./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec14_product19.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec14_product19.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd --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 5643166a994eeb2bd259cf18f0a4b43a93b8e6b433c116ad537f0a1a02a75ec3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:26:06,688 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:26:06,794 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 14:26:06,805 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:26:06,805 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:26:06,832 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:26:06,833 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:26:06,833 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:26:06,833 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:26:06,833 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:26:06,834 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:26:06,834 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:26:06,834 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:26:06,834 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:26:06,834 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:26:06,834 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:26:06,835 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:26:06,835 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:26:06,835 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:26:06,835 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:26:06,835 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:26:06,835 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:26:06,839 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:26:06,840 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:26:06,840 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:26:06,840 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:26:06,840 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:26:06,840 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:26:06,840 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:26:06,840 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:26:06,841 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:26:06,841 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:26:06,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:26:06,841 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:26:06,841 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:26:06,841 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:26:06,841 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:26:06,842 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:26:06,842 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:26:06,842 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:26:06,842 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:26:06,842 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:26:06,842 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd 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 -> 5643166a994eeb2bd259cf18f0a4b43a93b8e6b433c116ad537f0a1a02a75ec3 [2024-11-13 14:26:07,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:26:07,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:26:07,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:26:07,181 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:26:07,181 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:26:07,183 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/product-lines/elevator_spec14_product19.cil.c Unable to find full path for "g++" [2024-11-13 14:26:09,157 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:26:09,615 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:26:09,615 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/sv-benchmarks/c/product-lines/elevator_spec14_product19.cil.c [2024-11-13 14:26:09,643 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/data/0d612bc4a/3aa1e9f2d47a425aaf04acbaa120f9e1/FLAGd403538b5 [2024-11-13 14:26:09,669 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/data/0d612bc4a/3aa1e9f2d47a425aaf04acbaa120f9e1 [2024-11-13 14:26:09,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:26:09,680 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:26:09,682 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:26:09,682 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:26:09,688 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:26:09,689 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:26:09" (1/1) ... [2024-11-13 14:26:09,691 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78e2e847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:26:09, skipping insertion in model container [2024-11-13 14:26:09,692 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:26:09" (1/1) ... [2024-11-13 14:26:09,790 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:26:10,481 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/sv-benchmarks/c/product-lines/elevator_spec14_product19.cil.c[49225,49238] [2024-11-13 14:26:10,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:26:10,592 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:26:10,602 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [48] [2024-11-13 14:26:10,604 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1591] [2024-11-13 14:26:10,605 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [1685] [2024-11-13 14:26:10,605 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1722] [2024-11-13 14:26:10,606 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1740] [2024-11-13 14:26:10,607 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2106] [2024-11-13 14:26:10,607 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [2144] [2024-11-13 14:26:10,607 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2262] [2024-11-13 14:26:10,608 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2271] [2024-11-13 14:26:10,609 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2619] [2024-11-13 14:26:10,760 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/sv-benchmarks/c/product-lines/elevator_spec14_product19.cil.c[49225,49238] [2024-11-13 14:26:10,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:26:10,818 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:26:10,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:26:10 WrapperNode [2024-11-13 14:26:10,819 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:26:10,821 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:26:10,821 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:26:10,821 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:26:10,828 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:26:10" (1/1) ... [2024-11-13 14:26:10,871 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:26:10" (1/1) ... [2024-11-13 14:26:10,947 INFO L138 Inliner]: procedures = 91, calls = 333, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 1049 [2024-11-13 14:26:10,947 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:26:10,948 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:26:10,948 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:26:10,948 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:26:10,962 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:26:10" (1/1) ... [2024-11-13 14:26:10,963 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:26:10" (1/1) ... [2024-11-13 14:26:10,976 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:26:10" (1/1) ... [2024-11-13 14:26:11,030 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-11-13 14:26:11,034 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:26:10" (1/1) ... [2024-11-13 14:26:11,035 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:26:10" (1/1) ... [2024-11-13 14:26:11,071 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:26:10" (1/1) ... [2024-11-13 14:26:11,098 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:26:10" (1/1) ... [2024-11-13 14:26:11,106 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:26:10" (1/1) ... [2024-11-13 14:26:11,115 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:26:10" (1/1) ... [2024-11-13 14:26:11,135 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:26:11,136 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:26:11,136 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:26:11,136 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:26:11,137 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:26:10" (1/1) ... [2024-11-13 14:26:11,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:26:11,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:26:11,179 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:26:11,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:26:11,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:26:11,242 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-13 14:26:11,242 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-13 14:26:11,242 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-13 14:26:11,242 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-13 14:26:11,242 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2024-11-13 14:26:11,242 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2024-11-13 14:26:11,243 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-13 14:26:11,243 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-13 14:26:11,243 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-11-13 14:26:11,243 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-11-13 14:26:11,243 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-13 14:26:11,243 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-13 14:26:11,243 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2024-11-13 14:26:11,243 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2024-11-13 14:26:11,243 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-13 14:26:11,244 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-13 14:26:11,244 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-13 14:26:11,244 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-13 14:26:11,244 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-13 14:26:11,244 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-13 14:26:11,244 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-13 14:26:11,244 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-13 14:26:11,244 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-13 14:26:11,245 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-13 14:26:11,245 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-13 14:26:11,245 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-13 14:26:11,245 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-13 14:26:11,245 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-13 14:26:11,245 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-13 14:26:11,245 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-13 14:26:11,246 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-13 14:26:11,246 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-13 14:26:11,246 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-13 14:26:11,246 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-13 14:26:11,246 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-13 14:26:11,246 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-13 14:26:11,246 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-13 14:26:11,247 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-13 14:26:11,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:26:11,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 14:26:11,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 14:26:11,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-13 14:26:11,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-13 14:26:11,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-13 14:26:11,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-13 14:26:11,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-13 14:26:11,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-13 14:26:11,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-13 14:26:11,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-13 14:26:11,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-13 14:26:11,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-13 14:26:11,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-13 14:26:11,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-13 14:26:11,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-13 14:26:11,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-13 14:26:11,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-13 14:26:11,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-13 14:26:11,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-13 14:26:11,249 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-13 14:26:11,250 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-13 14:26:11,250 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-13 14:26:11,250 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-13 14:26:11,250 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-13 14:26:11,250 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-13 14:26:11,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:26:11,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:26:11,251 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-13 14:26:11,251 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-13 14:26:11,501 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:26:11,503 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:26:13,244 INFO L? ?]: Removed 440 outVars from TransFormulas that were not future-live. [2024-11-13 14:26:13,244 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:26:13,292 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:26:13,293 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:26:13,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:26:13 BoogieIcfgContainer [2024-11-13 14:26:13,293 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:26:13,301 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:26:13,301 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:26:13,306 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:26:13,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:26:09" (1/3) ... [2024-11-13 14:26:13,307 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e585954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:26:13, skipping insertion in model container [2024-11-13 14:26:13,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:26:10" (2/3) ... [2024-11-13 14:26:13,309 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e585954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:26:13, skipping insertion in model container [2024-11-13 14:26:13,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:26:13" (3/3) ... [2024-11-13 14:26:13,311 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product19.cil.c [2024-11-13 14:26:13,331 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:26:13,335 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec14_product19.cil.c that has 24 procedures, 532 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 14:26:13,435 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:26:13,454 INFO L333 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, 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;@265f128e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:26:13,454 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 14:26:13,463 INFO L276 IsEmpty]: Start isEmpty. Operand has 532 states, 414 states have (on average 1.6763285024154588) internal successors, (694), 430 states have internal predecessors, (694), 93 states have call successors, (93), 23 states have call predecessors, (93), 23 states have return successors, (93), 91 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-13 14:26:13,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-13 14:26:13,510 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:26:13,511 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 14:26:13,511 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:26:13,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:26:13,518 INFO L85 PathProgramCache]: Analyzing trace with hash -116074075, now seen corresponding path program 1 times [2024-11-13 14:26:13,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:26:13,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615329272] [2024-11-13 14:26:13,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:26:13,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:26:13,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:14,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:26:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:14,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:14,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:26:14,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:14,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 14:26:14,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:14,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:14,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:14,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:26:14,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:14,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-13 14:26:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:14,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:14,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:14,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:14,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:26:14,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:14,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-13 14:26:15,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:15,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:15,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:15,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-13 14:26:15,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:15,032 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:26:15,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:26:15,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615329272] [2024-11-13 14:26:15,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615329272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:26:15,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:26:15,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:26:15,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848568029] [2024-11-13 14:26:15,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:26:15,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:26:15,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:26:15,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:26:15,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:26:15,080 INFO L87 Difference]: Start difference. First operand has 532 states, 414 states have (on average 1.6763285024154588) internal successors, (694), 430 states have internal predecessors, (694), 93 states have call successors, (93), 23 states have call predecessors, (93), 23 states have return successors, (93), 91 states have call predecessors, (93), 93 states have call successors, (93) 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) [2024-11-13 14:26:21,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:26:21,880 INFO L93 Difference]: Finished difference Result 1261 states and 2116 transitions. [2024-11-13 14:26:21,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:26:21,884 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 101 [2024-11-13 14:26:21,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:26:21,909 INFO L225 Difference]: With dead ends: 1261 [2024-11-13 14:26:21,909 INFO L226 Difference]: Without dead ends: 725 [2024-11-13 14:26:21,920 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:26:21,924 INFO L432 NwaCegarLoop]: 364 mSDtfsCounter, 1319 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 2382 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1366 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 2759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 2382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:26:21,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1366 Valid, 1250 Invalid, 2759 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [377 Valid, 2382 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-13 14:26:21,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2024-11-13 14:26:22,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 527. [2024-11-13 14:26:22,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 410 states have (on average 1.6658536585365853) internal successors, (683), 425 states have internal predecessors, (683), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-13 14:26:22,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 868 transitions. [2024-11-13 14:26:22,236 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 868 transitions. Word has length 101 [2024-11-13 14:26:22,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:26:22,237 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 868 transitions. [2024-11-13 14:26:22,237 INFO L472 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) [2024-11-13 14:26:22,238 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 868 transitions. [2024-11-13 14:26:22,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-13 14:26:22,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:26:22,245 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 14:26:22,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:26:22,246 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:26:22,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:26:22,246 INFO L85 PathProgramCache]: Analyzing trace with hash -330597372, now seen corresponding path program 1 times [2024-11-13 14:26:22,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:26:22,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209495450] [2024-11-13 14:26:22,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:26:22,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:26:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:22,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:26:22,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:22,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:22,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:22,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:26:22,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:22,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-13 14:26:22,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:22,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:22,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:22,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-13 14:26:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:22,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 14:26:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:22,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:22,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:22,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:22,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:22,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-13 14:26:22,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:22,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:26:22,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:22,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:22,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:22,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-13 14:26:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:22,836 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:26:22,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:26:22,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209495450] [2024-11-13 14:26:22,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209495450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:26:22,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:26:22,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:26:22,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015947265] [2024-11-13 14:26:22,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:26:22,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:26:22,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:26:22,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:26:22,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:26:22,840 INFO L87 Difference]: Start difference. First operand 527 states and 868 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 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) [2024-11-13 14:26:28,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:26:28,404 INFO L93 Difference]: Finished difference Result 1235 states and 2043 transitions. [2024-11-13 14:26:28,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:26:28,405 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 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 102 [2024-11-13 14:26:28,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:26:28,412 INFO L225 Difference]: With dead ends: 1235 [2024-11-13 14:26:28,413 INFO L226 Difference]: Without dead ends: 725 [2024-11-13 14:26:28,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:26:28,417 INFO L432 NwaCegarLoop]: 350 mSDtfsCounter, 1300 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1347 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 2755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 374 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:26:28,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1347 Valid, 1186 Invalid, 2755 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [374 Valid, 2381 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-13 14:26:28,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2024-11-13 14:26:28,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 527. [2024-11-13 14:26:28,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 410 states have (on average 1.6634146341463414) internal successors, (682), 425 states have internal predecessors, (682), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-13 14:26:28,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 867 transitions. [2024-11-13 14:26:28,566 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 867 transitions. Word has length 102 [2024-11-13 14:26:28,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:26:28,567 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 867 transitions. [2024-11-13 14:26:28,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 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) [2024-11-13 14:26:28,567 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 867 transitions. [2024-11-13 14:26:28,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 14:26:28,582 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:26:28,583 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 14:26:28,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:26:28,583 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:26:28,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:26:28,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1068274177, now seen corresponding path program 1 times [2024-11-13 14:26:28,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:26:28,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771366940] [2024-11-13 14:26:28,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:26:28,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:26:28,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:29,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:26:29,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:29,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:29,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 14:26:29,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:29,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-13 14:26:29,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:29,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:29,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:29,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-13 14:26:29,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:29,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-13 14:26:29,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:29,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:29,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:29,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:29,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:29,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-13 14:26:29,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:29,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-13 14:26:29,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:29,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:29,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:29,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-13 14:26:29,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:29,226 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:26:29,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:26:29,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771366940] [2024-11-13 14:26:29,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771366940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:26:29,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:26:29,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:26:29,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124817823] [2024-11-13 14:26:29,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:26:29,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:26:29,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:26:29,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:26:29,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:26:29,231 INFO L87 Difference]: Start difference. First operand 527 states and 867 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 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) [2024-11-13 14:26:34,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:26:34,416 INFO L93 Difference]: Finished difference Result 1235 states and 2042 transitions. [2024-11-13 14:26:34,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:26:34,417 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 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 103 [2024-11-13 14:26:34,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:26:34,423 INFO L225 Difference]: With dead ends: 1235 [2024-11-13 14:26:34,423 INFO L226 Difference]: Without dead ends: 725 [2024-11-13 14:26:34,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:26:34,428 INFO L432 NwaCegarLoop]: 359 mSDtfsCounter, 1289 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 2373 mSolverCounterSat, 374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 2747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 374 IncrementalHoareTripleChecker+Valid, 2373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:26:34,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1336 Valid, 1212 Invalid, 2747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [374 Valid, 2373 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-13 