./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec14_product03.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec14_product03.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8ed4163e8f042a84d9cdccd4fee3ee0ba89fdce83cd991779acec4a51d9a650c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:53:20,158 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:53:20,265 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:53:20,272 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:53:20,272 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:53:20,319 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:53:20,319 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:53:20,321 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:53:20,321 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:53:20,322 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:53:20,323 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:53:20,324 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:53:20,324 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:53:20,324 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:53:20,324 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:53:20,325 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:53:20,325 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:53:20,325 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:53:20,325 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:53:20,325 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:53:20,325 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:53:20,325 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:53:20,326 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:53:20,326 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:53:20,326 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:53:20,326 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:53:20,327 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:53:20,327 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:53:20,327 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:53:20,327 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:53:20,328 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:53:20,328 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:53:20,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:53:20,328 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:53:20,329 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:53:20,329 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:53:20,329 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:53:20,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:53:20,329 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:53:20,329 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:53:20,329 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:53:20,330 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:53:20,330 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:53:20,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:53:20,330 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:53:20,330 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:53:20,330 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:53:20,330 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:53:20,330 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_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ed4163e8f042a84d9cdccd4fee3ee0ba89fdce83cd991779acec4a51d9a650c [2024-11-23 23:53:20,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:53:20,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:53:20,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:53:20,738 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:53:20,739 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:53:20,741 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/product-lines/elevator_spec14_product03.cil.c [2024-11-23 23:53:24,702 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/data/6635d0e3e/cb4b684fc3d649a8b1f5c7bff33c7818/FLAG5b2d9dd72 [2024-11-23 23:53:25,456 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:53:25,457 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/sv-benchmarks/c/product-lines/elevator_spec14_product03.cil.c [2024-11-23 23:53:25,501 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/data/6635d0e3e/cb4b684fc3d649a8b1f5c7bff33c7818/FLAG5b2d9dd72 [2024-11-23 23:53:25,531 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/data/6635d0e3e/cb4b684fc3d649a8b1f5c7bff33c7818 [2024-11-23 23:53:25,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:53:25,537 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:53:25,539 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:53:25,539 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:53:25,548 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:53:25,549 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:53:25" (1/1) ... [2024-11-23 23:53:25,552 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f7cd794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:25, skipping insertion in model container [2024-11-23 23:53:25,553 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:53:25" (1/1) ... [2024-11-23 23:53:25,637 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:53:26,396 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_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/sv-benchmarks/c/product-lines/elevator_spec14_product03.cil.c[68958,68971] [2024-11-23 23:53:26,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:53:26,417 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:53:26,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [48] [2024-11-23 23:53:26,431 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [169] [2024-11-23 23:53:26,431 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [268] [2024-11-23 23:53:26,431 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [935] [2024-11-23 23:53:26,432 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [976] [2024-11-23 23:53:26,432 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [994] [2024-11-23 23:53:26,432 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1346] [2024-11-23 23:53:26,432 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1712] [2024-11-23 23:53:26,433 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1747] [2024-11-23 23:53:26,433 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3244] [2024-11-23 23:53:26,644 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_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/sv-benchmarks/c/product-lines/elevator_spec14_product03.cil.c[68958,68971] [2024-11-23 23:53:26,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:53:26,688 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:53:26,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:26 WrapperNode [2024-11-23 23:53:26,689 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:53:26,690 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:53:26,691 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:53:26,691 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:53:26,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:26" (1/1) ... [2024-11-23 23:53:26,751 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:26" (1/1) ... [2024-11-23 23:53:26,808 INFO L138 Inliner]: procedures = 89, calls = 329, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 1001 [2024-11-23 23:53:26,809 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:53:26,810 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:53:26,810 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:53:26,810 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:53:26,823 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:26" (1/1) ... [2024-11-23 23:53:26,823 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:26" (1/1) ... [2024-11-23 23:53:26,831 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:26" (1/1) ... [2024-11-23 23:53:26,889 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-11-23 23:53:26,889 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:26" (1/1) ... [2024-11-23 23:53:26,889 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:26" (1/1) ... [2024-11-23 23:53:26,926 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:26" (1/1) ... [2024-11-23 23:53:26,928 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:26" (1/1) ... [2024-11-23 23:53:26,960 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:26" (1/1) ... [2024-11-23 23:53:26,971 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:26" (1/1) ... [2024-11-23 23:53:26,976 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:26" (1/1) ... [2024-11-23 23:53:26,995 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:53:26,996 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:53:26,996 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:53:26,996 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:53:26,998 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:26" (1/1) ... [2024-11-23 23:53:27,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:53:27,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:53:27,049 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:53:27,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:53:27,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:53:27,088 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-23 23:53:27,089 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-23 23:53:27,089 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-23 23:53:27,089 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-23 23:53:27,090 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-11-23 23:53:27,090 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-11-23 23:53:27,090 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-23 23:53:27,091 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-23 23:53:27,091 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2024-11-23 23:53:27,091 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2024-11-23 23:53:27,091 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-23 23:53:27,091 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-23 23:53:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-23 23:53:27,092 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-23 23:53:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-23 23:53:27,092 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-23 23:53:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-23 23:53:27,092 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-23 23:53:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-23 23:53:27,092 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-23 23:53:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-23 23:53:27,092 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-23 23:53:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-23 23:53:27,093 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-23 23:53:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-23 23:53:27,093 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-23 23:53:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-23 23:53:27,093 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-23 23:53:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-23 23:53:27,093 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-23 23:53:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-23 23:53:27,093 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-23 23:53:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-23 23:53:27,097 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-23 23:53:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__base [2024-11-23 23:53:27,097 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__base [2024-11-23 23:53:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:53:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 23:53:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 23:53:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 23:53:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-23 23:53:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-23 23:53:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-23 23:53:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-23 23:53:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-23 23:53:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-23 23:53:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-23 23:53:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-23 23:53:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-23 23:53:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-23 23:53:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-23 23:53:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-23 23:53:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-23 23:53:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-23 23:53:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-23 23:53:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-23 23:53:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-23 23:53:27,099 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-23 23:53:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-23 23:53:27,099 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-23 23:53:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-23 23:53:27,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-23 