2023-11-23 14:15:30,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:15:30,471 INFO L495 AbstractCegarLoop]: Abstraction has 1550 states and 2506 transitions. [2023-11-23 14:15:30,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-23 14:15:30,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 2506 transitions. [2023-11-23 14:15:30,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-23 14:15:30,474 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:15:30,474 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:15:30,487 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-23 14:15:30,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-23 14:15:30,681 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:15:30,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:15:30,682 INFO L85 PathProgramCache]: Analyzing trace with hash -113113998, now seen corresponding path program 1 times [2023-11-23 14:15:30,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:15:30,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781537603] [2023-11-23 14:15:30,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:30,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:15:30,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:30,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:15:30,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:30,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:30,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:30,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 14:15:30,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:31,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 14:15:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:31,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:31,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:31,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 14:15:31,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:31,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 14:15:31,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:31,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 14:15:31,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:31,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 14:15:31,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:31,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 14:15:31,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:31,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-23 14:15:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:31,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-23 14:15:31,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:31,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 14:15:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:31,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-23 14:15:31,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:31,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:31,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:31,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-23 14:15:31,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:31,070 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-11-23 14:15:31,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:15:31,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781537603] [2023-11-23 14:15:31,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781537603] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 14:15:31,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856103597] [2023-11-23 14:15:31,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:31,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 14:15:31,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 14:15:31,078 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 14:15:31,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 14:15:31,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:31,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 1315 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 14:15:31,334 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 14:15:31,366 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-23 14:15:31,366 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 14:15:31,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856103597] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:15:31,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 14:15:31,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-11-23 14:15:31,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954856486] [2023-11-23 14:15:31,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:15:31,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 14:15:31,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:15:31,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 14:15:31,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-11-23 14:15:31,368 INFO L87 Difference]: Start difference. First operand 1550 states and 2506 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-23 14:15:31,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:15:31,733 INFO L93 Difference]: Finished difference Result 3106 states and 5082 transitions. [2023-11-23 14:15:31,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 14:15:31,734 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 152 [2023-11-23 14:15:31,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:15:31,747 INFO L225 Difference]: With dead ends: 3106 [2023-11-23 14:15:31,748 INFO L226 Difference]: Without dead ends: 1628 [2023-11-23 14:15:31,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-11-23 14:15:31,753 INFO L413 NwaCegarLoop]: 715 mSDtfsCounter, 209 mSDsluCounter, 1406 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2121 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 14:15:31,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 2121 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 14:15:31,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1628 states. [2023-11-23 14:15:31,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 1628. [2023-11-23 14:15:31,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1628 states, 1322 states have (on average 1.632375189107413) internal successors, (2158), 1350 states have internal predecessors, (2158), 219 states have call successors, (219), 87 states have call predecessors, (219), 86 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2023-11-23 14:15:31,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 2652 transitions. [2023-11-23 14:15:31,938 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 2652 transitions. Word has length 152 [2023-11-23 14:15:31,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:15:31,938 INFO L495 AbstractCegarLoop]: Abstraction has 1628 states and 2652 transitions. [2023-11-23 14:15:31,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-23 14:15:31,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 2652 transitions. [2023-11-23 14:15:31,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-23 14:15:31,941 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:15:31,941 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:15:31,956 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-23 14:15:32,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-23 14:15:32,156 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:15:32,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:15:32,157 INFO L85 PathProgramCache]: Analyzing trace with hash -89549411, now seen corresponding path program 1 times [2023-11-23 14:15:32,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:15:32,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793405615] [2023-11-23 14:15:32,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:32,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:15:32,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:32,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:15:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:32,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:32,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:32,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 14:15:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:32,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 14:15:32,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:32,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:32,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:32,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 14:15:32,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:32,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 