14:26:34,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2024-11-13 14:26:34,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 527. [2024-11-13 14:26:34,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 410 states have (on average 1.6609756097560975) internal successors, (681), 425 states have internal predecessors, (681), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-13 14:26:34,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 866 transitions. [2024-11-13 14:26:34,560 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 866 transitions. Word has length 103 [2024-11-13 14:26:34,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:26:34,561 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 866 transitions. [2024-11-13 14:26:34,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 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) [2024-11-13 14:26:34,564 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 866 transitions. [2024-11-13 14:26:34,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-13 14:26:34,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:26:34,568 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 14:26:34,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:26:34,568 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:26:34,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:26:34,570 INFO L85 PathProgramCache]: Analyzing trace with hash 942778400, now seen corresponding path program 1 times [2024-11-13 14:26:34,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:26:34,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031777452] [2024-11-13 14:26:34,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:26:34,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:26:34,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:34,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:26:34,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:34,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:35,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:35,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:26:35,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:35,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:26:35,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:35,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:35,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:35,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-13 14:26:35,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:35,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:26:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:35,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:35,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:35,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:35,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:35,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 14:26:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:35,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-13 14:26:35,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:35,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:35,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:35,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-13 14:26:35,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:35,105 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:26:35,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:26:35,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031777452] [2024-11-13 14:26:35,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031777452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:26:35,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:26:35,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:26:35,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750287784] [2024-11-13 14:26:35,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:26:35,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:26:35,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:26:35,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:26:35,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:26:35,107 INFO L87 Difference]: Start difference. First operand 527 states and 866 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 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) [2024-11-13 14:26:40,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:26:40,159 INFO L93 Difference]: Finished difference Result 1235 states and 2041 transitions. [2024-11-13 14:26:40,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:26:40,160 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 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 104 [2024-11-13 14:26:40,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:26:40,165 INFO L225 Difference]: With dead ends: 1235 [2024-11-13 14:26:40,165 INFO L226 Difference]: Without dead ends: 725 [2024-11-13 14:26:40,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:26:40,170 INFO L432 NwaCegarLoop]: 345 mSDtfsCounter, 1298 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 2365 mSolverCounterSat, 376 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1345 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 2741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 376 IncrementalHoareTripleChecker+Valid, 2365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:26:40,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1345 Valid, 1172 Invalid, 2741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [376 Valid, 2365 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-13 14:26:40,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2024-11-13 14:26:40,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 527. [2024-11-13 14:26:40,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 410 states have (on average 1.6585365853658536) internal successors, (680), 425 states have internal predecessors, (680), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-13 14:26:40,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 865 transitions. [2024-11-13 14:26:40,327 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 865 transitions. Word has length 104 [2024-11-13 14:26:40,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:26:40,327 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 865 transitions. [2024-11-13 14:26:40,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 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) [2024-11-13 14:26:40,328 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 865 transitions. [2024-11-13 14:26:40,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 14:26:40,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:26:40,331 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 14:26:40,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 14:26:40,331 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:26:40,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:26:40,331 INFO L85 PathProgramCache]: Analyzing trace with hash 806535773, now seen corresponding path program 1 times [2024-11-13 14:26:40,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:26:40,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135334046] [2024-11-13 14:26:40,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:26:40,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:26:40,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:40,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:26:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:40,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:40,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:40,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:26:40,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:40,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-13 14:26:40,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:40,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:40,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:40,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 14:26:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:40,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-13 14:26:40,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:40,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:40,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:40,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:40,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:40,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-13 14:26:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:40,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 14:26:40,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:40,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:40,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:40,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 14:26:40,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:40,807 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:26:40,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:26:40,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135334046] [2024-11-13 14:26:40,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135334046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:26:40,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:26:40,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:26:40,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432530874] [2024-11-13 14:26:40,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:26:40,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:26:40,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:26:40,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:26:40,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:26:40,809 INFO L87 Difference]: Start difference. First operand 527 states and 865 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-11-13 14:26:45,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:26:45,581 INFO L93 Difference]: Finished difference Result 1235 states and 2040 transitions. [2024-11-13 14:26:45,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:26:45,582 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 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 105 [2024-11-13 14:26:45,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:26:45,588 INFO L225 Difference]: With dead ends: 1235 [2024-11-13 14:26:45,588 INFO L226 Difference]: Without dead ends: 725 [2024-11-13 14:26:45,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:26:45,593 INFO L432 NwaCegarLoop]: 359 mSDtfsCounter, 1281 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 2368 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1328 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 2741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 2368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:26:45,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1328 Valid, 1212 Invalid, 2741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 2368 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-13 14:26:45,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2024-11-13 14:26:45,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 527. [2024-11-13 14:26:45,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 410 states have (on average 1.6560975609756097) internal successors, (679), 425 states have internal predecessors, (679), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-13 14:26:45,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 864 transitions. [2024-11-13 14:26:45,737 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 864 transitions. Word has length 105 [2024-11-13 14:26:45,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:26:45,738 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 864 transitions. [2024-11-13 14:26:45,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-11-13 14:26:45,738 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 864 transitions. [2024-11-13 14:26:45,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-13 14:26:45,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:26:45,742 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 14:26:45,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 14:26:45,742 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:26:45,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:26:45,743 INFO L85 PathProgramCache]: Analyzing trace with hash 337140796, now seen corresponding path program 1 times [2024-11-13 14:26:45,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:26:45,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844719411] [2024-11-13 14:26:45,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:26:45,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:26:45,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:46,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:26:46,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:46,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:46,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:46,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:26:46,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:46,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-13 14:26:46,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:46,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:46,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:46,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-13 14:26:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:46,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-13 14:26:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:46,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:46,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:46,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:46,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-13 14:26:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:46,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-13 14:26:46,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:46,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:46,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:46,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-13 14:26:46,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:46,279 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:26:46,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:26:46,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844719411] [2024-11-13 14:26:46,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844719411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:26:46,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:26:46,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:26:46,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251696511] [2024-11-13 14:26:46,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:26:46,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:26:46,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:26:46,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:26:46,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:26:46,282 INFO L87 Difference]: Start difference. First operand 527 states and 864 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 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) [2024-11-13 14:26:51,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:26:51,614 INFO L93 Difference]: Finished difference Result 1275 states and 2104 transitions. [2024-11-13 14:26:51,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 14:26:51,615 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 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 106 [2024-11-13 14:26:51,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:26:51,620 INFO L225 Difference]: With dead ends: 1275 [2024-11-13 14:26:51,620 INFO L226 Difference]: Without dead ends: 769 [2024-11-13 14:26:51,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:26:51,624 INFO L432 NwaCegarLoop]: 329 mSDtfsCounter, 1393 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 2377 mSolverCounterSat, 389 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1440 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 2766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 389 IncrementalHoareTripleChecker+Valid, 2377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:26:51,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1440 Valid, 1123 Invalid, 2766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [389 Valid, 2377 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-13 14:26:51,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2024-11-13 14:26:51,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 547. [2024-11-13 14:26:51,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 429 states have (on average 1.6503496503496504) internal successors, (708), 444 states have internal predecessors, (708), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-13 14:26:51,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 893 transitions. [2024-11-13 14:26:51,798 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 893 transitions. Word has length 106 [2024-11-13 14:26:51,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:26:51,798 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 893 transitions. [2024-11-13 14:26:51,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 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) [2024-11-13 14:26:51,798 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 893 transitions. [2024-11-13 14:26:51,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-13 14:26:51,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:26:51,801 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 14:26:51,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 14:26:51,801 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:26:51,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:26:51,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1263808362, now seen corresponding path program 1 times [2024-11-13 14:26:51,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:26:51,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513361500] [2024-11-13 14:26:51,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:26:51,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:26:51,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:52,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:26:52,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:52,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:52,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:26:52,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:52,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:26:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:52,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:52,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:52,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:26:52,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:52,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-13 14:26:52,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:52,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:52,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:52,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:52,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:26:52,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:52,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-13 14:26:52,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:52,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:52,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:52,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-13 14:26:52,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:52,295 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:26:52,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:26:52,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513361500] [2024-11-13 14:26:52,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513361500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:26:52,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:26:52,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:26:52,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156921031] [2024-11-13 14:26:52,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:26:52,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:26:52,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:26:52,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:26:52,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:26:52,299 INFO L87 Difference]: Start difference. First operand 547 states and 893 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 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) [2024-11-13 14:26:57,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:26:57,105 INFO L93 Difference]: Finished difference Result 1259 states and 2055 transitions. [2024-11-13 14:26:57,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:26:57,106 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 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 107 [2024-11-13 14:26:57,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:26:57,111 INFO L225 Difference]: With dead ends: 1259 [2024-11-13 14:26:57,111 INFO L226 Difference]: Without dead ends: 769 [2024-11-13 14:26:57,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:26:57,114 INFO L432 NwaCegarLoop]: 353 mSDtfsCounter, 1349 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 2375 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1396 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 2755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 2375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:26:57,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1396 Valid, 1196 Invalid, 2755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 2375 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-13 14:26:57,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2024-11-13 14:26:57,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 547. [2024-11-13 14:26:57,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 429 states have (on average 1.6386946386946386) internal successors, (703), 444 states have internal predecessors, (703), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-13 14:26:57,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 888 transitions. [2024-11-13 14:26:57,264 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 888 transitions. Word has length 107 [2024-11-13 14:26:57,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:26:57,264 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 888 transitions. [2024-11-13 14:26:57,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 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) [2024-11-13 14:26:57,265 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 888 transitions. [2024-11-13 14:26:57,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-13 14:26:57,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:26:57,268 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 14:26:57,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 14:26:57,268 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:26:57,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:26:57,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1090388673, now seen corresponding path program 1 times [2024-11-13 14:26:57,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:26:57,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707039312] [2024-11-13 14:26:57,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:26:57,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:26:57,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:57,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:26:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:57,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:57,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:57,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:26:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:57,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 14:26:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:57,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:57,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:57,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 14:26:57,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:57,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-13 14:26:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:57,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:57,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:57,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:57,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:57,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-13 14:26:57,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:57,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 14:26:57,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:57,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:26:57,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:57,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-13 14:26:57,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:26:57,834 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:26:57,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:26:57,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707039312] [2024-11-13 14:26:57,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707039312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:26:57,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:26:57,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 14:26:57,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855787098] [2024-11-13 14:26:57,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:26:57,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:26:57,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:26:57,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:26:57,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:26:57,836 INFO L87 Difference]: Start difference. First operand 547 states and 888 transitions. Second operand has 9 states, 8 states have (on average 8.375) internal successors, (67), 6 states have internal predecessors, (67), 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) [2024-11-13 14:27:05,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:27:05,040 INFO L93 Difference]: Finished difference Result 1270 states and 2070 transitions. [2024-11-13 14:27:05,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 14:27:05,041 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 6 states have internal predecessors, (67), 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 108 [2024-11-13 14:27:05,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:27:05,044 INFO L225 Difference]: With dead ends: 1270 [2024-11-13 14:27:05,045 INFO L226 Difference]: Without dead ends: 789 [2024-11-13 14:27:05,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2024-11-13 14:27:05,047 INFO L432 NwaCegarLoop]: 347 mSDtfsCounter, 1386 mSDsluCounter, 1839 mSDsCounter, 0 mSdLazyCounter, 4536 mSolverCounterSat, 382 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1433 SdHoareTripleChecker+Valid, 2186 SdHoareTripleChecker+Invalid, 4918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 382 IncrementalHoareTripleChecker+Valid, 4536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:27:05,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1433 Valid, 2186 Invalid, 4918 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [382 Valid, 4536 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-13 14:27:05,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2024-11-13 14:27:05,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 560. [2024-11-13 14:27:05,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 439 states have (on average 1.6355353075170842) internal successors, (718), 456 states have internal predecessors, (718), 94 states have call successors, (94), 25 states have call predecessors, (94), 26 states have return successors, (95), 91 states have call predecessors, (95), 93 states have call successors, (95) [2024-11-13 14:27:05,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 907 transitions. [2024-11-13 14:27:05,206 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 907 transitions. Word has length 108 [2024-11-13 14:27:05,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:27:05,207 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 907 transitions. [2024-11-13 14:27:05,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 6 states have internal predecessors, (67), 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) [2024-11-13 14:27:05,207 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 907 transitions. [2024-11-13 14:27:05,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-13 14:27:05,211 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:27:05,211 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 14:27:05,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 14:27:05,212 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:27:05,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:27:05,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1076138528, now seen corresponding path program 1 times [2024-11-13 14:27:05,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:27:05,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855716209] [2024-11-13 14:27:05,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:27:05,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:27:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:05,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:27:05,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:05,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:05,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:05,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:27:05,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:05,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 14:27:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:05,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:05,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:05,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 14:27:05,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:05,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-13 14:27:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:05,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:05,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:05,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:05,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-13 14:27:05,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:05,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 14:27:05,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:05,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:05,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:05,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-13 14:27:05,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:05,654 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:27:05,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:27:05,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855716209] [2024-11-13 