23:53:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:53:27,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:53:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-23 23:53:27,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-23 23:53:27,436 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:53:27,440 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:53:29,648 INFO L? ?]: Removed 422 outVars from TransFormulas that were not future-live. [2024-11-23 23:53:29,649 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:53:29,706 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:53:29,706 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 23:53:29,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:53:29 BoogieIcfgContainer [2024-11-23 23:53:29,711 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:53:29,719 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:53:29,719 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:53:29,729 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:53:29,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:53:25" (1/3) ... [2024-11-23 23:53:29,730 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c5766f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:53:29, skipping insertion in model container [2024-11-23 23:53:29,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:26" (2/3) ... [2024-11-23 23:53:29,731 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c5766f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:53:29, skipping insertion in model container [2024-11-23 23:53:29,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:53:29" (3/3) ... [2024-11-23 23:53:29,735 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product03.cil.c [2024-11-23 23:53:29,758 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:53:29,762 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec14_product03.cil.c that has 23 procedures, 516 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 23:53:29,887 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:53:29,908 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;@2c4546dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:53:29,909 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:53:29,918 INFO L276 IsEmpty]: Start isEmpty. Operand has 516 states, 401 states have (on average 1.6832917705735662) internal successors, (675), 417 states have internal predecessors, (675), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-23 23:53:29,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-23 23:53:29,958 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:29,959 INFO L218 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] [2024-11-23 23:53:29,960 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:29,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:29,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1164522639, now seen corresponding path program 1 times [2024-11-23 23:53:29,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:29,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122802391] [2024-11-23 23:53:29,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:29,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:30,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:30,875 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:53:30,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:30,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122802391] [2024-11-23 23:53:30,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122802391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:30,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:30,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:53:30,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078461627] [2024-11-23 23:53:30,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:30,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:53:30,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:30,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:53:30,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:53:30,924 INFO L87 Difference]: Start difference. First operand has 516 states, 401 states have (on average 1.6832917705735662) internal successors, (675), 417 states have internal predecessors, (675), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:53:31,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:31,265 INFO L93 Difference]: Finished difference Result 1025 states and 1714 transitions. [2024-11-23 23:53:31,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:53:31,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 2 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 [2024-11-23 23:53:31,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:31,301 INFO L225 Difference]: With dead ends: 1025 [2024-11-23 23:53:31,302 INFO L226 Difference]: Without dead ends: 511 [2024-11-23 23:53:31,322 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:53:31,328 INFO L435 NwaCegarLoop]: 840 mSDtfsCounter, 6 mSDsluCounter, 1674 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2514 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:31,329 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2514 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:53:31,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-11-23 23:53:31,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 511. [2024-11-23 23:53:31,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 397 states have (on average 1.672544080604534) internal successors, (664), 412 states have internal predecessors, (664), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-23 23:53:31,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 845 transitions. [2024-11-23 23:53:31,496 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 845 transitions. Word has length 101 [2024-11-23 23:53:31,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:31,497 INFO L471 AbstractCegarLoop]: Abstraction has 511 states and 845 transitions. [2024-11-23 23:53:31,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:53:31,497 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 845 transitions. [2024-11-23 23:53:31,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-23 23:53:31,506 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:31,507 INFO L218 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] [2024-11-23 23:53:31,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:53:31,509 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:31,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:31,510 INFO L85 PathProgramCache]: Analyzing trace with hash -918214631, now seen corresponding path program 1 times [2024-11-23 23:53:31,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:31,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183709772] [2024-11-23 23:53:31,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:31,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:31,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:32,026 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:53:32,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:32,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183709772] [2024-11-23 23:53:32,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183709772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:32,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:32,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:53:32,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930272044] [2024-11-23 23:53:32,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:32,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:53:32,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:32,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:53:32,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:53:32,034 INFO L87 Difference]: Start difference. First operand 511 states and 845 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:53:32,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:32,237 INFO L93 Difference]: Finished difference Result 1005 states and 1667 transitions. [2024-11-23 23:53:32,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:53:32,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 2 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 [2024-11-23 23:53:32,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:32,249 INFO L225 Difference]: With dead ends: 1005 [2024-11-23 23:53:32,249 INFO L226 Difference]: Without dead ends: 511 [2024-11-23 23:53:32,256 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:53:32,260 INFO L435 NwaCegarLoop]: 831 mSDtfsCounter, 4 mSDsluCounter, 1655 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2486 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:32,260 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2486 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:53:32,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-11-23 23:53:32,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 511. [2024-11-23 23:53:32,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 397 states have (on average 1.6700251889168767) internal successors, (663), 412 states have internal predecessors, (663), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-23 23:53:32,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 844 transitions. [2024-11-23 23:53:32,346 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 844 transitions. Word has length 102 [2024-11-23 23:53:32,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:32,348 INFO L471 AbstractCegarLoop]: Abstraction has 511 states and 844 transitions. [2024-11-23 23:53:32,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:53:32,348 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 844 transitions. [2024-11-23 23:53:32,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 23:53:32,359 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:32,359 INFO L218 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] [2024-11-23 23:53:32,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:53:32,360 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:32,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:32,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1599401397, now seen corresponding path program 1 times [2024-11-23 23:53:32,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:32,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162880926] [2024-11-23 23:53:32,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:32,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:32,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:32,737 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:53:32,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:32,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162880926] [2024-11-23 23:53:32,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162880926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:32,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:32,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:53:32,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734700516] [2024-11-23 23:53:32,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:32,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:53:32,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:32,742 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:53:32,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:53:32,743 INFO L87 Difference]: Start difference. First operand 511 states and 844 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:53:32,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:32,889 INFO L93 Difference]: Finished difference Result 1005 states and 1666 transitions. [2024-11-23 23:53:32,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:53:32,891 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 2 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 [2024-11-23 23:53:32,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:32,899 INFO L225 Difference]: With dead ends: 1005 [2024-11-23 23:53:32,900 INFO L226 Difference]: Without dead ends: 511 [2024-11-23 23:53:32,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:53:32,909 INFO L435 NwaCegarLoop]: 831 mSDtfsCounter, 3 mSDsluCounter, 1655 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2486 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:32,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2486 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:53:32,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-11-23 23:53:32,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 511. [2024-11-23 23:53:32,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 397 states have (on average 1.6675062972292192) internal successors, (662), 412 states have internal predecessors, (662), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-23 23:53:32,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 843 transitions. [2024-11-23 23:53:32,980 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 843 transitions. Word has length 103 [2024-11-23 23:53:32,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:32,982 INFO L471 AbstractCegarLoop]: Abstraction has 511 states and 843 transitions. [2024-11-23 23:53:32,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:53:32,983 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 843 transitions. [2024-11-23 