14:15:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:32,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 14:15:32,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:32,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 14:15:32,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:32,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 14:15:32,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:32,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-23 14:15:32,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:32,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-23 14:15:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:32,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-23 14:15:32,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:32,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 14:15:32,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:32,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:32,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:32,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-11-23 14:15:32,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:32,477 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-11-23 14:15:32,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:15:32,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793405615] [2023-11-23 14:15:32,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793405615] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 14:15:32,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324595852] [2023-11-23 14:15:32,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:32,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 14:15:32,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 14:15:32,493 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 14:15:32,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-23 14:15:32,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:32,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 14:15:32,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 14:15:32,740 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-23 14:15:32,740 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 14:15:32,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324595852] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:15:32,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 14:15:32,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-11-23 14:15:32,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409387431] [2023-11-23 14:15:32,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:15:32,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 14:15:32,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:15:32,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 14:15:32,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-11-23 14:15:32,742 INFO L87 Difference]: Start difference. First operand 1628 states and 2652 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-23 14:15:33,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:15:33,047 INFO L93 Difference]: Finished difference Result 3262 states and 5372 transitions. [2023-11-23 14:15:33,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 14:15:33,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 155 [2023-11-23 14:15:33,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:15:33,053 INFO L225 Difference]: With dead ends: 3262 [2023-11-23 14:15:33,053 INFO L226 Difference]: Without dead ends: 1706 [2023-11-23 14:15:33,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-11-23 14:15:33,057 INFO L413 NwaCegarLoop]: 715 mSDtfsCounter, 207 mSDsluCounter, 1406 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2121 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 14:15:33,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 2121 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 14:15:33,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2023-11-23 14:15:33,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1706. [2023-11-23 14:15:33,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1706 states, 1398 states have (on average 1.648068669527897) internal successors, (2304), 1426 states have internal predecessors, (2304), 219 states have call successors, (219), 89 states have call predecessors, (219), 88 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2023-11-23 14:15:33,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 2798 transitions. [2023-11-23 14:15:33,214 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 2798 transitions. Word has length 155 [2023-11-23 14:15:33,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:15:33,214 INFO L495 AbstractCegarLoop]: Abstraction has 1706 states and 2798 transitions. [2023-11-23 14:15:33,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-23 14:15:33,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 2798 transitions. [2023-11-23 14:15:33,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-23 14:15:33,217 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:15:33,217 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:15:33,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-23 14:15:33,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-23 14:15:33,430 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:15:33,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:15:33,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1089749205, now seen corresponding path program 1 times [2023-11-23 14:15:33,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:15:33,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583267022] [2023-11-23 14:15:33,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:33,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:15:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:33,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:15:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:33,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:33,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:33,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 14:15:33,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:33,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 14:15:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:33,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:33,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:33,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 14:15:33,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:33,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 14:15:33,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:33,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 14:15:33,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:33,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 14:15:33,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:33,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 14:15:33,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:33,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-23 14:15:33,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:33,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-23 14:15:33,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:33,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-23 14:15:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:33,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-23 14:15:33,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:33,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:33,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:33,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-23 14:15:33,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:33,767 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-11-23 14:15:33,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:15:33,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583267022] [2023-11-23 14:15:33,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583267022] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 14:15:33,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527741864] [2023-11-23 14:15:33,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:33,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 14:15:33,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 14:15:33,769 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 14:15:33,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-23 14:15:33,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:33,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 1314 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-23 14:15:34,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 14:15:34,170 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-11-23 