14:27:05,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855716209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:27:05,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:27:05,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:27:05,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304882517] [2024-11-13 14:27:05,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:27:05,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:27:05,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:27:05,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:27:05,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:27:05,659 INFO L87 Difference]: Start difference. First operand 560 states and 907 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-11-13 14:27:10,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:27:10,648 INFO L93 Difference]: Finished difference Result 1290 states and 2101 transitions. [2024-11-13 14:27:10,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:27:10,649 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 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 108 [2024-11-13 14:27:10,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:27:10,655 INFO L225 Difference]: With dead ends: 1290 [2024-11-13 14:27:10,655 INFO L226 Difference]: Without dead ends: 791 [2024-11-13 14:27:10,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:27:10,659 INFO L432 NwaCegarLoop]: 362 mSDtfsCounter, 1335 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 2361 mSolverCounterSat, 378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 2739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 378 IncrementalHoareTripleChecker+Valid, 2361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:27:10,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1382 Valid, 1222 Invalid, 2739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [378 Valid, 2361 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-13 14:27:10,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2024-11-13 14:27:10,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 560. [2024-11-13 14:27:10,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 439 states have (on average 1.6241457858769932) internal successors, (713), 456 states have internal predecessors, (713), 94 states have call successors, (94), 25 states have call predecessors, (94), 26 states have return successors, (95), 91 states have call predecessors, (95), 93 states have call successors, (95) [2024-11-13 14:27:10,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 902 transitions. [2024-11-13 14:27:10,815 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 902 transitions. Word has length 108 [2024-11-13 14:27:10,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:27:10,816 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 902 transitions. [2024-11-13 14:27:10,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-11-13 14:27:10,816 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 902 transitions. [2024-11-13 14:27:10,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-13 14:27:10,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:27:10,819 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 14:27:10,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 14:27:10,820 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:27:10,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:27:10,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1542647632, now seen corresponding path program 1 times [2024-11-13 14:27:10,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:27:10,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226926089] [2024-11-13 14:27:10,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:27:10,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:27:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:11,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:27:11,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:11,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:11,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:11,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:27:11,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:11,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 14:27:11,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:11,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:11,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:11,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 14:27:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:11,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-13 14:27:11,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:11,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:11,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:11,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:11,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:11,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-13 14:27:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:11,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 14:27:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:11,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:11,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:11,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-13 14:27:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:11,277 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:27:11,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:27:11,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226926089] [2024-11-13 14:27:11,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226926089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:27:11,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:27:11,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:27:11,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628222302] [2024-11-13 14:27:11,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:27:11,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:27:11,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:27:11,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:27:11,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:27:11,281 INFO L87 Difference]: Start difference. First operand 560 states and 902 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:27:16,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:27:16,054 INFO L93 Difference]: Finished difference Result 1262 states and 2054 transitions. [2024-11-13 14:27:16,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:27:16,055 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2024-11-13 14:27:16,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:27:16,060 INFO L225 Difference]: With dead ends: 1262 [2024-11-13 14:27:16,060 INFO L226 Difference]: Without dead ends: 778 [2024-11-13 14:27:16,062 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:27:16,063 INFO L432 NwaCegarLoop]: 345 mSDtfsCounter, 1331 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 2270 mSolverCounterSat, 376 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1378 SdHoareTripleChecker+Valid, 1173 SdHoareTripleChecker+Invalid, 2646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 376 IncrementalHoareTripleChecker+Valid, 2270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-13 14:27:16,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1378 Valid, 1173 Invalid, 2646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [376 Valid, 2270 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-13 14:27:16,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2024-11-13 14:27:16,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 562. [2024-11-13 14:27:16,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 441 states have (on average 1.619047619047619) internal successors, (714), 458 states have internal predecessors, (714), 94 states have call successors, (94), 25 states have call predecessors, (94), 26 states have return successors, (95), 91 states have call predecessors, (95), 93 states have call successors, (95) [2024-11-13 14:27:16,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 903 transitions. [2024-11-13 14:27:16,227 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 903 transitions. Word has length 109 [2024-11-13 14:27:16,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:27:16,228 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 903 transitions. [2024-11-13 14:27:16,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:27:16,228 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 903 transitions. [2024-11-13 14:27:16,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-13 14:27:16,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:27:16,232 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 14:27:16,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 14:27:16,232 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:27:16,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:27:16,233 INFO L85 PathProgramCache]: Analyzing trace with hash 732247952, now seen corresponding path program 1 times [2024-11-13 14:27:16,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:27:16,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271730316] [2024-11-13 14:27:16,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:27:16,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:27:16,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:16,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:27:16,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:16,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:16,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:16,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:27:16,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:16,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 14:27:16,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:16,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:16,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:16,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 14:27:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:16,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-13 14:27:16,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:16,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:16,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:16,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:16,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-13 14:27:16,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:16,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 14:27:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:16,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:16,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:16,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-13 14:27:16,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:16,670 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:27:16,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:27:16,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271730316] [2024-11-13 14:27:16,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271730316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:27:16,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:27:16,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:27:16,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009249095] [2024-11-13 14:27:16,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:27:16,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:27:16,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:27:16,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:27:16,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:27:16,673 INFO L87 Difference]: Start difference. First operand 562 states and 903 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 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) [2024-11-13 14:27:21,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:27:21,672 INFO L93 Difference]: Finished difference Result 1294 states and 2095 transitions. [2024-11-13 14:27:21,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:27:21,673 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 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 109 [2024-11-13 14:27:21,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:27:21,677 INFO L225 Difference]: With dead ends: 1294 [2024-11-13 14:27:21,677 INFO L226 Difference]: Without dead ends: 793 [2024-11-13 14:27:21,679 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:27:21,680 INFO L432 NwaCegarLoop]: 360 mSDtfsCounter, 1330 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 2344 mSolverCounterSat, 378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1377 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 2722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 378 IncrementalHoareTripleChecker+Valid, 2344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:27:21,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1377 Valid, 1216 Invalid, 2722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [378 Valid, 2344 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-13 14:27:21,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2024-11-13 14:27:21,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 562. [2024-11-13 14:27:21,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 441 states have (on average 1.6077097505668934) internal successors, (709), 458 states have internal predecessors, (709), 94 states have call successors, (94), 25 states have call predecessors, (94), 26 states have return successors, (95), 91 states have call predecessors, (95), 93 states have call successors, (95) [2024-11-13 14:27:21,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 898 transitions. [2024-11-13 14:27:21,823 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 898 transitions. Word has length 109 [2024-11-13 14:27:21,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:27:21,823 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 898 transitions. [2024-11-13 14:27:21,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 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) [2024-11-13 14:27:21,823 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 898 transitions. [2024-11-13 14:27:21,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-13 14:27:21,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:27:21,827 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 14:27:21,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 14:27:21,827 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:27:21,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:27:21,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1434943811, now seen corresponding path program 1 times [2024-11-13 14:27:21,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:27:21,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690993017] [2024-11-13 14:27:21,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:27:21,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:27:21,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:22,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:27:22,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:22,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:22,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:27:22,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:22,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 14:27:22,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:22,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:22,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:22,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-13 14:27:22,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:22,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:27:22,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:22,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:22,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:22,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:22,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:27:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:22,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-13 14:27:22,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:22,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:22,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:22,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 14:27:22,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:22,383 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:27:22,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:27:22,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690993017] [2024-11-13 14:27:22,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690993017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:27:22,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:27:22,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 14:27:22,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846017393] [2024-11-13 14:27:22,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:27:22,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:27:22,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:27:22,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:27:22,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:27:22,386 INFO L87 Difference]: Start difference. First operand 562 states and 898 transitions. Second operand has 9 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 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) [2024-11-13 14:27:29,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:27:29,244 INFO L93 Difference]: Finished difference Result 1280 states and 2066 transitions. [2024-11-13 14:27:29,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 14:27:29,245 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 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 110 [2024-11-13 14:27:29,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:27:29,250 INFO L225 Difference]: With dead ends: 1280 [2024-11-13 14:27:29,250 INFO L226 Difference]: Without dead ends: 791 [2024-11-13 14:27:29,252 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2024-11-13 14:27:29,253 INFO L432 NwaCegarLoop]: 339 mSDtfsCounter, 1334 mSDsluCounter, 1804 mSDsCounter, 0 mSdLazyCounter, 4386 mSolverCounterSat, 385 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 2143 SdHoareTripleChecker+Invalid, 4771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 385 IncrementalHoareTripleChecker+Valid, 4386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:27:29,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1381 Valid, 2143 Invalid, 4771 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [385 Valid, 4386 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-13 14:27:29,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2024-11-13 14:27:29,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 568. [2024-11-13 14:27:29,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 447 states have (on average 1.5973154362416107) internal successors, (714), 464 states have internal predecessors, (714), 94 states have call successors, (94), 25 states have call predecessors, (94), 26 states have return successors, (95), 91 states have call predecessors, (95), 93 states have call successors, (95) [2024-11-13 14:27:29,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 903 transitions. [2024-11-13 14:27:29,416 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 903 transitions. Word has length 110 [2024-11-13 14:27:29,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:27:29,417 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 903 transitions. [2024-11-13 14:27:29,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 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) [2024-11-13 14:27:29,417 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 903 transitions. [2024-11-13 14:27:29,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-13 14:27:29,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:27:29,421 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 14:27:29,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 14:27:29,421 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:27:29,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:27:29,422 INFO L85 PathProgramCache]: Analyzing trace with hash -173768475, now seen corresponding path program 1 times [2024-11-13 14:27:29,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:27:29,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147878255] [2024-11-13 14:27:29,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:27:29,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:27:29,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:29,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:27:29,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:29,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:29,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:29,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:27:29,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:29,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 14:27:29,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:29,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:29,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:29,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-13 14:27:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:29,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:27:29,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:29,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:29,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:29,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:29,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:29,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:27:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:29,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-13 14:27:29,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:29,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:29,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:29,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 14:27:29,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:29,824 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:27:29,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:27:29,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147878255] [2024-11-13 14:27:29,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147878255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:27:29,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:27:29,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:27:29,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941722084] [2024-11-13 14:27:29,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:27:29,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:27:29,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:27:29,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:27:29,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:27:29,827 INFO L87 Difference]: Start difference. First operand 568 states and 903 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-11-13 14:27:34,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:27:34,793 INFO L93 Difference]: Finished difference Result 1309 states and 2100 transitions. [2024-11-13 14:27:34,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:27:34,794 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 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 110 [2024-11-13 14:27:34,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:27:34,800 INFO L225 Difference]: With dead ends: 1309 [2024-11-13 14:27:34,800 INFO L226 Difference]: Without dead ends: 802 [2024-11-13 14:27:34,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:27:34,804 INFO L432 NwaCegarLoop]: 366 mSDtfsCounter, 1318 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 2321 mSolverCounterSat, 378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1365 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 2699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 378 IncrementalHoareTripleChecker+Valid, 2321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:27:34,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1365 Valid, 1235 Invalid, 2699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [378 Valid, 2321 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-13 14:27:34,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2024-11-13 14:27:35,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 568. [2024-11-13 14:27:35,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 447 states have (on average 1.5861297539149888) internal successors, (709), 464 states have internal predecessors, (709), 94 states have call successors, (94), 25 states have call predecessors, (94), 26 states have return successors, (95), 91 states have call predecessors, (95), 93 states have call successors, (95) [2024-11-13 14:27:35,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 898 transitions. [2024-11-13 14:27:35,017 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 898 transitions. Word has length 110 [2024-11-13 14:27:35,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:27:35,018 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 898 transitions. [2024-11-13 14:27:35,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-11-13 14:27:35,018 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 898 transitions. [2024-11-13 14:27:35,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-13 14:27:35,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:27:35,021 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 14:27:35,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 14:27:35,022 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:27:35,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:27:35,022 INFO L85 PathProgramCache]: Analyzing trace with hash 901370133, now seen corresponding path program 1 times [2024-11-13 14:27:35,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:27:35,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804535781] [2024-11-13 14:27:35,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:27:35,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:27:35,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:35,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:27:35,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:35,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:35,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:35,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:27:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:35,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 14:27:35,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:35,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:35,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:35,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 14:27:35,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:35,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:27:35,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:35,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:35,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:35,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:35,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:35,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-13 14:27:35,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:35,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 14:27:35,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:35,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:35,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:35,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 14:27:35,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:35,477 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:27:35,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:27:35,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804535781] [2024-11-13 14:27:35,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804535781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:27:35,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:27:35,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:27:35,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786961747] [2024-11-13 14:27:35,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:27:35,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:27:35,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:27:35,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:27:35,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:27:35,480 INFO L87 Difference]: Start difference. First operand 568 states and 898 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:27:40,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:27:40,741 INFO L93 Difference]: Finished difference Result 1291 states and 2069 transitions. [2024-11-13 14:27:40,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:27:40,742 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2024-11-13 14:27:40,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:27:40,747 INFO L225 Difference]: With dead ends: 1291 [2024-11-13 14:27:40,747 INFO L226 Difference]: Without dead ends: 799 [2024-11-13 14:27:40,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:27:40,749 INFO L432 NwaCegarLoop]: 354 mSDtfsCounter, 1308 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 2239 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1355 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 2616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 2239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:27:40,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1355 Valid, 1199 Invalid, 2616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 2239 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-13 14:27:40,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2024-11-13 14:27:40,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 576. [2024-11-13 14:27:40,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 455 states have (on average 1.5736263736263736) internal successors, (716), 472 states have internal predecessors, (716), 94 states have call successors, (94), 25 states have call predecessors, (94), 26 states have return successors, (95), 91 states have call predecessors, (95), 93 states have call successors, (95) [2024-11-13 14:27:40,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 905 transitions. [2024-11-13 14:27:40,927 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 905 transitions. Word has length 111 [2024-11-13 14:27:40,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:27:40,929 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 905 transitions. [2024-11-13 14:27:40,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:27:40,930 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 905 transitions. [2024-11-13 14:27:40,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-13 14:27:40,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:27:40,932 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 14:27:40,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 14:27:40,933 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:27:40,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:27:40,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1325817099, now