23:53:32,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-23 23:53:32,990 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:32,990 INFO L218 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] [2024-11-23 23:53:32,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:53:32,993 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:32,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:32,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1782195499, now seen corresponding path program 1 times [2024-11-23 23:53:32,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:32,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799692461] [2024-11-23 23:53:32,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:32,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:33,353 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:53:33,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:33,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799692461] [2024-11-23 23:53:33,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799692461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:33,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:33,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:53:33,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149425640] [2024-11-23 23:53:33,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:33,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:53:33,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:33,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:53:33,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:53:33,359 INFO L87 Difference]: Start difference. First operand 511 states and 843 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:53:33,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:33,465 INFO L93 Difference]: Finished difference Result 1005 states and 1665 transitions. [2024-11-23 23:53:33,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:53:33,466 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (12), 2 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 [2024-11-23 23:53:33,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:33,473 INFO L225 Difference]: With dead ends: 1005 [2024-11-23 23:53:33,473 INFO L226 Difference]: Without dead ends: 511 [2024-11-23 23:53:33,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:53:33,478 INFO L435 NwaCegarLoop]: 831 mSDtfsCounter, 2 mSDsluCounter, 1655 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2486 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:33,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2486 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:53:33,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-11-23 23:53:33,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 511. [2024-11-23 23:53:33,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 397 states have (on average 1.6649874055415617) internal successors, (661), 412 states have internal predecessors, (661), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-23 23:53:33,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 842 transitions. [2024-11-23 23:53:33,533 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 842 transitions. Word has length 104 [2024-11-23 23:53:33,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:33,535 INFO L471 AbstractCegarLoop]: Abstraction has 511 states and 842 transitions. [2024-11-23 23:53:33,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:53:33,535 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 842 transitions. [2024-11-23 23:53:33,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-23 23:53:33,541 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:33,541 INFO L218 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] [2024-11-23 23:53:33,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:53:33,546 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:33,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:33,546 INFO L85 PathProgramCache]: Analyzing trace with hash 600281095, now seen corresponding path program 1 times [2024-11-23 23:53:33,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:33,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949475589] [2024-11-23 23:53:33,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:33,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:33,824 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:53:33,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:33,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949475589] [2024-11-23 23:53:33,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949475589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:33,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:33,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:53:33,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382118908] [2024-11-23 23:53:33,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:33,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:53:33,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:33,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:53:33,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:53:33,829 INFO L87 Difference]: Start difference. First operand 511 states and 842 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:53:33,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:33,915 INFO L93 Difference]: Finished difference Result 1005 states and 1664 transitions. [2024-11-23 23:53:33,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:53:33,915 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (12), 2 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 [2024-11-23 23:53:33,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:33,922 INFO L225 Difference]: With dead ends: 1005 [2024-11-23 23:53:33,924 INFO L226 Difference]: Without dead ends: 511 [2024-11-23 23:53:33,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:53:33,930 INFO L435 NwaCegarLoop]: 831 mSDtfsCounter, 1 mSDsluCounter, 1655 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2486 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:33,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2486 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:53:33,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-11-23 23:53:33,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 511. [2024-11-23 23:53:33,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 397 states have (on average 1.6624685138539044) internal successors, (660), 412 states have internal predecessors, (660), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-23 23:53:33,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 841 transitions. [2024-11-23 23:53:33,988 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 841 transitions. Word has length 105 [2024-11-23 23:53:33,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:33,989 INFO L471 AbstractCegarLoop]: Abstraction has 511 states and 841 transitions. [2024-11-23 23:53:33,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:53:33,989 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 841 transitions. [2024-11-23 23:53:33,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-23 23:53:33,995 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:33,995 INFO L218 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] [2024-11-23 23:53:33,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:53:33,996 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:33,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:33,996 INFO L85 PathProgramCache]: Analyzing trace with hash 901770641, now seen corresponding path program 1 times [2024-11-23 23:53:33,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:33,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490615308] [2024-11-23 23:53:33,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:33,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:34,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:34,368 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:53:34,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:34,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490615308] [2024-11-23 23:53:34,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490615308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:34,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:34,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 23:53:34,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857751052] [2024-11-23 23:53:34,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:34,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:53:34,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:34,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:53:34,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:53:34,373 INFO L87 Difference]: Start difference. First operand 511 states and 841 transitions. Second operand has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-23 23:53:34,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:34,551 INFO L93 Difference]: Finished difference Result 1016 states and 1681 transitions. [2024-11-23 23:53:34,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:53:34,552 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (12), 2 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 106 [2024-11-23 23:53:34,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:34,559 INFO L225 Difference]: With dead ends: 1016 [2024-11-23 23:53:34,563 INFO L226 Difference]: Without dead ends: 526 [2024-11-23 23:53:34,567 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:53:34,568 INFO L435 NwaCegarLoop]: 828 mSDtfsCounter, 91 mSDsluCounter, 4055 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 4883 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:34,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 4883 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:53:34,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2024-11-23 23:53:34,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 524. [2024-11-23 23:53:34,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 407 states have (on average 1.6584766584766584) internal successors, (675), 424 states have internal predecessors, (675), 92 states have call successors, (92), 23 states have call predecessors, (92), 24 states have return successors, (94), 89 states have call predecessors, (94), 91 states have call successors, (94) [2024-11-23 23:53:34,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 861 transitions. [2024-11-23 23:53:34,614 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 861 transitions. Word has length 106 [2024-11-23 23:53:34,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:34,614 INFO L471 AbstractCegarLoop]: Abstraction has 524 states and 861 transitions. [2024-11-23 23:53:34,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-23 23:53:34,615 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 861 transitions. [2024-11-23 23:53:34,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-23 23:53:34,619 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:34,619 INFO L218 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] [2024-11-23 23:53:34,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:53:34,620 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:34,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:34,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1840302256, now seen corresponding path program 1 times [2024-11-23 23:53:34,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:34,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178700052] [2024-11-23 23:53:34,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:34,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:34,799 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:53:34,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:34,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178700052] [2024-11-23 23:53:34,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178700052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:34,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:34,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:53:34,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067937376] [2024-11-23 23:53:34,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:34,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:53:34,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:34,802 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:53:34,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:53:34,803 INFO L87 Difference]: Start difference. First operand 524 states and 861 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:53:34,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:34,986 INFO L93 Difference]: Finished difference Result 1023 states and 1692 transitions. [2024-11-23 23:53:34,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:53:34,987 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (12), 2 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 [2024-11-23 23:53:34,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:34,995 INFO L225 Difference]: With dead ends: 1023 [2024-11-23 23:53:34,995 INFO L226 Difference]: Without dead ends: 520 [2024-11-23 23:53:35,000 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:53:35,002 INFO L435 NwaCegarLoop]: 829 mSDtfsCounter, 1 mSDsluCounter, 1652 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2481 