14:15:34,170 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 14:15:34,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527741864] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:15:34,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 14:15:34,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12] total 17 [2023-11-23 14:15:34,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194264304] [2023-11-23 14:15:34,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:15:34,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 14:15:34,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:15:34,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 14:15:34,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2023-11-23 14:15:34,174 INFO L87 Difference]: Start difference. First operand 1706 states and 2798 transitions. Second operand has 9 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-23 14:15:36,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:15:36,318 INFO L93 Difference]: Finished difference Result 5260 states and 8790 transitions. [2023-11-23 14:15:36,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 14:15:36,319 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) Word has length 157 [2023-11-23 14:15:36,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:15:36,363 INFO L225 Difference]: With dead ends: 5260 [2023-11-23 14:15:36,363 INFO L226 Difference]: Without dead ends: 3286 [2023-11-23 14:15:36,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=542, Unknown=0, NotChecked=0, Total=650 [2023-11-23 14:15:36,370 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 1812 mSDsluCounter, 1849 mSDsCounter, 0 mSdLazyCounter, 3609 mSolverCounterSat, 441 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1909 SdHoareTripleChecker+Valid, 2204 SdHoareTripleChecker+Invalid, 4050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 441 IncrementalHoareTripleChecker+Valid, 3609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-23 14:15:36,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1909 Valid, 2204 Invalid, 4050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [441 Valid, 3609 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-23 14:15:36,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3286 states. [2023-11-23 14:15:36,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3286 to 3214. [2023-11-23 14:15:36,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3214 states, 2579 states have (on average 1.661108956960062) internal successors, (4284), 2661 states have internal predecessors, (4284), 455 states have call successors, (455), 159 states have call predecessors, (455), 179 states have return successors, (599), 451 states have call predecessors, (599), 451 states have call successors, (599) [2023-11-23 14:15:36,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3214 states to 3214 states and 5338 transitions. [2023-11-23 14:15:36,812 INFO L78 Accepts]: Start accepts. Automaton has 3214 states and 5338 transitions. Word has length 157 [2023-11-23 14:15:36,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:15:36,813 INFO L495 AbstractCegarLoop]: Abstraction has 3214 states and 5338 transitions. [2023-11-23 14:15:36,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-23 14:15:36,813 INFO L276 IsEmpty]: Start isEmpty. Operand 3214 states and 5338 transitions. [2023-11-23 14:15:36,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-23 14:15:36,818 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:15:36,818 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:15:36,848 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-23 14:15:37,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 14:15:37,031 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:15:37,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:15:37,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1102474043, now seen corresponding path program 1 times [2023-11-23 14:15:37,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:15:37,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053416719] [2023-11-23 14:15:37,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:37,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:15:37,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:37,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:15:37,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:37,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:37,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:37,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 14:15:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:37,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 14:15:37,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:37,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:37,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:37,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 14:15:37,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:37,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 14:15:37,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:37,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 14:15:37,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:37,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 14:15:37,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:37,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 14:15:37,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:37,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-23 14:15:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:37,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-23 14:15:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:37,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-23 14:15:37,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:37,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-23 14:15:37,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:37,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:37,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:37,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-23 14:15:37,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:37,270 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2023-11-23 14:15:37,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:15:37,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053416719] [2023-11-23 14:15:37,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053416719] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:15:37,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:15:37,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 14:15:37,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151130958] [2023-11-23 14:15:37,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:15:37,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 14:15:37,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:15:37,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 14:15:37,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-23 14:15:37,272 INFO L87 Difference]: Start difference. First operand 3214 states and 5338 transitions. Second operand has 9 states, 8 states have (on average 11.5) internal successors, (92), 6 states have internal predecessors, (92), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-23 14:15:40,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:15:40,721 INFO L93 Difference]: Finished difference Result 7271 states and 12253 transitions. [2023-11-23 14:15:40,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 14:15:40,721 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.5) internal successors, (92), 6 states have internal predecessors, (92), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 157 [2023-11-23 14:15:40,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:15:40,739 INFO L225 Difference]: With dead ends: 7271 [2023-11-23 14:15:40,739 INFO L226 Difference]: Without dead ends: 4065 [2023-11-23 14:15:40,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2023-11-23 14:15:40,760 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 1311 mSDsluCounter, 2161 mSDsCounter, 0 mSdLazyCounter, 3222 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1415 SdHoareTripleChecker+Valid, 2582 SdHoareTripleChecker+Invalid, 3544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 3222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-23 14:15:40,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1415 Valid, 2582 Invalid, 3544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 3222 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-23 14:15:40,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4065 