seen corresponding path program 1 times [2024-11-13 14:27:40,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:27:40,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123804801] [2024-11-13 14:27:40,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:27:40,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:27:40,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:41,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:27:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:41,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:41,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:27:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:41,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 14:27:41,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:41,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:41,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 14:27:41,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:41,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:27:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:41,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:41,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:41,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:41,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-13 14:27:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:41,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 14:27:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:41,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:41,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 14:27:41,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:41,318 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:27:41,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:27:41,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123804801] [2024-11-13 14:27:41,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123804801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:27:41,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:27:41,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:27:41,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471407613] [2024-11-13 14:27:41,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:27:41,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:27:41,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:27:41,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:27:41,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:27:41,320 INFO L87 Difference]: Start difference. First operand 576 states and 905 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 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) [2024-11-13 14:27:46,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:27:46,488 INFO L93 Difference]: Finished difference Result 1350 states and 2137 transitions. [2024-11-13 14:27:46,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:27:46,489 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 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 111 [2024-11-13 14:27:46,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:27:46,492 INFO L225 Difference]: With dead ends: 1350 [2024-11-13 14:27:46,492 INFO L226 Difference]: Without dead ends: 771 [2024-11-13 14:27:46,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:27:46,494 INFO L432 NwaCegarLoop]: 346 mSDtfsCounter, 1274 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1321 SdHoareTripleChecker+Valid, 1176 SdHoareTripleChecker+Invalid, 2653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 378 IncrementalHoareTripleChecker+Valid, 2275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:27:46,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1321 Valid, 1176 Invalid, 2653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [378 Valid, 2275 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-13 14:27:46,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2024-11-13 14:27:46,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 557. [2024-11-13 14:27:46,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 439 states have (on average 1.5785876993166288) internal successors, (693), 454 states have internal predecessors, (693), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-13 14:27:46,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 878 transitions. [2024-11-13 14:27:46,674 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 878 transitions. Word has length 111 [2024-11-13 14:27:46,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:27:46,675 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 878 transitions. [2024-11-13 14:27:46,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 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) [2024-11-13 14:27:46,675 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 878 transitions. [2024-11-13 14:27:46,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-13 14:27:46,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:27:46,678 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 14:27:46,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 14:27:46,678 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:27:46,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:27:46,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1104139896, now seen corresponding path program 1 times [2024-11-13 14:27:46,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:27:46,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706522549] [2024-11-13 14:27:46,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:27:46,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:27:46,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:46,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:27:47,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:47,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:47,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:27:47,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:47,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:27:47,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:47,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:47,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-13 14:27:47,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:47,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-13 14:27:47,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:47,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:47,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:47,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:47,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:47,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-13 14:27:47,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:47,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-13 14:27:47,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:47,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:47,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:47,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-13 14:27:47,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:47,179 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 14:27:47,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:27:47,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706522549] [2024-11-13 14:27:47,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706522549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:27:47,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:27:47,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 14:27:47,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658813391] [2024-11-13 14:27:47,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:27:47,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:27:47,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:27:47,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:27:47,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:27:47,184 INFO L87 Difference]: Start difference. First operand 557 states and 878 transitions. Second operand has 9 states, 8 states have (on average 8.875) internal successors, (71), 6 states have internal predecessors, (71), 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) [2024-11-13 14:27:53,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:27:53,929 INFO L93 Difference]: Finished difference Result 1279 states and 2041 transitions. [2024-11-13 14:27:53,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 14:27:53,930 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 6 states have internal predecessors, (71), 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 112 [2024-11-13 14:27:53,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:27:53,933 INFO L225 Difference]: With dead ends: 1279 [2024-11-13 14:27:53,934 INFO L226 Difference]: Without dead ends: 786 [2024-11-13 14:27:53,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2024-11-13 14:27:53,936 INFO L432 NwaCegarLoop]: 342 mSDtfsCounter, 1297 mSDsluCounter, 1824 mSDsCounter, 0 mSdLazyCounter, 4293 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1344 SdHoareTripleChecker+Valid, 2166 SdHoareTripleChecker+Invalid, 4674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 4293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:27:53,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1344 Valid, 2166 Invalid, 4674 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [381 Valid, 4293 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-13 14:27:53,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2024-11-13 14:27:54,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 567. [2024-11-13 14:27:54,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 449 states have (on average 1.5657015590200445) internal successors, (703), 464 states have internal predecessors, (703), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-13 14:27:54,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 888 transitions. [2024-11-13 14:27:54,108 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 888 transitions. Word has length 112 [2024-11-13 14:27:54,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:27:54,109 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 888 transitions. [2024-11-13 14:27:54,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 6 states have internal predecessors, (71), 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) [2024-11-13 14:27:54,109 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 888 transitions. [2024-11-13 14:27:54,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-13 14:27:54,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:27:54,111 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 14:27:54,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 14:27:54,111 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:27:54,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:27:54,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1709810806, now seen corresponding path program 1 times [2024-11-13 14:27:54,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:27:54,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888203846] [2024-11-13 14:27:54,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:27:54,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:27:54,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:54,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:27:54,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:54,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:54,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:54,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:27:54,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:54,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:27:54,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:54,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:54,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:27:54,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:54,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 14:27:54,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:54,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:54,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:54,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:54,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 14:27:54,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:54,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-13 14:27:54,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:54,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:54,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:54,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-13 14:27:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:54,547 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 14:27:54,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:27:54,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888203846] [2024-11-13 14:27:54,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888203846] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:27:54,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532644490] [2024-11-13 14:27:54,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:27:54,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:27:54,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:27:54,551 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:27:54,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 14:27:54,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:54,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 1212 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 14:27:54,978 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:27:55,011 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-13 14:27:55,011 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:27:55,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532644490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:27:55,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:27:55,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-13 14:27:55,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60808000] [2024-11-13 14:27:55,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:27:55,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:27:55,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:27:55,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:27:55,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:27:55,017 INFO L87 Difference]: Start difference. First operand 567 states and 888 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2024-11-13 14:27:55,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:27:55,387 INFO L93 Difference]: Finished difference Result 1544 states and 2497 transitions. [2024-11-13 14:27:55,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:27:55,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 113 [2024-11-13 14:27:55,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:27:55,395 INFO L225 Difference]: With dead ends: 1544 [2024-11-13 14:27:55,395 INFO L226 Difference]: Without dead ends: 1053 [2024-11-13 14:27:55,399 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:27:55,399 INFO L432 NwaCegarLoop]: 913 mSDtfsCounter, 829 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:27:55,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 1681 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:27:55,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2024-11-13 14:27:55,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 1046. [2024-11-13 14:27:55,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 822 states have (on average 1.5924574209245743) internal successors, (1309), 850 states have internal predecessors, (1309), 178 states have call successors, (178), 46 states have call predecessors, (178), 45 states have return successors, (188), 175 states have call predecessors, (188), 176 states have call successors, (188) [2024-11-13 14:27:55,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1675 transitions. [2024-11-13 14:27:55,639 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1675 transitions. Word has length 113 [2024-11-13 14:27:55,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:27:55,640 INFO L471 AbstractCegarLoop]: Abstraction has 1046 states and 1675 transitions. [2024-11-13 14:27:55,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2024-11-13 14:27:55,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1675 transitions. [2024-11-13 14:27:55,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-13 14:27:55,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:27:55,643 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 14:27:55,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 14:27:55,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-13 14:27:55,847 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:27:55,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:27:55,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1771850420, now seen corresponding path program 1 times [2024-11-13 14:27:55,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:27:55,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151750776] [2024-11-13 14:27:55,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:27:55,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:27:55,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:56,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:27:56,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:56,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:56,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:56,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:27:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:56,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:27:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:56,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:56,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:56,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:27:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:56,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 14:27:56,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:56,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:56,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:56,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:56,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 14:27:56,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:56,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-13 14:27:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:56,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:56,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:56,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-13 14:27:56,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:56,319 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 14:27:56,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:27:56,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151750776] [2024-11-13 14:27:56,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151750776] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:27:56,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692353213] [2024-11-13 14:27:56,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:27:56,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:27:56,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:27:56,322 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:27:56,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 14:27:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:56,750 INFO L255 TraceCheckSpWp]: Trace formula consists of 1213 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:27:56,755 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:27:56,928 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 14:27:56,928 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:27:56,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692353213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:27:56,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:27:56,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-11-13 14:27:56,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222518360] [2024-11-13 14:27:56,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:27:56,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:27:56,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:27:56,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:27:56,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:27:56,931 INFO L87 Difference]: Start difference. First operand 1046 states and 1675 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (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) [2024-11-13 14:27:57,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:27:57,903 INFO L93 Difference]: Finished difference Result 2032 states and 3335 transitions. [2024-11-13 14:27:57,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:27:57,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (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 113 [2024-11-13 14:27:57,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:27:57,910 INFO L225 Difference]: With dead ends: 2032 [2024-11-13 14:27:57,910 INFO L226 Difference]: Without dead ends: 1062 [2024-11-13 14:27:57,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:27:57,918 INFO L432 NwaCegarLoop]: 814 mSDtfsCounter, 798 mSDsluCounter, 1264 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 2078 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:27:57,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 2078 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:27:57,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2024-11-13 14:27:58,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 1062. [2024-11-13 14:27:58,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 836 states have (on average 1.5944976076555024) internal successors, (1333), 864 states have internal predecessors, (1333), 178 states have call successors, (178), 48 states have call predecessors, (178), 47 states have return successors, (190), 175 states have call predecessors, (190), 176 states have call successors, (190) [2024-11-13 14:27:58,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1701 transitions. [2024-11-13 14:27:58,267 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1701 transitions. Word has length 113 [2024-11-13 14:27:58,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:27:58,267 INFO L471 AbstractCegarLoop]: Abstraction has 1062 states and 1701 transitions. [2024-11-13 14:27:58,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (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) [2024-11-13 14:27:58,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1701 transitions. [2024-11-13 14:27:58,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-13 14:27:58,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:27:58,270 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 14:27:58,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 14:27:58,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-13 14:27:58,473 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:27:58,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:27:58,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1517135100, now seen corresponding path program 1 times [2024-11-13 14:27:58,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:27:58,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831844140] [2024-11-13 14:27:58,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:27:58,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:27:58,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:58,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:27:58,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:58,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:58,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:27:58,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:58,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:27:58,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:58,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:58,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:58,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-13 14:27:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:58,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-13 14:27:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:58,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:58,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:58,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-13 14:27:58,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:58,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-13 14:27:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:58,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:27:58,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:58,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-13 14:27:58,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:58,917 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-13 14:27:58,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:27:58,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831844140] [2024-11-13 14:27:58,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831844140] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:27:58,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217931951] [2024-11-13 14:27:58,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:27:58,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:27:58,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:27:58,921 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:27:58,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 14:27:59,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:27:59,338 INFO L255 TraceCheckSpWp]: Trace formula consists of 1216 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:27:59,348 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:27:59,541 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-13 14:27:59,541 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:27:59,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217931951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:27:59,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:27:59,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-11-13 14:27:59,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258980411] [2024-11-13 14:27:59,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:27:59,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:27:59,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:27:59,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:27:59,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:27:59,551 INFO L87 Difference]: Start difference. First operand 1062 states and 1701 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (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) [2024-11-13 14:28:00,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:00,565 INFO L93 Difference]: Finished difference Result 2064 states and 3381 transitions. [2024-11-13 14:28:00,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:28:00,565 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (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 116 [2024-11-13 14:28:00,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:00,573 INFO L225 Difference]: With dead ends: 2064 [2024-11-13 14:28:00,573 INFO L226 Difference]: Without dead ends: 1078 [2024-11-13 14:28:00,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:28:00,581 INFO L432 NwaCegarLoop]: 811 mSDtfsCounter, 785 mSDsluCounter, 1264 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 2075 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:00,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 2075 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 14:28:00,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2024-11-13 14:28:00,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1078. [2024-11-13 14:28:00,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 850 states have (on average 1.596470588235294) internal successors, (1357), 878 states have internal predecessors, (1357), 178 states have call successors, (178), 50 states have call predecessors, (178), 49 states have return successors, (192), 175 states have call predecessors, (192), 176 states have call successors, (192) [2024-11-13 14:28:00,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1727 transitions. [2024-11-13 14:28:00,904 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1727 transitions. Word has length 116 [2024-11-13 14:28:00,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:00,905 INFO L471 AbstractCegarLoop]: Abstraction has 1078 states and 1727 transitions. [2024-11-13 14:28:00,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (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) [2024-11-13 14:28:00,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1727 transitions. [2024-11-13 14:28:00,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-13 14:28:00,908 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:00,908 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 14:28:00,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 14:28:01,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:28:01,112 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:01,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:01,112 INFO L85 PathProgramCache]: Analyzing trace with hash 684600008, now seen corresponding path program 1 times [2024-11-13 14:28:01,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:01,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060254072] [2024-11-13 14:28:01,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:01,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:01,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:01,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:28:01,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:01,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:01,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:01,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:28:01,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:01,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:28:01,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:01,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:01,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-13 14:28:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:01,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-13 14:28:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:01,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:01,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:01,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:01,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 14:28:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:01,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 14:28:01,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:01,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:01,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:01,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-13 14:28:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:01,564 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-13 