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:35,002 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2481 Invalid, 29 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:53:35,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-23 23:53:35,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 520. [2024-11-23 23:53:35,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 405 states have (on average 1.6592592592592592) internal successors, (672), 421 states have internal predecessors, (672), 91 states have call successors, (91), 23 states have call predecessors, (91), 23 states have return successors, (91), 88 states have call predecessors, (91), 90 states have call successors, (91) [2024-11-23 23:53:35,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 854 transitions. [2024-11-23 23:53:35,046 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 854 transitions. Word has length 106 [2024-11-23 23:53:35,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:35,047 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 854 transitions. [2024-11-23 23:53:35,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:53:35,047 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 854 transitions. [2024-11-23 23:53:35,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-23 23:53:35,052 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:35,052 INFO L218 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] [2024-11-23 23:53:35,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:53:35,052 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:35,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:35,053 INFO L85 PathProgramCache]: Analyzing trace with hash -120004729, now seen corresponding path program 1 times [2024-11-23 23:53:35,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:35,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156492553] [2024-11-23 23:53:35,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:35,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:35,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:35,326 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:53:35,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:35,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156492553] [2024-11-23 23:53:35,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156492553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:35,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:35,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:53:35,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474012905] [2024-11-23 23:53:35,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:35,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:53:35,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:35,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:53:35,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:53:35,331 INFO L87 Difference]: Start difference. First operand 520 states and 854 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:53:35,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:35,788 INFO L93 Difference]: Finished difference Result 1066 states and 1764 transitions. [2024-11-23 23:53:35,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:53:35,789 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 107 [2024-11-23 23:53:35,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:35,796 INFO L225 Difference]: With dead ends: 1066 [2024-11-23 23:53:35,796 INFO L226 Difference]: Without dead ends: 552 [2024-11-23 23:53:35,801 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:53:35,802 INFO L435 NwaCegarLoop]: 803 mSDtfsCounter, 72 mSDsluCounter, 3133 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 3936 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:35,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 3936 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:53:35,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-11-23 23:53:35,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 525. [2024-11-23 23:53:35,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 410 states have (on average 1.6439024390243901) internal successors, (674), 425 states have internal predecessors, (674), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-23 23:53:35,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 855 transitions. [2024-11-23 23:53:35,840 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 855 transitions. Word has length 107 [2024-11-23 23:53:35,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:35,841 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 855 transitions. [2024-11-23 23:53:35,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:53:35,842 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 855 transitions. [2024-11-23 23:53:35,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-23 23:53:35,846 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:35,846 INFO L218 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] [2024-11-23 23:53:35,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:53:35,846 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:35,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:35,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1893917172, now seen corresponding path program 1 times [2024-11-23 23:53:35,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:35,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090201974] [2024-11-23 23:53:35,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:35,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:36,112 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:53:36,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:36,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090201974] [2024-11-23 23:53:36,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090201974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:36,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:36,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:53:36,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052315287] [2024-11-23 23:53:36,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:36,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:53:36,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:36,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:53:36,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:53:36,116 INFO L87 Difference]: Start difference. First operand 525 states and 855 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:53:36,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:36,500 INFO L93 Difference]: Finished difference Result 1017 states and 1659 transitions. [2024-11-23 23:53:36,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:53:36,502 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2024-11-23 23:53:36,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:36,508 INFO L225 Difference]: With dead ends: 1017 [2024-11-23 23:53:36,508 INFO L226 Difference]: Without dead ends: 543 [2024-11-23 23:53:36,512 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:53:36,513 INFO L435 NwaCegarLoop]: 792 mSDtfsCounter, 56 mSDsluCounter, 3121 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 3913 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:36,513 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 3913 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:53:36,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-11-23 23:53:36,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 525. [2024-11-23 23:53:36,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 410 states have (on average 1.6341463414634145) internal successors, (670), 425 states have internal predecessors, (670), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-23 23:53:36,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 851 transitions. [2024-11-23 23:53:36,552 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 851 transitions. Word has length 108 [2024-11-23 23:53:36,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:36,552 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 851 transitions. [2024-11-23 23:53:36,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:53:36,553 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 851 transitions. [2024-11-23 23:53:36,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:53:36,558 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:36,558 INFO L218 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] [2024-11-23 23:53:36,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:53:36,559 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:36,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:36,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1065643500, now seen corresponding path program 1 times [2024-11-23 23:53:36,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:36,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7256899] [2024-11-23 23:53:36,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:36,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:36,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:36,823 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:53:36,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:36,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7256899] [2024-11-23 23:53:36,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7256899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:36,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:36,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:53:36,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38986147] [2024-11-23 23:53:36,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:36,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:53:36,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:36,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:53:36,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:53:36,827 INFO L87 Difference]: Start difference. First operand 525 states and 851 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:53:37,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:37,227 INFO L93 Difference]: Finished difference Result 1017 states and 1655 transitions. [2024-11-23 23:53:37,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:53:37,228 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2024-11-23 23:53:37,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:37,237 INFO L225 Difference]: With dead ends: 1017 [2024-11-23 23:53:37,237 INFO L226 Difference]: Without dead ends: 543 [2024-11-23 23:53:37,241 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:53:37,243 INFO L435 NwaCegarLoop]: 791 mSDtfsCounter, 55 mSDsluCounter, 3117 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 3908 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:37,244 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 3908 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:53:37,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-11-23 23:53:37,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 525. [2024-11-23 23:53:37,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 410 states have (on average 1.6243902439024391) internal successors, (666), 425 states have internal predecessors, (666), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-23 23:53:37,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 847 transitions. [2024-11-23 23:53:37,282 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 847 transitions. Word has length 109 [2024-11-23 23:53:37,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:37,282 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 847 transitions. [2024-11-23 23:53:37,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:53:37,283 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 847 transitions. [2024-11-23 23:53:37,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:53:37,287 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:37,288 INFO L218 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] [2024-11-23 23:53:37,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 23:53:37,289 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:37,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:37,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1441117588, now seen corresponding path program 1 times [2024-11-23 23:53:37,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:37,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126400267] [2024-11-23 23:53:37,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:37,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:37,554 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:53:37,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:37,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126400267] [2024-11-23 23:53:37,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126400267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:37,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:37,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 23:53:37,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190192612] [2024-11-23 23:53:37,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:37,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:53:37,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:37,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:53:37,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:53:37,557 