states. [2023-11-23 14:15:41,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4065 to 3228. [2023-11-23 14:15:41,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3228 states, 2593 states have (on average 1.6486694947936753) internal successors, (4275), 2675 states have internal predecessors, (4275), 455 states have call successors, (455), 159 states have call predecessors, (455), 179 states have return successors, (599), 451 states have call predecessors, (599), 451 states have call successors, (599) [2023-11-23 14:15:41,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3228 states to 3228 states and 5329 transitions. [2023-11-23 14:15:41,176 INFO L78 Accepts]: Start accepts. Automaton has 3228 states and 5329 transitions. Word has length 157 [2023-11-23 14:15:41,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:15:41,176 INFO L495 AbstractCegarLoop]: Abstraction has 3228 states and 5329 transitions. [2023-11-23 14:15:41,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.5) internal successors, (92), 6 states have internal predecessors, (92), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-23 14:15:41,176 INFO L276 IsEmpty]: Start isEmpty. Operand 3228 states and 5329 transitions. [2023-11-23 14:15:41,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-23 14:15:41,182 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:15:41,182 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:15:41,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-23 14:15:41,182 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:15:41,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:15:41,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1175142449, now seen corresponding path program 1 times [2023-11-23 14:15:41,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:15:41,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80530008] [2023-11-23 14:15:41,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:41,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:15:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:41,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:15:41,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:41,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:41,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:41,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 14:15:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:41,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-23 14:15:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:41,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:41,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:41,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 14:15:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:41,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-23 14:15:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:41,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-23 14:15:41,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:41,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 14:15:41,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:41,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 14:15:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:41,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-23 14:15:41,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:41,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-23 14:15:41,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:41,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-23 14:15:41,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:41,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-23 14:15:41,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:41,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:41,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:41,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-23 14:15:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:41,459 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2023-11-23 14:15:41,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:15:41,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80530008] [2023-11-23 14:15:41,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80530008] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:15:41,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:15:41,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 14:15:41,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395603146] [2023-11-23 14:15:41,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:15:41,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 14:15:41,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:15:41,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 14:15:41,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-23 14:15:41,463 INFO L87 Difference]: Start difference. First operand 3228 states and 5329 transitions. Second operand has 9 states, 8 states have (on average 12.25) internal successors, (98), 6 states have internal predecessors, (98), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-23 14:15:45,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:15:45,062 INFO L93 Difference]: Finished difference Result 6955 states and 11781 transitions. [2023-11-23 14:15:45,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 14:15:45,062 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.25) internal successors, (98), 6 states have internal predecessors, (98), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 163 [2023-11-23 14:15:45,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:15:45,076 INFO L225 Difference]: With dead ends: 6955 [2023-11-23 14:15:45,076 INFO L226 Difference]: Without dead ends: 3610 [2023-11-23 14:15:45,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2023-11-23 14:15:45,087 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 793 mSDsluCounter, 2228 mSDsCounter, 0 mSdLazyCounter, 3238 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 2655 SdHoareTripleChecker+Invalid, 3371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 3238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-23 14:15:45,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 2655 Invalid, 3371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 3238 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-23 14:15:45,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3610 states. [2023-11-23 14:15:45,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3610 to 2848. [2023-11-23 14:15:45,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2848 states, 2313 states have (on average 1.6956333765672287) internal successors, (3922), 2382 states have internal predecessors, (3922), 375 states have call successors, (375), 147 states have call predecessors, (375), 159 states have return successors, (469), 366 states have call predecessors, (469), 371 states have call successors, (469) [2023-11-23 14:15:45,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 4766 transitions. [2023-11-23 14:15:45,479 INFO L78 Accepts]: Start accepts. Automaton has 2848 states and 4766 transitions. Word has length 163 [2023-11-23 14:15:45,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:15:45,479 INFO L495 AbstractCegarLoop]: Abstraction has 2848 states and 4766 transitions. [2023-11-23 14:15:45,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.25) internal successors, (98), 6 states have internal predecessors, (98), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-23 14:15:45,480 INFO L276 IsEmpty]: Start isEmpty. Operand 2848 states and 4766 transitions. [2023-11-23 14:15:45,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2023-11-23 14:15:45,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:15:45,491 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:15:45,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-23 14:15:45,492 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:15:45,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:15:45,492 INFO L85 PathProgramCache]: Analyzing trace with hash 580543996, now seen corresponding path program 1 times [2023-11-23 14:15:45,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:15:45,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852723410] [2023-11-23 14:15:45,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:45,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:15:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:45,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:15:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:45,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:45,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:45,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 