14:28:01,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:01,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060254072] [2024-11-13 14:28:01,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060254072] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:28:01,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195390910] [2024-11-13 14:28:01,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:01,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:28:01,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:28:01,567 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:28:01,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 14:28:01,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:01,962 INFO L255 TraceCheckSpWp]: Trace formula consists of 1219 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:28:01,966 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:28:02,158 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-13 14:28:02,158 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:28:02,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195390910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:02,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:28:02,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-11-13 14:28:02,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108961271] [2024-11-13 14:28:02,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:02,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:28:02,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:02,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:28:02,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:28:02,161 INFO L87 Difference]: Start difference. First operand 1078 states and 1727 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2024-11-13 14:28:03,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:03,040 INFO L93 Difference]: Finished difference Result 2096 states and 3427 transitions. [2024-11-13 14:28:03,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:28:03,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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 119 [2024-11-13 14:28:03,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:03,047 INFO L225 Difference]: With dead ends: 2096 [2024-11-13 14:28:03,048 INFO L226 Difference]: Without dead ends: 1094 [2024-11-13 14:28:03,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:28:03,055 INFO L432 NwaCegarLoop]: 808 mSDtfsCounter, 773 mSDsluCounter, 1264 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 2072 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:03,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 2072 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:28:03,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2024-11-13 14:28:03,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 1094. [2024-11-13 14:28:03,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 864 states have (on average 1.5983796296296295) internal successors, (1381), 892 states have internal predecessors, (1381), 178 states have call successors, (178), 52 states have call predecessors, (178), 51 states have return successors, (194), 175 states have call predecessors, (194), 176 states have call successors, (194) [2024-11-13 14:28:03,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1753 transitions. [2024-11-13 14:28:03,342 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1753 transitions. Word has length 119 [2024-11-13 14:28:03,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:03,343 INFO L471 AbstractCegarLoop]: Abstraction has 1094 states and 1753 transitions. [2024-11-13 14:28:03,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2024-11-13 14:28:03,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1753 transitions. [2024-11-13 14:28:03,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-13 14:28:03,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:03,345 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 14:28:03,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 14:28:03,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:28:03,545 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:03,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:03,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1210257520, now seen corresponding path program 1 times [2024-11-13 14:28:03,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:03,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778128921] [2024-11-13 14:28:03,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:03,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:03,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:03,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:28:03,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:03,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:03,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:03,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:28:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:03,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:28:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:03,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:03,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:03,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-13 14:28:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:03,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:28:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:03,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:03,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:03,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:03,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:03,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 14:28:03,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:03,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-13 14:28:03,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:03,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:03,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-13 14:28:03,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:03,973 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-13 14:28:03,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:03,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778128921] [2024-11-13 14:28:03,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778128921] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:28:03,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302183277] [2024-11-13 14:28:03,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:03,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:28:03,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:28:03,975 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:28:03,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 14:28:04,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:04,372 INFO L255 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:28:04,376 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:28:04,512 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-13 14:28:04,512 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:28:04,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302183277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:04,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:28:04,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-11-13 14:28:04,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21894321] [2024-11-13 14:28:04,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:04,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:28:04,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:04,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:28:04,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:28:04,514 INFO L87 Difference]: Start difference. First operand 1094 states and 1753 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 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) [2024-11-13 14:28:05,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:05,398 INFO L93 Difference]: Finished difference Result 2128 states and 3473 transitions. [2024-11-13 14:28:05,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:28:05,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 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 122 [2024-11-13 14:28:05,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:05,407 INFO L225 Difference]: With dead ends: 2128 [2024-11-13 14:28:05,407 INFO L226 Difference]: Without dead ends: 1110 [2024-11-13 14:28:05,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:28:05,414 INFO L432 NwaCegarLoop]: 805 mSDtfsCounter, 780 mSDsluCounter, 1264 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 2069 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:05,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 2069 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:28:05,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2024-11-13 14:28:05,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 1110. [2024-11-13 14:28:05,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 878 states have (on average 1.6002277904328017) internal successors, (1405), 906 states have internal predecessors, (1405), 178 states have call successors, (178), 54 states have call predecessors, (178), 53 states have return successors, (196), 175 states have call predecessors, (196), 176 states have call successors, (196) [2024-11-13 14:28:05,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1779 transitions. [2024-11-13 14:28:05,661 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1779 transitions. Word has length 122 [2024-11-13 14:28:05,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:05,662 INFO L471 AbstractCegarLoop]: Abstraction has 1110 states and 1779 transitions. [2024-11-13 14:28:05,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 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) [2024-11-13 14:28:05,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1779 transitions. [2024-11-13 14:28:05,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-13 14:28:05,664 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:05,664 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 14:28:05,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 14:28:05,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:28:05,865 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:05,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:05,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1269838404, now seen corresponding path program 1 times [2024-11-13 14:28:05,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:05,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221414290] [2024-11-13 14:28:05,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:05,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:06,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:28:06,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:06,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:06,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:06,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:28:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:06,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:28:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:06,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:06,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:06,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-13 14:28:06,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:06,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 14:28:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:06,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:06,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:06,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:06,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:06,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-13 14:28:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:06,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-13 14:28:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:06,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:06,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:06,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-13 14:28:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:06,737 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-13 14:28:06,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:06,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221414290] [2024-11-13 14:28:06,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221414290] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:28:06,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554960382] [2024-11-13 14:28:06,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:06,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:28:06,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:28:06,741 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:28:06,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 14:28:07,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:07,193 INFO L255 TraceCheckSpWp]: Trace formula consists of 1225 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 14:28:07,196 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:28:07,359 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-13 14:28:07,359 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:28:07,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554960382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:07,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:28:07,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [12] total 13 [2024-11-13 14:28:07,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154983442] [2024-11-13 14:28:07,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:07,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:28:07,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:07,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:28:07,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:28:07,361 INFO L87 Difference]: Start difference. First operand 1110 states and 1779 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 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) [2024-11-13 14:28:07,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:07,916 INFO L93 Difference]: Finished difference Result 2495 states and 3993 transitions. [2024-11-13 14:28:07,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:28:07,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 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 125 [2024-11-13 14:28:07,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:07,929 INFO L225 Difference]: With dead ends: 2495 [2024-11-13 14:28:07,929 INFO L226 Difference]: Without dead ends: 1461 [2024-11-13 14:28:07,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:28:07,936 INFO L432 NwaCegarLoop]: 931 mSDtfsCounter, 554 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 1324 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:07,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 1324 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:28:07,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2024-11-13 14:28:08,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1459. [2024-11-13 14:28:08,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1459 states, 1158 states have (on average 1.5552677029360966) internal successors, (1801), 1182 states have internal predecessors, (1801), 221 states have call successors, (221), 82 states have call predecessors, (221), 79 states have return successors, (268), 218 states have call predecessors, (268), 217 states have call successors, (268) [2024-11-13 14:28:08,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1459 states to 1459 states and 2290 transitions. [2024-11-13 14:28:08,311 INFO L78 Accepts]: Start accepts. Automaton has 1459 states and 2290 transitions. Word has length 125 [2024-11-13 14:28:08,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:08,311 INFO L471 AbstractCegarLoop]: Abstraction has 1459 states and 2290 transitions. [2024-11-13 14:28:08,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 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) [2024-11-13 14:28:08,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1459 states and 2290 transitions. [2024-11-13 14:28:08,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-13 14:28:08,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:08,315 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 14:28:08,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 14:28:08,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:28:08,516 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:08,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:08,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1068014470, now seen corresponding path program 1 times [2024-11-13 14:28:08,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:08,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396953995] [2024-11-13 14:28:08,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:08,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:09,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:28:09,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:09,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:09,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:28:09,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:09,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:28:09,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:09,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:09,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-13 14:28:09,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:09,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 14:28:09,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:09,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:09,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:09,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:09,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:09,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-13 14:28:09,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:09,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-13 14:28:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:09,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:09,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:09,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-13 14:28:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:09,339 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-13 14:28:09,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:09,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396953995] [2024-11-13 14:28:09,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396953995] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:28:09,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567258034] [2024-11-13 14:28:09,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:09,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:28:09,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:28:09,343 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:28:09,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 14:28:09,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:09,811 INFO L255 TraceCheckSpWp]: Trace formula consists of 1228 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 14:28:09,818 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:28:10,077 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-13 14:28:10,077 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:28:10,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567258034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:10,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:28:10,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2024-11-13 14:28:10,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888689723] [2024-11-13 14:28:10,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:10,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:28:10,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:10,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:28:10,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:28:10,080 INFO L87 Difference]: Start difference. First operand 1459 states and 2290 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 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) [2024-11-13 14:28:11,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:11,260 INFO L93 Difference]: Finished difference Result 2851 states and 4514 transitions. [2024-11-13 14:28:11,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:28:11,260 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 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 125 [2024-11-13 14:28:11,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:11,271 INFO L225 Difference]: With dead ends: 2851 [2024-11-13 14:28:11,271 INFO L226 Difference]: Without dead ends: 1469 [2024-11-13 14:28:11,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:28:11,279 INFO L432 NwaCegarLoop]: 841 mSDtfsCounter, 817 mSDsluCounter, 2600 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 3441 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:11,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [823 Valid, 3441 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 14:28:11,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2024-11-13 14:28:11,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1462. [2024-11-13 14:28:11,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1160 states have (on average 1.5543103448275861) internal successors, (1803), 1185 states have internal predecessors, (1803), 221 states have call successors, (221), 82 states have call predecessors, (221), 80 states have return successors, (269), 218 states have call predecessors, (269), 217 states have call successors, (269) [2024-11-13 14:28:11,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 2293 transitions. [2024-11-13 14:28:11,807 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 2293 transitions. Word has length 125 [2024-11-13 14:28:11,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:11,807 INFO L471 AbstractCegarLoop]: Abstraction has 1462 states and 2293 transitions. [2024-11-13 14:28:11,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 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) [2024-11-13 14:28:11,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 2293 transitions. [2024-11-13 14:28:11,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-13 14:28:11,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:11,812 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1] [2024-11-13 14:28:11,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 14:28:12,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:28:12,017 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:12,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:12,017 INFO L85 PathProgramCache]: Analyzing trace with hash -477530266, now seen corresponding path program 1 times [2024-11-13 14:28:12,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:12,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502104243] [2024-11-13 14:28:12,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:12,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:12,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:12,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:28:12,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:12,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:12,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:12,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:28:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:12,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:28:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:12,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:12,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:12,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-13 14:28:12,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:12,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 14:28:12,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:12,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:12,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:12,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:12,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:12,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:28:12,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:12,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-13 14:28:12,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:12,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 14:28:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:13,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:13,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:13,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-13 14:28:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:13,017 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-13 14:28:13,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:13,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502104243] [2024-11-13 14:28:13,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502104243] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:28:13,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589319097] [2024-11-13 14:28:13,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:13,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:28:13,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:28:13,021 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:28:13,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 14:28:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:13,518 INFO L255 TraceCheckSpWp]: Trace formula consists of 1224 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 14:28:13,525 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:28:13,796 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 14:28:13,797 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:28:13,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589319097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:13,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:28:13,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-13 14:28:13,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849798144] [2024-11-13 14:28:13,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:13,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:28:13,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:13,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:28:13,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:28:13,799 INFO L87 Difference]: Start difference. First operand 1462 states and 2293 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 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) [2024-11-13 14:28:14,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:14,745 INFO L93 Difference]: Finished difference Result 2865 states and 4555 transitions. [2024-11-13 14:28:14,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:28:14,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 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 127 [2024-11-13 14:28:14,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:14,758 INFO L225 Difference]: With dead ends: 2865 [2024-11-13 14:28:14,759 INFO L226 Difference]: Without dead ends: 1480 [2024-11-13 14:28:14,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-11-13 14:28:14,767 INFO L432 NwaCegarLoop]: 857 mSDtfsCounter, 763 mSDsluCounter, 2281 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 3138 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:14,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [763 Valid, 3138 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:28:14,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2024-11-13 14:28:15,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1472. [2024-11-13 14:28:15,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1166 states have (on average 1.5514579759862779) internal successors, (1809), 1194 states have internal predecessors, (1809), 223 states have call successors, (223), 83 states have call predecessors, (223), 82 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2024-11-13 14:28:15,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 2311 transitions. [2024-11-13 14:28:15,286 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 2311 transitions. Word has length 127 [2024-11-13 14:28:15,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:15,287 INFO L471 AbstractCegarLoop]: Abstraction has 1472 states and 2311 transitions. [2024-11-13 14:28:15,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 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) [2024-11-13 14:28:15,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 2311 transitions. [2024-11-13 14:28:15,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-13 14:28:15,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:15,290 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:15,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-13 14:28:15,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:28:15,495 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:15,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:15,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1848810206, now seen corresponding path program 1 times [2024-11-13 14:28:15,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:15,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209441690] [2024-11-13 14:28:15,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:15,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:15,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:28:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:16,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:16,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:16,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:28:16,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:16,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:28:16,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:16,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:16,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-13 14:28:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:16,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 14:28:16,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:16,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:16,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:16,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:28:16,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:16,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-13 14:28:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:16,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:28:16,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:16,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-13 14:28:16,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:16,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:16,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:16,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-13 14:28:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:16,194 