INFO L87 Difference]: Start difference. First operand 525 states and 847 transitions. Second operand has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-23 23:53:37,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:37,706 INFO L93 Difference]: Finished difference Result 1008 states and 1637 transitions. [2024-11-23 23:53:37,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:53:37,707 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (12), 2 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 109 [2024-11-23 23:53:37,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:37,713 INFO L225 Difference]: With dead ends: 1008 [2024-11-23 23:53:37,713 INFO L226 Difference]: Without dead ends: 513 [2024-11-23 23:53:37,717 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:53:37,718 INFO L435 NwaCegarLoop]: 817 mSDtfsCounter, 94 mSDsluCounter, 3989 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 4806 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:37,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 4806 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:53:37,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-11-23 23:53:37,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 504. [2024-11-23 23:53:37,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 389 states have (on average 1.6169665809768639) internal successors, (629), 404 states have internal predecessors, (629), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-23 23:53:37,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 810 transitions. [2024-11-23 23:53:37,750 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 810 transitions. Word has length 109 [2024-11-23 23:53:37,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:37,751 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 810 transitions. [2024-11-23 23:53:37,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-23 23:53:37,751 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 810 transitions. [2024-11-23 23:53:37,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-23 23:53:37,755 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:37,755 INFO L218 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] [2024-11-23 23:53:37,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 23:53:37,756 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:37,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:37,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1971347015, now seen corresponding path program 1 times [2024-11-23 23:53:37,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:37,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995622922] [2024-11-23 23:53:37,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:37,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:37,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:37,989 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:53:37,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:37,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995622922] [2024-11-23 23:53:37,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995622922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:37,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:37,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:53:37,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748502196] [2024-11-23 23:53:37,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:37,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:53:37,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:37,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:53:37,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:53:37,992 INFO L87 Difference]: Start difference. First operand 504 states and 810 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:53:38,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:38,191 INFO L93 Difference]: Finished difference Result 987 states and 1600 transitions. [2024-11-23 23:53:38,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:53:38,192 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2024-11-23 23:53:38,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:38,198 INFO L225 Difference]: With dead ends: 987 [2024-11-23 23:53:38,198 INFO L226 Difference]: Without dead ends: 513 [2024-11-23 23:53:38,202 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:53:38,203 INFO L435 NwaCegarLoop]: 792 mSDtfsCounter, 39 mSDsluCounter, 3121 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3913 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:38,204 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3913 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:53:38,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-11-23 23:53:38,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 504. [2024-11-23 23:53:38,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 389 states have (on average 1.6143958868894601) internal successors, (628), 404 states have internal predecessors, (628), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-23 23:53:38,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 809 transitions. [2024-11-23 23:53:38,241 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 809 transitions. Word has length 110 [2024-11-23 23:53:38,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:38,242 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 809 transitions. [2024-11-23 23:53:38,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:53:38,242 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 809 transitions. [2024-11-23 23:53:38,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-23 23:53:38,246 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:38,247 INFO L218 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] [2024-11-23 23:53:38,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 23:53:38,248 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:38,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:38,248 INFO L85 PathProgramCache]: Analyzing trace with hash -464115631, now seen corresponding path program 1 times [2024-11-23 23:53:38,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:38,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305179846] [2024-11-23 23:53:38,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:38,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:38,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:38,520 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:53:38,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:38,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305179846] [2024-11-23 23:53:38,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305179846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:38,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:38,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:53:38,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991819757] [2024-11-23 23:53:38,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:38,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:53:38,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:38,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:53:38,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:53:38,524 INFO L87 Difference]: Start difference. First operand 504 states and 809 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:53:38,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:38,737 INFO L93 Difference]: Finished difference Result 987 states and 1599 transitions. [2024-11-23 23:53:38,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:53:38,738 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2024-11-23 23:53:38,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:38,745 INFO L225 Difference]: With dead ends: 987 [2024-11-23 23:53:38,745 INFO L226 Difference]: Without dead ends: 513 [2024-11-23 23:53:38,750 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:53:38,751 INFO L435 NwaCegarLoop]: 792 mSDtfsCounter, 38 mSDsluCounter, 3121 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3913 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:38,752 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 3913 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:53:38,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-11-23 23:53:38,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 504. [2024-11-23 23:53:38,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 389 states have (on average 1.6118251928020566) internal successors, (627), 404 states have internal predecessors, (627), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-23 23:53:38,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 808 transitions. [2024-11-23 23:53:38,796 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 808 transitions. Word has length 111 [2024-11-23 23:53:38,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:38,796 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 808 transitions. [2024-11-23 23:53:38,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:53:38,797 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 808 transitions. [2024-11-23 23:53:38,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-23 23:53:38,801 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:38,802 INFO L218 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] [2024-11-23 23:53:38,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 23:53:38,803 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:38,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:38,804 INFO L85 PathProgramCache]: Analyzing trace with hash 180073854, now seen corresponding path program 1 times [2024-11-23 23:53:38,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:38,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725623817] [2024-11-23 23:53:38,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:38,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:38,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:39,016 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:53:39,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:39,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725623817] [2024-11-23 23:53:39,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725623817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:39,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:39,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:53:39,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132792396] [2024-11-23 23:53:39,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:39,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:53:39,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:39,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:53:39,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:53:39,020 INFO L87 Difference]: Start difference. First operand 504 states and 808 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:53:39,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:39,137 INFO L93 Difference]: Finished difference Result 974 states and 1578 transitions. [2024-11-23 23:53:39,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:53:39,138 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (12), 2 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 112 [2024-11-23 23:53:39,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:39,145 INFO L225 Difference]: With dead ends: 974 [2024-11-23 23:53:39,145 INFO L226 Difference]: Without dead ends: 506 [2024-11-23 23:53:39,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:53:39,151 INFO L435 NwaCegarLoop]: 771 mSDtfsCounter, 16 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2297 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:39,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2297 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:53:39,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2024-11-23 23:53:39,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2024-11-23 23:53:39,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 391 states have (on average 1.60613810741688) internal successors, (628), 406 states have internal predecessors, (628), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-23 23:53:39,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 809 transitions. [2024-11-23 23:53:39,197 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 809 transitions. Word has length 112 [2024-11-23 23:53:39,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:39,198 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 809 transitions. [2024-11-23 23:53:39,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:53:39,198 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 809 transitions. [2024-11-23 23:53:39,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-23 23:53:39,205 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:39,205 INFO L218 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] [2024-11-23 23:53:39,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 23:53:39,206 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:39,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:39,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1451121786, now seen corresponding path program 1 times [2024-11-23 23:53:39,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:39,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606286036] [2024-11-23 