14:15:45,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-23 14:15:46,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:46,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:46,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-23 14:15:46,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 14:15:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-23 14:15:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 14:15:46,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:15:46,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 14:15:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:46,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-23 14:15:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:46,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:46,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-23 14:15:46,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 14:15:46,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:46,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:46,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-23 14:15:46,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 14:15:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:15:46,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 14:15:46,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:46,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-23 14:15:46,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:46,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:46,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-23 14:15:46,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:46,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 14:15:46,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:46,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:46,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-23 14:15:46,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 14:15:46,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:15:46,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-23 14:15:46,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2023-11-23 14:15:46,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 14:15:46,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-11-23 14:15:46,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:46,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-11-23 14:15:46,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-11-23 14:15:46,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2023-11-23 14:15:46,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2023-11-23 14:15:46,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2023-11-23 14:15:46,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2023-11-23 14:15:46,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2023-11-23 14:15:46,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2023-11-23 14:15:46,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2023-11-23 14:15:46,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:15:46,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2023-11-23 14:15:46,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,369 INFO L134 CoverageAnalysis]: Checked inductivity of 977 backedges. 40 proven. 112 refuted. 0 times theorem prover too weak. 825 trivial. 0 not checked. [2023-11-23 14:15:46,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:15:46,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852723410] [2023-11-23 14:15:46,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852723410] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 14:15:46,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017312321] [2023-11-23 14:15:46,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:15:46,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 14:15:46,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 14:15:46,370 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 14:15:46,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-23 14:15:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:15:46,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 3125 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-23 14:15:46,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 14:15:47,076 INFO L134 CoverageAnalysis]: Checked inductivity of 977 backedges. 313 proven. 48 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2023-11-23 14:15:47,077 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 14:15:47,725 INFO L134 CoverageAnalysis]: Checked inductivity of 977 backedges. 57 proven. 90 refuted. 0 times theorem prover too weak. 830 trivial. 0 not checked. [2023-11-23 14:15:47,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017312321] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 14:15:47,726 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 14:15:47,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 11, 14] total 34 [2023-11-23 14:15:47,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384069366] [2023-11-23 14:15:47,726 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 14:15:47,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-23 14:15:47,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:15:47,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-23 14:15:47,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=997, Unknown=0, NotChecked=0, Total=1122 [2023-11-23 14:15:47,729 INFO L87 Difference]: Start difference. First operand 2848 states and 4766 transitions. Second operand has 34 states, 31 states have (on average 11.0) internal successors, (341), 25 states have internal predecessors, (341), 17 states have call successors, (91), 11 states have call predecessors, (91), 14 states have return successors, (90), 22 states have call predecessors, (90), 17 states have call successors, (90) [2023-11-23 14:17:49,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:17:49,381 INFO L93 Difference]: Finished difference Result 29717 states and 55948 transitions. [2023-11-23 14:17:49,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 488 states. [2023-11-23 14:17:49,382 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 31 states have (on average 11.0) internal successors, (341), 25 states have internal predecessors, (341), 17 states have call successors, (91), 11 states have call predecessors, (91), 14 states have return successors, (90), 22 states have call predecessors, (90), 17 states have call successors, (90) Word has length 430 [2023-11-23 14:17:49,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:17:49,533 INFO L225 Difference]: With dead ends: 29717 [2023-11-23 14:17:49,534 INFO L226 Difference]: Without dead ends: 26830 [2023-11-23 14:17:49,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1686 GetRequests, 1166 SyntacticMatches, 4 SemanticMatches, 516 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123339 ImplicationChecksByTransitivity, 52.5s TimeCoverageRelationStatistics Valid=22128, Invalid=245678, Unknown=0, NotChecked=0, Total=267806 [2023-11-23 14:17:49,601 INFO L413 NwaCegarLoop]: 2824 mSDtfsCounter, 32703 mSDsluCounter, 34611 mSDsCounter, 0 mSdLazyCounter, 117097 mSolverCounterSat, 15232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32703 SdHoareTripleChecker+Valid, 37435 SdHoareTripleChecker+Invalid, 132329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.8s SdHoareTripleChecker+Time, 15232 IncrementalHoareTripleChecker+Valid, 117097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.3s IncrementalHoareTripleChecker+Time [2023-11-23 14:17:49,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32703 Valid, 37435 Invalid, 132329 Unknown, 0 Unchecked, 0.8s Time], IncrementalHoareTripleChecker [15232 Valid, 117097 Invalid, 0 Unknown, 0 Unchecked, 59.3s Time] [2023-11-23 14:17:49,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26830 states. [2023-11-23 14:17:52,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26830 to 14880. [2023-11-23 14:17:52,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14880 states, 12060 states have (on average 1.6643449419568823) internal successors, (20072), 12418 states have internal predecessors, (20072), 1862 states have call successors, (1862), 822 states have call predecessors, (1862), 957 states have return successors, (2635), 1903 states have call predecessors, (2635), 1844 states have call successors, (2635) [2023-11-23 14:17:52,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14880 states to 14880 states and 24569 transitions. [2023-11-23 14:17:52,317 INFO L78 Accepts]: Start accepts. Automaton has 14880 states and 24569 transitions. Word has length 430 [2023-11-23 