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-13 14:28:16,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:16,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209441690] [2024-11-13 14:28:16,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209441690] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:28:16,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213756410] [2024-11-13 14:28:16,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:16,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:28:16,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:28:16,198 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:28:16,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 14:28:16,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:16,639 INFO L255 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 14:28:16,643 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:28:16,671 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 14:28:16,672 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:28:16,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213756410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:16,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:28:16,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2024-11-13 14:28:16,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557024948] [2024-11-13 14:28:16,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:16,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:28:16,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:16,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:28:16,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:28:16,676 INFO L87 Difference]: Start difference. First operand 1472 states and 2311 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2024-11-13 14:28:17,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:17,560 INFO L93 Difference]: Finished difference Result 3554 states and 5668 transitions. [2024-11-13 14:28:17,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:28:17,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 132 [2024-11-13 14:28:17,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:17,585 INFO L225 Difference]: With dead ends: 3554 [2024-11-13 14:28:17,589 INFO L226 Difference]: Without dead ends: 2161 [2024-11-13 14:28:17,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:28:17,601 INFO L432 NwaCegarLoop]: 1580 mSDtfsCounter, 771 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 2405 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:17,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 2405 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:28:17,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2161 states. [2024-11-13 14:28:18,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2161 to 1472. [2024-11-13 14:28:18,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1166 states have (on average 1.5506003430531732) internal successors, (1808), 1194 states have internal predecessors, (1808), 223 states have call successors, (223), 83 states have call predecessors, (223), 82 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2024-11-13 14:28:18,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 2310 transitions. [2024-11-13 14:28:18,227 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 2310 transitions. Word has length 132 [2024-11-13 14:28:18,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:18,228 INFO L471 AbstractCegarLoop]: Abstraction has 1472 states and 2310 transitions. [2024-11-13 14:28:18,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2024-11-13 14:28:18,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 2310 transitions. [2024-11-13 14:28:18,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-13 14:28:18,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:18,231 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:18,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-13 14:28:18,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-13 14:28:18,436 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:18,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:18,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1744557216, now seen corresponding path program 1 times [2024-11-13 14:28:18,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:18,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110445485] [2024-11-13 14:28:18,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:18,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:18,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:18,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:28:18,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:19,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:19,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:19,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:28:19,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:19,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:28:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:19,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:19,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:19,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-13 14:28:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:19,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 14:28:19,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:19,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:19,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:19,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:19,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:28:19,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:19,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-13 14:28:19,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:19,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:28:19,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:19,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-13 14:28:19,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:19,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:19,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:19,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-13 14:28:19,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:19,199 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-13 14:28:19,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:19,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110445485] [2024-11-13 14:28:19,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110445485] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:28:19,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124888324] [2024-11-13 14:28:19,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:19,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:28:19,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:28:19,202 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:28:19,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 14:28:19,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:19,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 14:28:19,636 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:28:19,821 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 14:28:19,821 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:28:19,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124888324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:19,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:28:19,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-13 14:28:19,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148555812] [2024-11-13 14:28:19,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:19,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:28:19,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:19,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:28:19,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:28:19,824 INFO L87 Difference]: Start difference. First operand 1472 states and 2310 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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) [2024-11-13 14:28:20,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:20,287 INFO L93 Difference]: Finished difference Result 2863 states and 4520 transitions. [2024-11-13 14:28:20,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:28:20,288 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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 132 [2024-11-13 14:28:20,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:20,296 INFO L225 Difference]: With dead ends: 2863 [2024-11-13 14:28:20,296 INFO L226 Difference]: Without dead ends: 1472 [2024-11-13 14:28:20,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:28:20,303 INFO L432 NwaCegarLoop]: 917 mSDtfsCounter, 345 mSDsluCounter, 2448 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 3365 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:20,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 3365 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:28:20,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2024-11-13 14:28:20,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1472. [2024-11-13 14:28:20,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1166 states have (on average 1.5471698113207548) internal successors, (1804), 1194 states have internal predecessors, (1804), 223 states have call successors, (223), 83 states have call predecessors, (223), 82 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2024-11-13 14:28:20,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 2306 transitions. [2024-11-13 14:28:20,629 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 2306 transitions. Word has length 132 [2024-11-13 14:28:20,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:20,629 INFO L471 AbstractCegarLoop]: Abstraction has 1472 states and 2306 transitions. [2024-11-13 14:28:20,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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) [2024-11-13 14:28:20,629 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 2306 transitions. [2024-11-13 14:28:20,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-13 14:28:20,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:20,632 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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] [2024-11-13 14:28:20,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-13 14:28:20,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-13 14:28:20,833 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:20,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:20,833 INFO L85 PathProgramCache]: Analyzing trace with hash -564908816, now seen corresponding path program 1 times [2024-11-13 14:28:20,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:20,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789002661] [2024-11-13 14:28:20,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:20,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:20,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:21,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:28:21,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:21,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:21,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:21,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:28:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:21,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:28:21,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:21,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:21,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:21,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-13 14:28:21,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:21,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-13 14:28:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:21,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:28:21,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:21,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-13 14:28:21,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:21,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-13 14:28:21,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:21,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-13 14:28:21,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:21,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-13 14:28:21,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:21,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 14:28:21,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:21,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-13 14:28:21,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:21,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:21,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-13 14:28:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:21,558 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-13 14:28:21,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:21,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789002661] [2024-11-13 14:28:21,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789002661] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:28:21,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185248044] [2024-11-13 14:28:21,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:21,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:28:21,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:28:21,561 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:28:21,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 14:28:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:22,020 INFO L255 TraceCheckSpWp]: Trace formula consists of 1332 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 14:28:22,022 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:28:22,060 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-13 14:28:22,060 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:28:22,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185248044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:22,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:28:22,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2024-11-13 14:28:22,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056223862] [2024-11-13 14:28:22,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:22,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:28:22,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:22,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:28:22,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:28:22,062 INFO L87 Difference]: Start difference. First operand 1472 states and 2306 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) [2024-11-13 14:28:22,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:22,614 INFO L93 Difference]: Finished difference Result 2956 states and 4700 transitions. [2024-11-13 14:28:22,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:28:22,614 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 [2024-11-13 14:28:22,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:22,627 INFO L225 Difference]: With dead ends: 2956 [2024-11-13 14:28:22,627 INFO L226 Difference]: Without dead ends: 1562 [2024-11-13 14:28:22,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:28:22,636 INFO L432 NwaCegarLoop]: 772 mSDtfsCounter, 144 mSDsluCounter, 1521 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 2293 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:22,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 2293 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:28:22,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1562 states. [2024-11-13 14:28:23,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1562 to 1550. [2024-11-13 14:28:23,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1550 states, 1242 states have (on average 1.570048309178744) internal successors, (1950), 1270 states have internal predecessors, (1950), 223 states have call successors, (223), 85 states have call predecessors, (223), 84 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2024-11-13 14:28:23,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 2452 transitions. [2024-11-13 14:28:23,207 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 2452 transitions. Word has length 155 [2024-11-13 14:28:23,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:23,208 INFO L471 AbstractCegarLoop]: Abstraction has 1550 states and 2452 transitions. [2024-11-13 14:28:23,208 INFO L472 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) [2024-11-13 14:28:23,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 2452 transitions. [2024-11-13 14:28:23,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-13 14:28:23,211 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:23,211 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 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] [2024-11-13 14:28:23,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-13 14:28:23,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-13 14:28:23,412 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:23,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:23,412 INFO L85 PathProgramCache]: Analyzing trace with hash -314196282, now seen corresponding path program 1 times [2024-11-13 14:28:23,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:23,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600301115] [2024-11-13 14:28:23,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:23,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:23,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:23,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:28:23,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:23,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:23,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:28:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:23,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:28:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:24,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:24,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-13 14:28:24,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:24,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-13 14:28:24,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:24,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:28:24,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:24,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 14:28:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:24,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-13 14:28:24,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:24,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 14:28:24,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:24,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-13 14:28:24,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:24,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-13 14:28:24,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:24,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-13 14:28:24,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:24,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:24,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:24,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-13 14:28:24,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:24,107 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-13 14:28:24,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:24,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600301115] [2024-11-13 14:28:24,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600301115] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:28:24,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021223561] [2024-11-13 14:28:24,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:24,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:28:24,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:28:24,111 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:28:24,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-13 14:28:24,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:24,584 INFO L255 TraceCheckSpWp]: Trace formula consists of 1337 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 14:28:24,587 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:28:24,630 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-13 14:28:24,630 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:28:24,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021223561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:24,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:28:24,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2024-11-13 14:28:24,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881729176] [2024-11-13 14:28:24,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:24,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:28:24,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:24,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:28:24,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:28:24,632 INFO L87 Difference]: Start difference. First operand 1550 states and 2452 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 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) [2024-11-13 14:28:25,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:25,196 INFO L93 Difference]: Finished difference Result 3118 states and 4994 transitions. [2024-11-13 14:28:25,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:28:25,197 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 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 160 [2024-11-13 14:28:25,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:25,210 INFO L225 Difference]: With dead ends: 3118 [2024-11-13 14:28:25,210 INFO L226 Difference]: Without dead ends: 1646 [2024-11-13 14:28:25,218 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:28:25,218 INFO L432 NwaCegarLoop]: 771 mSDtfsCounter, 142 mSDsluCounter, 1519 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 2290 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:25,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 2290 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:28:25,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2024-11-13 14:28:25,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1628. [2024-11-13 14:28:25,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1628 states, 1318 states have (on average 1.590288315629742) internal successors, (2096), 1346 states have internal predecessors, (2096), 223 states have call successors, (223), 87 states have call predecessors, (223), 86 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2024-11-13 14:28:25,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 2598 transitions. [2024-11-13 14:28:25,719 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 2598 transitions. Word has length 160 [2024-11-13 14:28:25,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:25,720 INFO L471 AbstractCegarLoop]: Abstraction has 1628 states and 2598 transitions. [2024-11-13 14:28:25,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 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) [2024-11-13 14:28:25,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 2598 transitions. [2024-11-13 14:28:25,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-13 14:28:25,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:25,722 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 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] [2024-11-13 14:28:25,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-13 14:28:25,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-13 14:28:25,923 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:25,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:25,923 INFO L85 PathProgramCache]: Analyzing trace with hash -852709130, now seen corresponding path program 1 times [2024-11-13 14:28:25,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:25,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862431989] [2024-11-13 14:28:25,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:25,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:26,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:28:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:26,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:26,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:26,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:28:26,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:26,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:28:26,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:26,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:26,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:26,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-13 14:28:26,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:26,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-13 14:28:26,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:26,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:28:26,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:26,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 14:28:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:26,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-13 14:28:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:26,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-13 14:28:26,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:26,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-13 14:28:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:26,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-13 14:28:26,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:26,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-13 14:28:26,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:26,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:26,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-13 14:28:26,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:26,562 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-13 14:28:26,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:26,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862431989] [2024-11-13 14:28:26,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862431989] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:28:26,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219865403] [2024-11-13 14:28:26,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:26,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:28:26,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:28:26,565 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:28:26,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-13 14:28:26,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:26,993 INFO L255 TraceCheckSpWp]: Trace formula consists of 1341 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 14:28:26,995 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:28:27,051 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 14:28:27,051 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:28:27,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219865403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:27,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:28:27,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2024-11-13 14:28:27,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993326423] [2024-11-13 14:28:27,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:27,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:28:27,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:27,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:28:27,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:28:27,053 INFO L87 Difference]: Start difference. First operand 1628 states and 2598 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 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) [2024-11-13 14:28:27,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:27,632 INFO L93 Difference]: Finished difference Result 3280 states and 5288 transitions. [2024-11-13 14:28:27,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:28:27,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 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 164 [2024-11-13 14:28:27,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:27,644 INFO L225 Difference]: With dead ends: 3280 [2024-11-13 14:28:27,644 INFO L226 Difference]: Without dead ends: 1730 [2024-11-13 14:28:27,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:28:27,650 INFO L432 NwaCegarLoop]: 770 mSDtfsCounter, 140 mSDsluCounter, 1517 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 2287 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:27,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 2287 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:28:27,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2024-11-13 14:28:28,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1706. [2024-11-13 14:28:28,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1706 states, 1394 states have (on average 1.6083213773314204) internal successors, (2242), 1422 states have internal predecessors, (2242), 223 states have call successors, (223), 89 states have call predecessors, (223), 88 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2024-11-13 14:28:28,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 2744 transitions. [2024-11-13 14:28:28,137 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 2744 transitions. Word has length 164 [2024-11-13 14:28:28,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:28,138 INFO L471 AbstractCegarLoop]: Abstraction has 1706 states and 2744 transitions. [2024-11-13 14:28:28,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 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) [2024-11-13 14:28:28,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 2744 transitions. [2024-11-13 14:28:28,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-13 14:28:28,142 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:28,143 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:28,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-13 14:28:28,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-13 14:28:28,344 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:28,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:28,344 INFO L85 PathProgramCache]: Analyzing trace with hash -746233648, now seen corresponding path program 1 times [2024-11-13 14:28:28,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:28,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185637511] [2024-11-13 14:28:28,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:28,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:28,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:28,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:28:28,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:28,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:28,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:28,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:28:28,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:28,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:28:28,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:28,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:28,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:28,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-13 