23:53:39,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:39,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:39,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:39,422 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-23 23:53:39,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:39,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606286036] [2024-11-23 23:53:39,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606286036] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:53:39,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188758369] [2024-11-23 23:53:39,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:39,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:53:39,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:53:39,426 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:53:39,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:53:39,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:39,930 INFO L256 TraceCheckSpWp]: Trace formula consists of 1208 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:53:39,940 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:53:40,171 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-23 23:53:40,171 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:53:40,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188758369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:40,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:53:40,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-23 23:53:40,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460645676] [2024-11-23 23:53:40,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:40,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:53:40,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:40,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:53:40,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:53:40,174 INFO L87 Difference]: Start difference. First operand 506 states and 809 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) [2024-11-23 23:53:41,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:41,173 INFO L93 Difference]: Finished difference Result 977 states and 1604 transitions. [2024-11-23 23:53:41,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:53:41,175 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 [2024-11-23 23:53:41,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:41,181 INFO L225 Difference]: With dead ends: 977 [2024-11-23 23:53:41,181 INFO L226 Difference]: Without dead ends: 514 [2024-11-23 23:53:41,187 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:53:41,188 INFO L435 NwaCegarLoop]: 770 mSDtfsCounter, 747 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 1954 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:41,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [751 Valid, 1954 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 23:53:41,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-11-23 23:53:41,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2024-11-23 23:53:41,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 398 states have (on average 1.6080402010050252) internal successors, (640), 413 states have internal predecessors, (640), 91 states have call successors, (91), 25 states have call predecessors, (91), 24 states have return successors, (91), 88 states have call predecessors, (91), 90 states have call successors, (91) [2024-11-23 23:53:41,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 822 transitions. [2024-11-23 23:53:41,230 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 822 transitions. Word has length 113 [2024-11-23 23:53:41,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:41,230 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 822 transitions. [2024-11-23 23:53:41,230 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) [2024-11-23 23:53:41,231 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 822 transitions. [2024-11-23 23:53:41,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-23 23:53:41,235 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:41,235 INFO L218 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] [2024-11-23 23:53:41,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 23:53:41,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-23 23:53:41,451 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:41,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:41,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1370191347, now seen corresponding path program 1 times [2024-11-23 23:53:41,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:41,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207230526] [2024-11-23 23:53:41,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:41,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:41,815 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-23 23:53:41,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:41,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207230526] [2024-11-23 23:53:41,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207230526] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:53:41,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323932870] [2024-11-23 23:53:41,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:41,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:53:41,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:53:41,819 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:53:41,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:53:42,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:42,316 INFO L256 TraceCheckSpWp]: Trace formula consists of 1211 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:53:42,323 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:53:42,551 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-23 23:53:42,551 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:53:42,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323932870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:42,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:53:42,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-23 23:53:42,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279670991] [2024-11-23 23:53:42,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:42,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:53:42,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:42,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:53:42,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:53:42,554 INFO L87 Difference]: Start difference. First operand 514 states and 822 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) [2024-11-23 23:53:43,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:43,508 INFO L93 Difference]: Finished difference Result 993 states and 1627 transitions. [2024-11-23 23:53:43,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:53:43,509 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 [2024-11-23 23:53:43,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:43,516 INFO L225 Difference]: With dead ends: 993 [2024-11-23 23:53:43,516 INFO L226 Difference]: Without dead ends: 522 [2024-11-23 23:53:43,521 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:53:43,522 INFO L435 NwaCegarLoop]: 767 mSDtfsCounter, 745 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 1951 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:43,523 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [752 Valid, 1951 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 23:53:43,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2024-11-23 23:53:43,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 522. [2024-11-23 23:53:43,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 405 states have (on average 1.6098765432098765) internal successors, (652), 420 states have internal predecessors, (652), 91 states have call successors, (91), 26 states have call predecessors, (91), 25 states have return successors, (92), 88 states have call predecessors, (92), 90 states have call successors, (92) [2024-11-23 23:53:43,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 835 transitions. [2024-11-23 23:53:43,564 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 835 transitions. Word has length 116 [2024-11-23 23:53:43,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:43,565 INFO L471 AbstractCegarLoop]: Abstraction has 522 states and 835 transitions. [2024-11-23 23:53:43,565 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) [2024-11-23 23:53:43,565 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 835 transitions. [2024-11-23 23:53:43,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 23:53:43,570 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:43,570 INFO L218 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] [2024-11-23 23:53:43,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 23:53:43,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-23 23:53:43,775 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:43,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:43,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1216445154, now seen corresponding path program 1 times [2024-11-23 23:53:43,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:43,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635041645] [2024-11-23 23:53:43,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:43,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:43,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:43,989 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-23 23:53:43,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:43,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635041645] [2024-11-23 23:53:43,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635041645] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:53:43,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271335114] [2024-11-23 23:53:43,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:43,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:53:43,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:53:43,994 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:53:43,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 23:53:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:44,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 1214 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:53:44,476 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:53:44,706 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-23 23:53:44,709 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:53:44,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271335114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:44,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:53:44,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-23 23:53:44,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708166944] [2024-11-23 23:53:44,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:44,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:53:44,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:44,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:53:44,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:53:44,712 INFO L87 Difference]: Start difference. First operand 522 states and 835 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) [2024-11-23 23:53:45,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:45,637 INFO L93 Difference]: Finished difference Result 1009 states and 1650 transitions. [2024-11-23 23:53:45,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:53:45,638 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 [2024-11-23 23:53:45,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:45,645 INFO L225 Difference]: With dead ends: 1009 [2024-11-23 23:53:45,645 INFO L226 Difference]: Without dead ends: 530 [2024-11-23 23:53:45,651 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:53:45,652 INFO L435 NwaCegarLoop]: 764 mSDtfsCounter, 731 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 1948 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:45,653 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 1948 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 23:53:45,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-11-23 23:53:45,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2024-11-23 23:53:45,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 412 states have (on average 1.6116504854368932) internal successors, (664), 427 states have internal predecessors, (664), 91 states have call successors, (91), 27 states have call predecessors, (91), 26 states have return successors, (93), 88 states have call predecessors, (93), 90 states have call successors, (93) [2024-11-23 23:53:45,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 848 transitions. [2024-11-23 23:53:45,700 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 848 transitions. Word has length 119 [2024-11-23 23:53:45,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:45,701 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 848 transitions. [2024-11-23 23:53:45,701 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) [2024-11-23 23:53:45,701 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 848 transitions. [2024-11-23 23:53:45,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-23 23:53:45,705 