14:17:52,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:17:52,318 INFO L495 AbstractCegarLoop]: Abstraction has 14880 states and 24569 transitions. [2023-11-23 14:17:52,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 31 states have (on average 11.0) internal successors, (341), 25 states have internal predecessors, (341), 17 states have call successors, (91), 11 states have call predecessors, (91), 14 states have return successors, (90), 22 states have call predecessors, (90), 17 states have call successors, (90) [2023-11-23 14:17:52,318 INFO L276 IsEmpty]: Start isEmpty. Operand 14880 states and 24569 transitions. [2023-11-23 14:17:52,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2023-11-23 14:17:52,374 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:17:52,374 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 11, 10, 10, 10, 10, 10, 10, 10, 9, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:17:52,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-23 14:17:52,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 14:17:52,590 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:17:52,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:17:52,590 INFO L85 PathProgramCache]: Analyzing trace with hash -497500431, now seen corresponding path program 1 times [2023-11-23 14:17:52,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:17:52,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908015346] [2023-11-23 14:17:52,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:17:52,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:17:52,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:52,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:17:52,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:52,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:17:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:52,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 14:17:52,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-23 14:17:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:17:53,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:17:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-23 14:17:53,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:17:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 14:17:53,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:17:53,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:17:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-23 14:17:53,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 14:17:53,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:17:53,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-23 14:17:53,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:17:53,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-23 14:17:53,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:17:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:17:53,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-23 14:17:53,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:17:53,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 14:17:53,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:17:53,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:17:53,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 14:17:53,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 14:17:53,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:17:53,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-11-23 14:17:53,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:17:53,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:17:53,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-23 14:17:53,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:17:53,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-23 14:17:53,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-23 14:17:53,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 14:17:53,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-23 14:17:53,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 14:17:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-23 14:17:53,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-23 14:17:53,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 14:17:53,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:17:53,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2023-11-23 14:17:53,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:17:53,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 14:17:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2023-11-23 14:17:53,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:17:53,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2023-11-23 14:17:53,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2023-11-23 14:17:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2023-11-23 14:17:53,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2023-11-23 14:17:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2023-11-23 14:17:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2023-11-23 14:17:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2023-11-23 14:17:53,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2023-11-23 14:17:53,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2023-11-23 14:17:53,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:17:53,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 473 [2023-11-23 14:17:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,399 INFO L134 CoverageAnalysis]: Checked inductivity of 1183 backedges. 55 proven. 34 refuted. 0 times theorem prover too weak. 1094 trivial. 0 not checked. [2023-11-23 14:17:53,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:17:53,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908015346] [2023-11-23 14:17:53,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908015346] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 14:17:53,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552651138] [2023-11-23 14:17:53,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:17:53,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 14:17:53,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 14:17:53,416 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 14:17:53,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-23 14:17:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:17:53,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 3261 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 14:17:53,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 14:17:53,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1183 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 976 trivial. 0 not checked. [2023-11-23 14:17:53,920 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 14:17:53,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552651138] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:17:53,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 14:17:53,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17 [2023-11-23 14:17:53,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593945014] [2023-11-23 14:17:53,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:17:53,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 14:17:53,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:17:53,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 14:17:53,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2023-11-23 14:17:53,922 INFO L87 Difference]: Start difference. First operand 14880 states and 24569 transitions. Second operand has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 5 states have internal predecessors, (169), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-23 14:17:57,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:17:57,226 INFO L93 Difference]: Finished difference Result 32010 states and 53282 transitions. [2023-11-23 14:17:57,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 14:17:57,226 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 5 states have internal predecessors, (169), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 480 [2023-11-23 14:17:57,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:17:57,276 INFO L225 Difference]: With dead ends: 32010 [2023-11-23 14:17:57,276 INFO L226 Difference]: Without dead ends: 17196 [2023-11-23 14:17:57,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 603 GetRequests, 587 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2023-11-23 14:17:57,310 INFO L413 NwaCegarLoop]: 781 mSDtfsCounter, 159 mSDsluCounter, 3068 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 3849 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 14:17:57,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 