14:28:29,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:29,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-13 14:28:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:29,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:28:29,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:29,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 14:28:29,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:29,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-13 14:28:29,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:29,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-13 14:28:29,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:29,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-13 14:28:29,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:29,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 14:28:29,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:29,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-13 14:28:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:29,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:29,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:29,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-13 14:28:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:29,056 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-13 14:28:29,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:29,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185637511] [2024-11-13 14:28:29,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185637511] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:28:29,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925009861] [2024-11-13 14:28:29,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:29,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:28:29,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:28:29,060 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:28:29,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-13 14:28:29,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:29,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 1344 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 14:28:29,570 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:28:29,626 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-13 14:28:29,626 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:28:29,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925009861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:29,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:28:29,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2024-11-13 14:28:29,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348994810] [2024-11-13 14:28:29,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:29,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:28:29,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:29,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:28:29,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:28:29,630 INFO L87 Difference]: Start difference. First operand 1706 states and 2744 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 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) [2024-11-13 14:28:30,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:30,207 INFO L93 Difference]: Finished difference Result 3442 states and 5582 transitions. [2024-11-13 14:28:30,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:28:30,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 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 167 [2024-11-13 14:28:30,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:30,217 INFO L225 Difference]: With dead ends: 3442 [2024-11-13 14:28:30,217 INFO L226 Difference]: Without dead ends: 1814 [2024-11-13 14:28:30,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:28:30,224 INFO L432 NwaCegarLoop]: 767 mSDtfsCounter, 138 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 2277 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:30,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 2277 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:28:30,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1814 states. [2024-11-13 14:28:30,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1814 to 1784. [2024-11-13 14:28:30,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1470 states have (on average 1.6244897959183673) internal successors, (2388), 1498 states have internal predecessors, (2388), 223 states have call successors, (223), 91 states have call predecessors, (223), 90 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2024-11-13 14:28:30,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2890 transitions. [2024-11-13 14:28:30,645 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2890 transitions. Word has length 167 [2024-11-13 14:28:30,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:30,646 INFO L471 AbstractCegarLoop]: Abstraction has 1784 states and 2890 transitions. [2024-11-13 14:28:30,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 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) [2024-11-13 14:28:30,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2890 transitions. [2024-11-13 14:28:30,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-13 14:28:30,652 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:30,653 INFO L215 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, 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] [2024-11-13 14:28:30,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-13 14:28:30,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:28:30,853 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:30,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:30,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1663162494, now seen corresponding path program 1 times [2024-11-13 14:28:30,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:30,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541175942] [2024-11-13 14:28:30,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:30,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:31,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:28:31,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:31,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:31,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:28:31,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:31,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:28:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:31,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:31,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:31,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-13 14:28:31,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:31,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-13 14:28:31,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:31,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:28:31,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:31,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 14:28:31,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:31,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-13 14:28:31,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:31,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-13 14:28:31,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:31,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-13 14:28:31,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:31,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-13 14:28:31,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:31,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-13 14:28:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:31,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:31,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:31,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-13 14:28:31,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:31,590 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-13 14:28:31,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:31,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541175942] [2024-11-13 14:28:31,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541175942] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:28:31,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142940615] [2024-11-13 14:28:31,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:31,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:28:31,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:28:31,593 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:28:31,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-13 14:28:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:32,049 INFO L255 TraceCheckSpWp]: Trace formula consists of 1340 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-13 14:28:32,056 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:28:32,411 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-13 14:28:32,412 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:28:32,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142940615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:32,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:28:32,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12] total 17 [2024-11-13 14:28:32,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989847461] [2024-11-13 14:28:32,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:32,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:28:32,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:32,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:28:32,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:28:32,414 INFO L87 Difference]: Start difference. First operand 1784 states and 2890 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 7 states have internal predecessors, (108), 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) [2024-11-13 14:28:36,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:36,573 INFO L93 Difference]: Finished difference Result 5489 states and 9061 transitions. [2024-11-13 14:28:36,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:28:36,574 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 7 states have internal predecessors, (108), 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 169 [2024-11-13 14:28:36,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:36,599 INFO L225 Difference]: With dead ends: 5489 [2024-11-13 14:28:36,599 INFO L226 Difference]: Without dead ends: 3411 [2024-11-13 14:28:36,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=102, Invalid=498, Unknown=0, NotChecked=0, Total=600 [2024-11-13 14:28:36,608 INFO L432 NwaCegarLoop]: 372 mSDtfsCounter, 1896 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 3670 mSolverCounterSat, 460 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1995 SdHoareTripleChecker+Valid, 2315 SdHoareTripleChecker+Invalid, 4130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 460 IncrementalHoareTripleChecker+Valid, 3670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:36,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1995 Valid, 2315 Invalid, 4130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [460 Valid, 3670 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-13 14:28:36,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3411 states. [2024-11-13 14:28:37,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3411 to 3343. [2024-11-13 14:28:37,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3343 states, 2696 states have (on average 1.6413204747774481) internal successors, (4425), 2778 states have internal predecessors, (4425), 463 states have call successors, (463), 163 states have call predecessors, (463), 183 states have return successors, (607), 459 states have call predecessors, (607), 459 states have call successors, (607) [2024-11-13 14:28:37,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3343 states to 3343 states and 5495 transitions. [2024-11-13 14:28:37,398 INFO L78 Accepts]: Start accepts. Automaton has 3343 states and 5495 transitions. Word has length 169 [2024-11-13 14:28:37,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:37,399 INFO L471 AbstractCegarLoop]: Abstraction has 3343 states and 5495 transitions. [2024-11-13 14:28:37,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 7 states have internal predecessors, (108), 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) [2024-11-13 14:28:37,400 INFO L276 IsEmpty]: Start isEmpty. Operand 3343 states and 5495 transitions. [2024-11-13 14:28:37,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-13 14:28:37,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:37,410 INFO L215 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, 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] [2024-11-13 14:28:37,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-13 14:28:37,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:28:37,611 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:37,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:37,612 INFO L85 PathProgramCache]: Analyzing trace with hash 896563822, now seen corresponding path program 1 times [2024-11-13 14:28:37,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:37,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665359865] [2024-11-13 14:28:37,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:37,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:37,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:28:37,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:38,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:38,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:28:38,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:38,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:28:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:38,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:38,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:38,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-13 14:28:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:38,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-13 14:28:38,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:38,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:28:38,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:38,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 14:28:38,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:38,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-13 14:28:38,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:38,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-13 14:28:38,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:38,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-13 14:28:38,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:38,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-13 14:28:38,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:38,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-13 14:28:38,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:38,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:38,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:38,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-13 14:28:38,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:38,145 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-13 14:28:38,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:38,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665359865] [2024-11-13 14:28:38,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665359865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:38,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:28:38,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 14:28:38,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670266223] [2024-11-13 14:28:38,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:38,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:28:38,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:38,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:28:38,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:28:38,147 INFO L87 Difference]: Start difference. First operand 3343 states and 5495 transitions. Second operand has 9 states, 8 states have (on average 12.75) internal successors, (102), 6 states have internal predecessors, (102), 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) [2024-11-13 14:28:45,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:45,066 INFO L93 Difference]: Finished difference Result 7561 states and 12599 transitions. [2024-11-13 14:28:45,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 14:28:45,067 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.75) internal successors, (102), 6 states have internal predecessors, (102), 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 169 [2024-11-13 14:28:45,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:45,101 INFO L225 Difference]: With dead ends: 7561 [2024-11-13 14:28:45,102 INFO L226 Difference]: Without dead ends: 4232 [2024-11-13 14:28:45,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:28:45,118 INFO L432 NwaCegarLoop]: 436 mSDtfsCounter, 1356 mSDsluCounter, 2259 mSDsCounter, 0 mSdLazyCounter, 3332 mSolverCounterSat, 335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1462 SdHoareTripleChecker+Valid, 2695 SdHoareTripleChecker+Invalid, 3667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 3332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:45,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1462 Valid, 2695 Invalid, 3667 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [335 Valid, 3332 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-13 14:28:45,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4232 states. [2024-11-13 14:28:46,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4232 to 3357. [2024-11-13 14:28:46,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3357 states, 2710 states have (on average 1.629520295202952) internal successors, (4416), 2792 states have internal predecessors, (4416), 463 states have call successors, (463), 163 states have call predecessors, (463), 183 states have return successors, (607), 459 states have call predecessors, (607), 459 states have call successors, (607) [2024-11-13 14:28:46,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3357 states to 3357 states and 5486 transitions. [2024-11-13 14:28:46,286 INFO L78 Accepts]: Start accepts. Automaton has 3357 states and 5486 transitions. Word has length 169 [2024-11-13 14:28:46,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:46,287 INFO L471 AbstractCegarLoop]: Abstraction has 3357 states and 5486 transitions. [2024-11-13 14:28:46,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.75) internal successors, (102), 6 states have internal predecessors, (102), 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) [2024-11-13 14:28:46,287 INFO L276 IsEmpty]: Start isEmpty. Operand 3357 states and 5486 transitions. [2024-11-13 14:28:46,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-13 14:28:46,294 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:46,294 INFO L215 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, 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] [2024-11-13 14:28:46,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-13 14:28:46,294 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:46,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:46,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1700949498, now seen corresponding path program 1 times [2024-11-13 14:28:46,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:46,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665215545] [2024-11-13 14:28:46,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:46,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:46,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:46,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:28:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:46,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:46,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:28:46,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:46,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:28:46,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:46,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:46,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:46,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-13 14:28:46,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:46,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-13 14:28:46,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:46,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 14:28:46,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:46,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 14:28:46,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:46,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-13 14:28:46,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:46,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-13 14:28:46,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:46,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-13 14:28:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:46,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-13 14:28:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:46,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-13 14:28:46,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:46,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:46,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:46,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-13 14:28:46,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:46,683 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-13 14:28:46,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:46,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665215545] [2024-11-13 14:28:46,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665215545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:28:46,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:28:46,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 14:28:46,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801509798] [2024-11-13 14:28:46,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:28:46,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:28:46,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:46,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:28:46,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:28:46,686 INFO L87 Difference]: Start difference. First operand 3357 states and 5486 transitions. Second operand has 9 states, 8 states have (on average 13.5) internal successors, (108), 6 states have internal predecessors, (108), 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) [2024-11-13 14:28:53,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:28:53,523 INFO L93 Difference]: Finished difference Result 7239 states and 12121 transitions. [2024-11-13 14:28:53,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 14:28:53,524 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.5) internal successors, (108), 6 states have internal predecessors, (108), 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 175 [2024-11-13 14:28:53,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:28:53,551 INFO L225 Difference]: With dead ends: 7239 [2024-11-13 14:28:53,551 INFO L226 Difference]: Without dead ends: 3810 [2024-11-13 14:28:53,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-13 14:28:53,567 INFO L432 NwaCegarLoop]: 466 mSDtfsCounter, 1358 mSDsluCounter, 2407 mSDsCounter, 0 mSdLazyCounter, 3250 mSolverCounterSat, 327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 2873 SdHoareTripleChecker+Invalid, 3577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 3250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:28:53,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1464 Valid, 2873 Invalid, 3577 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [327 Valid, 3250 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-13 14:28:53,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3810 states. [2024-11-13 14:28:54,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3810 to 2997. [2024-11-13 14:28:54,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2997 states, 2450 states have (on average 1.6693877551020408) internal successors, (4090), 2519 states have internal predecessors, (4090), 383 states have call successors, (383), 151 states have call predecessors, (383), 163 states have return successors, (477), 374 states have call predecessors, (477), 379 states have call successors, (477) [2024-11-13 14:28:54,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2997 states to 2997 states and 4950 transitions. [2024-11-13 14:28:54,370 INFO L78 Accepts]: Start accepts. Automaton has 2997 states and 4950 transitions. Word has length 175 [2024-11-13 14:28:54,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:28:54,370 INFO L471 AbstractCegarLoop]: Abstraction has 2997 states and 4950 transitions. [2024-11-13 14:28:54,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.5) internal successors, (108), 6 states have internal predecessors, (108), 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) [2024-11-13 14:28:54,370 INFO L276 IsEmpty]: Start isEmpty. Operand 2997 states and 4950 transitions. [2024-11-13 14:28:54,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2024-11-13 14:28:54,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:28:54,386 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 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, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:28:54,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-13 14:28:54,387 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:28:54,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:28:54,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1736136732, now seen corresponding path program 1 times [2024-11-13 14:28:54,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:28:54,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185615177] [2024-11-13 14:28:54,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:54,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:28:54,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:54,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:28:55,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:55,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:28:55,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 14:28:55,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:55,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:55,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:28:55,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-13 14:28:55,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:55,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:55,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:28:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:28:55,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:28:55,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 14:28:55,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-13 14:28:55,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:55,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:55,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:28:55,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-13 14:28:55,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:55,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:28:55,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:28:55,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:28:55,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 14:28:55,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:55,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-11-13 14:28:55,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:55,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:28:55,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:55,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:28:55,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:55,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:28:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:28:55,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:28:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-13 14:28:55,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:55,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2024-11-13 14:28:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:55,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:28:55,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-11-13 14:28:55,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:55,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-11-13 14:28:55,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2024-11-13 14:28:55,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2024-11-13 14:28:55,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2024-11-13 14:28:55,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2024-11-13 14:28:55,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2024-11-13 14:28:55,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2024-11-13 14:28:55,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2024-11-13 14:28:55,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2024-11-13 14:28:55,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:28:55,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2024-11-13 14:28:55,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:55,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1060 backedges. 41 proven. 132 refuted. 0 times theorem prover too weak. 887 trivial. 0 not checked. [2024-11-13 14:28:55,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:28:55,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185615177] [2024-11-13 14:28:55,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185615177] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:28:55,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582376115] [2024-11-13 14:28:55,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:28:55,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:28:55,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:28:55,989 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:28:55,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-13 14:28:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:28:56,863 INFO L255 TraceCheckSpWp]: Trace formula consists of 3188 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 14:28:56,873 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:28:57,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1060 backedges. 342 proven. 50 refuted. 0 times theorem prover too weak. 668 trivial. 0 not checked. [2024-11-13 14:28:57,320 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:28:58,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1060 backedges. 57 proven. 