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:45,705 INFO L218 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] [2024-11-23 23:53:45,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 23:53:45,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-23 23:53:45,906 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:45,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:45,907 INFO L85 PathProgramCache]: Analyzing trace with hash 66951559, now seen corresponding path program 1 times [2024-11-23 23:53:45,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:45,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99572243] [2024-11-23 23:53:45,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:45,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:45,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:46,176 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-23 23:53:46,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:46,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99572243] [2024-11-23 23:53:46,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99572243] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:53:46,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256061837] [2024-11-23 23:53:46,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:46,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:53:46,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:53:46,180 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:53:46,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 23:53:46,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:46,712 INFO L256 TraceCheckSpWp]: Trace formula consists of 1217 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:53:46,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:53:46,930 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-23 23:53:46,930 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:53:46,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256061837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:46,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:53:46,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-23 23:53:46,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598160231] [2024-11-23 23:53:46,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:46,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:53:46,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:46,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:53:46,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:53:46,934 INFO L87 Difference]: Start difference. First operand 530 states and 848 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) [2024-11-23 23:53:47,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:47,791 INFO L93 Difference]: Finished difference Result 1025 states and 1673 transitions. [2024-11-23 23:53:47,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:53:47,792 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 [2024-11-23 23:53:47,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:47,799 INFO L225 Difference]: With dead ends: 1025 [2024-11-23 23:53:47,799 INFO L226 Difference]: Without dead ends: 538 [2024-11-23 23:53:47,804 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:53:47,805 INFO L435 NwaCegarLoop]: 761 mSDtfsCounter, 721 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:47,805 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 1945 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:53:47,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-11-23 23:53:47,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2024-11-23 23:53:47,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 419 states have (on average 1.6133651551312649) internal successors, (676), 434 states have internal predecessors, (676), 91 states have call successors, (91), 28 states have call predecessors, (91), 27 states have return successors, (94), 88 states have call predecessors, (94), 90 states have call successors, (94) [2024-11-23 23:53:47,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 861 transitions. [2024-11-23 23:53:47,845 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 861 transitions. Word has length 122 [2024-11-23 23:53:47,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:47,845 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 861 transitions. [2024-11-23 23:53:47,845 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) [2024-11-23 23:53:47,846 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 861 transitions. [2024-11-23 23:53:47,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-23 23:53:47,850 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:47,851 INFO L218 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] [2024-11-23 23:53:47,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-23 23:53:48,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-23 23:53:48,052 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:48,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:48,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1148435518, now seen corresponding path program 1 times [2024-11-23 23:53:48,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:48,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518561212] [2024-11-23 23:53:48,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:48,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:48,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:48,478 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-23 23:53:48,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:48,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518561212] [2024-11-23 23:53:48,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518561212] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:53:48,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53546806] [2024-11-23 23:53:48,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:48,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:53:48,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:53:48,486 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:53:48,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 23:53:48,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:48,930 INFO L256 TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-23 23:53:48,936 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:53:49,256 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-23 23:53:49,260 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:53:49,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53546806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:49,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:53:49,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-23 23:53:49,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071550365] [2024-11-23 23:53:49,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:49,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:53:49,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:49,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:53:49,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:53:49,262 INFO L87 Difference]: Start difference. First operand 538 states and 861 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) [2024-11-23 23:53:50,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:50,296 INFO L93 Difference]: Finished difference Result 1526 states and 2508 transitions. [2024-11-23 23:53:50,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:53:50,297 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 [2024-11-23 23:53:50,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:50,308 INFO L225 Difference]: With dead ends: 1526 [2024-11-23 23:53:50,308 INFO L226 Difference]: Without dead ends: 1031 [2024-11-23 23:53:50,312 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:53:50,313 INFO L435 NwaCegarLoop]: 849 mSDtfsCounter, 773 mSDsluCounter, 2457 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 779 SdHoareTripleChecker+Valid, 3306 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:50,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [779 Valid, 3306 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 23:53:50,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2024-11-23 23:53:50,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1024. [2024-11-23 23:53:50,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1024 states, 797 states have (on average 1.6323713927227101) internal successors, (1301), 826 states have internal predecessors, (1301), 174 states have call successors, (174), 52 states have call predecessors, (174), 52 states have return successors, (193), 171 states have call predecessors, (193), 172 states have call successors, (193) [2024-11-23 23:53:50,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1668 transitions. [2024-11-23 23:53:50,395 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1668 transitions. Word has length 125 [2024-11-23 23:53:50,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:50,396 INFO L471 AbstractCegarLoop]: Abstraction has 1024 states and 1668 transitions. [2024-11-23 23:53:50,396 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) [2024-11-23 23:53:50,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1668 transitions. [2024-11-23 23:53:50,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-23 23:53:50,401 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:50,401 INFO L218 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] [2024-11-23 23:53:50,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-23 23:53:50,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:53:50,602 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:50,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:50,603 INFO L85 PathProgramCache]: Analyzing trace with hash 99464734, now seen corresponding path program 1 times [2024-11-23 23:53:50,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:50,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318857022] [2024-11-23 23:53:50,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:50,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:50,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:51,013 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-23 23:53:51,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:51,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318857022] [2024-11-23 23:53:51,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318857022] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:53:51,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738766400] [2024-11-23 23:53:51,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:51,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:53:51,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:53:51,019 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:53:51,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 23:53:51,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:51,438 INFO L256 TraceCheckSpWp]: Trace formula consists of 1216 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 23:53:51,444 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:53:51,704 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-23 23:53:51,704 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:53:51,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738766400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:51,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:53:51,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-23 23:53:51,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564768377] [2024-11-23 23:53:51,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:51,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:53:51,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:51,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:53:51,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:53:51,710 INFO L87 Difference]: Start difference. First operand 1024 states and 1668 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) [2024-11-23 23:53:52,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:52,468 INFO L93 Difference]: Finished difference Result 2023 states and 3343 transitions. [2024-11-23 23:53:52,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:53:52,469 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 [2024-11-23 23:53:52,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:52,483 INFO L225 Difference]: With dead ends: 2023 [2024-11-23 23:53:52,484 INFO L226 Difference]: Without dead ends: 1042 [2024-11-23 23:53:52,490 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:53:52,492 INFO L435 NwaCegarLoop]: 837 mSDtfsCounter, 717 mSDsluCounter, 2222 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 3059 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:52,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 3059 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:53:52,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2024-11-23 23:53:52,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 1034. [2024-11-23 23:53:52,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 803 states have (on average 1.6276463262764633) internal successors, (1307), 835 states have internal predecessors, (1307), 176 states have call successors, (176), 53 states have call predecessors, (176), 54 states have return successors, (203), 171 states have