3849 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 14:17:57,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17196 states. [2023-11-23 14:17:59,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17196 to 15022. [2023-11-23 14:17:59,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15022 states, 12164 states have (on average 1.6586649128576125) internal successors, (20176), 12538 states have internal predecessors, (20176), 1862 states have call successors, (1862), 822 states have call predecessors, (1862), 995 states have return successors, (2713), 1925 states have call predecessors, (2713), 1844 states have call successors, (2713) [2023-11-23 14:17:59,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15022 states to 15022 states and 24751 transitions. [2023-11-23 14:17:59,617 INFO L78 Accepts]: Start accepts. Automaton has 15022 states and 24751 transitions. Word has length 480 [2023-11-23 14:17:59,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:17:59,618 INFO L495 AbstractCegarLoop]: Abstraction has 15022 states and 24751 transitions. [2023-11-23 14:17:59,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 5 states have internal predecessors, (169), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-23 14:17:59,618 INFO L276 IsEmpty]: Start isEmpty. Operand 15022 states and 24751 transitions. [2023-11-23 14:17:59,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2023-11-23 14:17:59,653 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:17:59,653 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:17:59,669 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-23 14:17:59,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-11-23 14:17:59,869 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:17:59,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:17:59,869 INFO L85 PathProgramCache]: Analyzing trace with hash -91838142, now seen corresponding path program 1 times [2023-11-23 14:17:59,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:17:59,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732319983] [2023-11-23 14:17:59,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:17:59,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:17:59,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:18:00,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:18:00,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 14:18:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-23 14:18:00,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:18:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:18:00,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-23 14:18:00,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:18:00,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 14:18:00,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 14:18:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 14:18:00,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 14:18:00,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-23 14:18:00,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 14:18:00,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-23 14:18:00,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-23 14:18:00,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:18:00,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-23 14:18:00,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:18:00,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:18:00,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-23 14:18:00,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:18:00,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 14:18:00,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:18:00,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:18:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-23 14:18:00,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 14:18:00,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 14:18:00,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 14:18:00,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:18:00,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-23 14:18:00,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:18:00,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:18:00,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-23 14:18:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:18:00,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 14:18:00,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:18:00,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:18:00,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-23 14:18:00,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 14:18:00,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 14:18:00,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:18:00,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2023-11-23 14:18:00,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:18:00,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 14:18:00,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2023-11-23 14:18:00,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:18:00,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2023-11-23 14:18:00,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2023-11-23 14:18:00,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2023-11-23 14:18:00,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2023-11-23 14:18:00,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2023-11-23 14:18:00,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2023-11-23 14:18:00,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2023-11-23 14:18:00,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2023-11-23 14:18:00,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2023-11-23 14:18:00,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 14:18:00,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2023-11-23 14:18:00,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:00,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1184 backedges. 61 proven. 102 refuted. 0 times theorem prover too weak. 1021 trivial. 0 not checked. [2023-11-23 14:18:00,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:18:00,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732319983] [2023-11-23 14:18:00,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732319983] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 14:18:00,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993790359] [2023-11-23 14:18:00,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:18:00,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 14:18:00,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 14:18:00,828 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 14:18:00,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-23 14:18:01,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:18:01,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 3290 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 14:18:01,282 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 14:18:01,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1184 backedges. 534 proven. 34 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2023-11-23 14:18:01,525 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 14:18:02,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1184 backedges. 100 proven. 50 refuted. 0 times theorem prover too weak. 1034 trivial. 0 not checked. [2023-11-23 14:18:02,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993790359] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 14:18:02,146 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 14:18:02,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 11] total 28 [2023-11-23 14:18:02,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406321293] [2023-11-23 14:18:02,146 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 14:18:02,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-23 14:18:02,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:18:02,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-23 14:18:02,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=655, Unknown=0, NotChecked=0, Total=756 [2023-11-23 14:18:02,149 INFO L87 Difference]: Start difference. First operand 15022 states and 24751 transitions. Second operand has 28 states, 27 states have (on average 14.518518518518519) internal successors, (392), 23 states have internal predecessors, (392), 13 states have call successors, (100), 10 states have call predecessors, (100), 16 states have return successors, (99), 16 states have call predecessors, (99), 13 states have call successors, (99) Killed by 15