93 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2024-11-13 14:28:58,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582376115] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:28:58,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:28:58,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 11, 14] total 34 [2024-11-13 14:28:58,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337624510] [2024-11-13 14:28:58,781 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:28:58,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-13 14:28:58,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:28:58,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-13 14:28:58,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=997, Unknown=0, NotChecked=0, Total=1122 [2024-11-13 14:28:58,785 INFO L87 Difference]: Start difference. First operand 2997 states and 4950 transitions. Second operand has 34 states, 32 states have (on average 11.625) internal successors, (372), 25 states have internal predecessors, (372), 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) [2024-11-13 14:33:14,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:33:14,703 INFO L93 Difference]: Finished difference Result 31352 states and 57249 transitions. [2024-11-13 14:33:14,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 488 states. [2024-11-13 14:33:14,704 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 32 states have (on average 11.625) internal successors, (372), 25 states have internal predecessors, (372), 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 463 [2024-11-13 14:33:14,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:33:14,929 INFO L225 Difference]: With dead ends: 31352 [2024-11-13 14:33:14,930 INFO L226 Difference]: Without dead ends: 28349 [2024-11-13 14:33:15,074 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1682 GetRequests, 1162 SyntacticMatches, 4 SemanticMatches, 516 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123351 ImplicationChecksByTransitivity, 117.1s TimeCoverageRelationStatistics Valid=21882, Invalid=245924, Unknown=0, NotChecked=0, Total=267806 [2024-11-13 14:33:15,074 INFO L432 NwaCegarLoop]: 3012 mSDtfsCounter, 34915 mSDsluCounter, 33056 mSDsCounter, 0 mSdLazyCounter, 102947 mSolverCounterSat, 16107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 108.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34915 SdHoareTripleChecker+Valid, 36068 SdHoareTripleChecker+Invalid, 119054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.6s SdHoareTripleChecker+Time, 16107 IncrementalHoareTripleChecker+Valid, 102947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 120.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:33:15,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34915 Valid, 36068 Invalid, 119054 Unknown, 0 Unchecked, 1.6s Time], IncrementalHoareTripleChecker [16107 Valid, 102947 Invalid, 0 Unknown, 0 Unchecked, 120.3s Time] [2024-11-13 14:33:15,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28349 states. [2024-11-13 14:33:21,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28349 to 15601. [2024-11-13 14:33:21,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15601 states, 12715 states have (on average 1.6410538733779) internal successors, (20866), 13073 states have internal predecessors, (20866), 1906 states have call successors, (1906), 844 states have call predecessors, (1906), 979 states have return successors, (2679), 1947 states have call predecessors, (2679), 1888 states have call successors, (2679) [2024-11-13 14:33:21,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15601 states to 15601 states and 25451 transitions. [2024-11-13 14:33:21,529 INFO L78 Accepts]: Start accepts. Automaton has 15601 states and 25451 transitions. Word has length 463 [2024-11-13 14:33:21,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:33:21,530 INFO L471 AbstractCegarLoop]: Abstraction has 15601 states and 25451 transitions. [2024-11-13 14:33:21,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 32 states have (on average 11.625) internal successors, (372), 25 states have internal predecessors, (372), 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) [2024-11-13 14:33:21,530 INFO L276 IsEmpty]: Start isEmpty. Operand 15601 states and 25451 transitions. [2024-11-13 14:33:21,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2024-11-13 14:33:21,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:33:21,613 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 12, 12, 12, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 14:33:21,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-13 14:33:21,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-13 14:33:21,814 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:33:21,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:33:21,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1857921597, now seen corresponding path program 1 times [2024-11-13 14:33:21,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:33:21,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782250341] [2024-11-13 14:33:21,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:33:21,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:33:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:22,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:33:22,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:22,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:22,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:22,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:33:22,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 14:33:23,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:23,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:23,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:33:23,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:23,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 14:33:23,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-13 14:33:23,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-13 14:33:23,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:33:23,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-13 14:33:23,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-13 14:33:23,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 14:33:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-13 14:33:23,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:23,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-13 14:33:23,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:23,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:33:23,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:33:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:23,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:33:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:33:23,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:33:23,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-13 14:33:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:23,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-13 14:33:23,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:33:23,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:23,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 14:33:23,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:33:23,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-13 14:33:23,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 14:33:23,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:33:23,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 14:33:23,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 14:33:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-13 14:33:23,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:23,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2024-11-13 14:33:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:33:23,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2024-11-13 14:33:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2024-11-13 14:33:23,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2024-11-13 14:33:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 461 [2024-11-13 14:33:23,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2024-11-13 14:33:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2024-11-13 14:33:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2024-11-13 14:33:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2024-11-13 14:33:23,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 515 [2024-11-13 14:33:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2024-11-13 14:33:23,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2024-11-13 14:33:23,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,611 INFO L134 CoverageAnalysis]: Checked inductivity of 1618 backedges. 90 proven. 159 refuted. 0 times theorem prover too weak. 1369 trivial. 0 not checked. [2024-11-13 14:33:23,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:33:23,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782250341] [2024-11-13 14:33:23,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782250341] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:33:23,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150476904] [2024-11-13 14:33:23,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:33:23,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:33:23,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:33:23,618 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:33:23,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-13 14:33:24,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:24,560 INFO L255 TraceCheckSpWp]: Trace formula consists of 3432 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 14:33:24,568 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:33:24,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1618 backedges. 835 proven. 0 refuted. 0 times theorem prover too weak. 783 trivial. 0 not checked. [2024-11-13 14:33:24,664 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:33:24,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150476904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:33:24,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:33:24,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 19 [2024-11-13 14:33:24,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109837693] [2024-11-13 14:33:24,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:33:24,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:33:24,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:33:24,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:33:24,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2024-11-13 14:33:24,666 INFO L87 Difference]: Start difference. First operand 15601 states and 25451 transitions. Second operand has 6 states, 6 states have (on average 37.333333333333336) internal successors, (224), 5 states have internal predecessors, (224), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (41), 3 states have call predecessors, (41), 2 states have call successors, (41) [2024-11-13 14:33:30,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:33:30,731 INFO L93 Difference]: Finished difference Result 31293 states and 51291 transitions. [2024-11-13 14:33:30,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:33:30,732 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 37.333333333333336) internal successors, (224), 5 states have internal predecessors, (224), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (41), 3 states have call predecessors, (41), 2 states have call successors, (41) Word has length 550 [2024-11-13 14:33:30,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:33:30,839 INFO L225 Difference]: With dead ends: 31293 [2024-11-13 14:33:30,839 INFO L226 Difference]: Without dead ends: 15791 [2024-11-13 14:33:30,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 679 GetRequests, 662 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2024-11-13 14:33:30,917 INFO L432 NwaCegarLoop]: 817 mSDtfsCounter, 0 mSDsluCounter, 3259 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4076 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:33:30,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4076 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:33:30,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15791 states. [2024-11-13 14:33:36,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15791 to 15743. [2024-11-13 14:33:36,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15743 states, 12819 states have (on average 1.6358530306576176) internal successors, (20970), 13193 states have internal predecessors, (20970), 1906 states have call successors, (1906), 844 states have call predecessors, (1906), 1017 states have return successors, (2757), 1969 states have call predecessors, (2757), 1888 states have call successors, (2757) [2024-11-13 14:33:36,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15743 states to 15743 states and 25633 transitions. [2024-11-13 14:33:36,589 INFO L78 Accepts]: Start accepts. Automaton has 15743 states and 25633 transitions. Word has length 550 [2024-11-13 14:33:36,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:33:36,589 INFO L471 AbstractCegarLoop]: Abstraction has 15743 states and 25633 transitions. [2024-11-13 14:33:36,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.333333333333336) internal successors, (224), 5 states have internal predecessors, (224), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (41), 3 states have call predecessors, (41), 2 states have call successors, (41) [2024-11-13 14:33:36,590 INFO L276 IsEmpty]: Start isEmpty. Operand 15743 states and 25633 transitions. [2024-11-13 14:33:36,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2024-11-13 14:33:36,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:33:36,677 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 10, 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, 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, 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] [2024-11-13 14:33:36,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-13 14:33:36,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-13 14:33:36,878 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:33:36,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:33:36,879 INFO L85 PathProgramCache]: Analyzing trace with hash 600879744, now seen corresponding path program 1 times [2024-11-13 14:33:36,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:33:36,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880428376] [2024-11-13 14:33:36,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:33:36,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:33:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:37,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:33:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:37,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:37,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:37,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:33:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 14:33:38,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:38,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:38,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:33:38,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:38,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 14:33:38,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-13 14:33:38,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-13 14:33:38,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:33:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-13 14:33:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-13 14:33:38,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 14:33:38,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-13 14:33:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-13 14:33:38,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:38,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:38,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:33:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:38,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:33:38,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:38,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:33:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 14:33:38,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:33:38,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-13 14:33:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:38,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-11-13 14:33:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:38,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:38,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:33:38,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:38,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:33:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:38,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:38,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:33:38,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 14:33:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-13 14:33:38,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-11-13 14:33:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:33:38,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2024-11-13 14:33:38,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2024-11-13 14:33:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2024-11-13 14:33:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2024-11-13 14:33:38,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2024-11-13 14:33:38,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2024-11-13 14:33:38,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2024-11-13 14:33:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2024-11-13 14:33:38,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2024-11-13 14:33:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2024-11-13 14:33:38,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:33:38,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2024-11-13 14:33:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,486 INFO L134 CoverageAnalysis]: Checked inductivity of 1239 backedges. 61 proven. 105 refuted. 0 times theorem prover too weak. 1073 trivial. 0 not checked. [2024-11-13 14:33:38,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:33:38,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880428376] [2024-11-13 14:33:38,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880428376] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:33:38,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864415241] [2024-11-13 14:33:38,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:33:38,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:33:38,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:33:38,489 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:33:38,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-13 14:33:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:39,499 INFO L255 TraceCheckSpWp]: Trace formula consists of 3347 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 14:33:39,516 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:33:40,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1239 backedges. 556 proven. 36 refuted. 0 times theorem prover too weak. 647 trivial. 0 not checked. [2024-11-13 14:33:40,084 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:33:41,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1239 backedges. 101 proven. 52 refuted. 0 times theorem prover too weak. 1086 trivial. 0 not checked. [2024-11-13 14:33:41,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864415241] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:33:41,545 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:33:41,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 11] total 28 [2024-11-13 14:33:41,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039593818] [2024-11-13 14:33:41,545 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:33:41,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-13 14:33:41,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:33:41,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-13 14:33:41,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=655, Unknown=0, NotChecked=0, Total=756 [2024-11-13 14:33:41,549 INFO L87 Difference]: Start difference. First operand 15743 states and 25633 transitions. Second operand has 28 states, 27 states have (on average 15.555555555555555) internal successors, (420), 23 states have internal predecessors, (420), 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) [2024-11-13 14:35:09,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:35:09,584 INFO L93 Difference]: Finished difference Result 70071 states and 127052 transitions. [2024-11-13 14:35:09,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2024-11-13 14:35:09,585 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 15.555555555555555) internal successors, (420), 23 states have internal predecessors, (420), 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) Word has length 513 [2024-11-13 14:35:09,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:35:10,156 INFO L225 Difference]: With dead ends: 70071 [2024-11-13 14:35:10,157 INFO L226 Difference]: Without dead ends: 52531 [2024-11-13 14:35:10,369 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1335 GetRequests, 1172 SyntacticMatches, 5 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10099 ImplicationChecksByTransitivity, 30.3s TimeCoverageRelationStatistics Valid=4378, Invalid=21062, Unknown=0, NotChecked=0, Total=25440 [2024-11-13 14:35:10,370 INFO L432 NwaCegarLoop]: 826 mSDtfsCounter, 21406 mSDsluCounter, 8395 mSDsCounter, 0 mSdLazyCounter, 19052 mSolverCounterSat, 9727 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21406 SdHoareTripleChecker+Valid, 9221 SdHoareTripleChecker+Invalid, 28779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 9727 IncrementalHoareTripleChecker+Valid, 19052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:35:10,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21406 Valid, 9221 Invalid, 28779 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [9727 Valid, 19052 Invalid, 0 Unknown, 0 Unchecked, 35.5s Time] [2024-11-13 14:35:10,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52531 states. [2024-11-13 14:35:19,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52531 to 29177. [2024-11-13 14:35:19,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29177 states, 23405 states have (on average 1.605169835505234) internal successors, (37569), 24085 states have internal predecessors, (37569), 3737 states have call successors, (3737), 1704 states have call predecessors, (3737), 2034 states have return successors, (5553), 3915 states have call predecessors, (5553), 3712 states have call successors, (5553) [2024-11-13 14:35:19,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29177 states to 29177 states and 46859 transitions. [2024-11-13 14:35:19,372 INFO L78 Accepts]: Start accepts. Automaton has 29177 states and 46859 transitions. Word has length 513 [2024-11-13 14:35:19,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:35:19,373 INFO L471 AbstractCegarLoop]: Abstraction has 29177 states and 46859 transitions. [2024-11-13 14:35:19,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 15.555555555555555) internal successors, (420), 23 states have internal predecessors, (420), 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) [2024-11-13 14:35:19,373 INFO L276 IsEmpty]: Start isEmpty. Operand 29177 states and 46859 transitions. [2024-11-13 14:35:19,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2024-11-13 14:35:19,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:35:19,439 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 8, 6, 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, 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] [2024-11-13 14:35:19,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-13 14:35:19,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-13 14:35:19,640 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:35:19,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:35:19,640 INFO L85 PathProgramCache]: Analyzing trace with hash 798324665, now seen corresponding path program 1 times [2024-11-13 14:35:19,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:35:19,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615530545] [2024-11-13 14:35:19,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:35:19,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:35:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:20,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:35:20,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:20,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:35:20,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:20,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 14:35:20,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:20,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 14:35:20,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:20,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:35:20,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:20,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:35:20,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:20,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:35:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:20,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:35:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:20,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 14:35:20,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:20,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-13 14:35:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:20,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-13 14:35:20,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:20,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:35:20,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:20,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-13 14:35:20,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:20,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-13 14:35:20,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:20,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 14:35:20,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:20,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-13 14:35:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:20,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:35:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:20,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-13 14:35:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:35:21,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:35:21,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:35:21,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:35:21,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 14:35:21,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:35:21,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:35:21,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:35:21,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 14:35:21,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:35:21,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-13 14:35:21,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:35:21,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-11-13 14:35:21,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:35:21,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:35:21,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:35:21,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:35:21,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 14:35:21,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:35:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:35:21,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:35:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 14:35:21,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 14:35:21,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:35:21,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2024-11-13 14:35:21,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:35:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 14:35:21,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2024-11-13 14:35:21,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:35:21,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2024-11-13 14:35:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2024-11-13 14:35:21,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2024-11-13 14:35:21,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2024-11-13 14:35:21,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2024-11-13 14:35:21,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2024-11-13 14:35:21,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2024-11-13 14:35:21,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2024-11-13 14:35:21,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2024-11-13 14:35:21,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 14:35:21,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 507 [2024-11-13 14:35:21,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:21,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1299 backedges. 107 proven. 133 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2024-11-13 14:35:21,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:35:21,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615530545] [2024-11-13 14:35:21,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615530545] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:35:21,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933728932] [2024-11-13 14:35:21,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:35:21,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:35:21,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:35:21,303 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:35:21,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb270e6c-1dfd-4da1-81a8-5f7c6305691a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-13 14:35:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:22,276 INFO L255 TraceCheckSpWp]: Trace formula consists of 3352 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 14:35:22,284 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:35:22,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1299 backedges. 467 proven. 0 refuted. 0 times theorem prover too weak. 832 trivial. 0 not checked. [2024-11-13 14:35:22,514 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:35:22,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933728932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:35:22,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:35:22,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [20] total 22 [2024-11-13 14:35:22,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303843351] [2024-11-13 14:35:22,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:35:22,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:35:22,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:35:22,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:35:22,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2024-11-13 14:35:22,518 INFO L87 Difference]: Start difference. First operand 29177 states and 46859 transitions. Second operand has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38)