call predecessors, (203), 174 states have call successors, (203) [2024-11-23 23:53:52,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1686 transitions. [2024-11-23 23:53:52,668 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1686 transitions. Word has length 127 [2024-11-23 23:53:52,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:52,669 INFO L471 AbstractCegarLoop]: Abstraction has 1034 states and 1686 transitions. [2024-11-23 23:53:52,669 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) [2024-11-23 23:53:52,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1686 transitions. [2024-11-23 23:53:52,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-23 23:53:52,674 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:52,675 INFO L218 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] [2024-11-23 23:53:52,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-23 23:53:52,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:53:52,881 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:52,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:52,881 INFO L85 PathProgramCache]: Analyzing trace with hash -2142912267, now seen corresponding path program 1 times [2024-11-23 23:53:52,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:52,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566648613] [2024-11-23 23:53:52,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:52,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:52,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:53,422 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-23 23:53:53,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:53,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566648613] [2024-11-23 23:53:53,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566648613] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:53:53,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748893656] [2024-11-23 23:53:53,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:53,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:53:53,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:53:53,426 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:53:53,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-23 23:53:53,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:53,867 INFO L256 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 23:53:53,872 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:53:53,905 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-23 23:53:53,906 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:53:53,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748893656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:53,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:53:53,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-23 23:53:53,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713445972] [2024-11-23 23:53:53,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:53,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:53:53,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:53,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:53:53,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:53:53,909 INFO L87 Difference]: Start difference. First operand 1034 states and 1686 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) [2024-11-23 23:53:54,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:54,064 INFO L93 Difference]: Finished difference Result 2511 states and 4164 transitions. [2024-11-23 23:53:54,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:53:54,065 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 [2024-11-23 23:53:54,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:54,082 INFO L225 Difference]: With dead ends: 2511 [2024-11-23 23:53:54,082 INFO L226 Difference]: Without dead ends: 1521 [2024-11-23 23:53:54,089 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:53:54,092 INFO L435 NwaCegarLoop]: 1509 mSDtfsCounter, 748 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 2290 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:54,092 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 2290 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:53:54,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2024-11-23 23:53:54,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1034. [2024-11-23 23:53:54,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 803 states have (on average 1.62640099626401) internal successors, (1306), 835 states have internal predecessors, (1306), 176 states have call successors, (176), 53 states have call predecessors, (176), 54 states have return successors, (203), 171 states have call predecessors, (203), 174 states have call successors, (203) [2024-11-23 23:53:54,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1685 transitions. [2024-11-23 23:53:54,201 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1685 transitions. Word has length 132 [2024-11-23 23:53:54,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:54,202 INFO L471 AbstractCegarLoop]: Abstraction has 1034 states and 1685 transitions. [2024-11-23 23:53:54,202 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) [2024-11-23 23:53:54,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1685 transitions. [2024-11-23 23:53:54,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-23 23:53:54,207 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:54,207 INFO L218 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] [2024-11-23 23:53:54,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-23 23:53:54,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:53:54,409 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:54,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:54,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1441312393, now seen corresponding path program 1 times [2024-11-23 23:53:54,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:54,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172072860] [2024-11-23 23:53:54,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:54,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:54,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:54,811 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-23 23:53:54,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:54,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172072860] [2024-11-23 23:53:54,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172072860] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:53:54,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360032422] [2024-11-23 23:53:54,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:54,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:53:54,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:53:54,815 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:53:54,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-23 23:53:55,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:55,323 INFO L256 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 23:53:55,328 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:53:55,534 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-23 23:53:55,535 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:53:55,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360032422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:55,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:53:55,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-23 23:53:55,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924202944] [2024-11-23 23:53:55,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:55,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:53:55,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:55,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:53:55,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:53:55,537 INFO L87 Difference]: Start difference. First operand 1034 states and 1685 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) [2024-11-23 23:53:55,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:55,719 INFO L93 Difference]: Finished difference Result 2596 states and 4256 transitions. [2024-11-23 23:53:55,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:53:55,721 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 [2024-11-23 23:53:55,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:55,739 INFO L225 Difference]: With dead ends: 2596 [2024-11-23 23:53:55,739 INFO L226 Difference]: Without dead ends: 1607 [2024-11-23 23:53:55,747 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:53:55,749 INFO L435 NwaCegarLoop]: 863 mSDtfsCounter, 344 mSDsluCounter, 2511 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 3374 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:55,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 3374 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:53:55,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1607 states. [2024-11-23 23:53:55,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1607 to 1607. [2024-11-23 23:53:55,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1607 states, 1255 states have (on average 1.600796812749004) internal successors, (2009), 1292 states have internal predecessors, (2009), 260 states have call successors, (260), 89 states have call predecessors, (260), 91 states have return successors, (339), 251 states have call predecessors, (339), 256 states have call successors, (339) [2024-11-23 23:53:55,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1607 states to 1607 states and 2608 transitions. [2024-11-23 23:53:55,899 INFO L78 Accepts]: Start accepts. Automaton has 1607 states and 2608 transitions. Word has length 132 [2024-11-23 23:53:55,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:55,900 INFO L471 AbstractCegarLoop]: Abstraction has 1607 states and 2608 transitions. [2024-11-23 23:53:55,900 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) [2024-11-23 23:53:55,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1607 states and 2608 transitions. [2024-11-23 23:53:55,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-23 23:53:55,906 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:55,906 INFO L218 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] [2024-11-23 23:53:55,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-23 23:53:56,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:53:56,108 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:56,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:56,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1637501177, now seen corresponding path program 1 times [2024-11-23 23:53:56,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:56,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535109752] [2024-11-23 23:53:56,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:56,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:56,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:56,467 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-23 23:53:56,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:56,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535109752] [2024-11-23 23:53:56,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535109752] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:53:56,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343488714] [2024-11-23 23:53:56,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:56,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:53:56,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:53:56,471 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:53:56,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-23 23:53:56,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:56,916 INFO L256 TraceCheckSpWp]: Trace formula consists of 1229 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 23:53:56,921 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:53:57,066 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-23 23:53:57,066 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:53:57,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343488714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:57,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:53:57,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 10 [2024-11-23 23:53:57,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39119584] [2024-11-23 23:53:57,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:57,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:53:57,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:57,068 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:53:57,068 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:53:57,069 INFO L87 Difference]: Start difference. First operand 1607 states and 2608 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 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) [2024-11-23 23:53:57,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:57,189 INFO L93 Difference]: Finished difference Result 2919 states and 4731 transitions. [2024-11-23 23:53:57,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:53:57,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 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 [2024-11-23 23:53:57,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:57,206 INFO L225 Difference]: With dead ends: 2919 [2024-11-23 23:53:57,206 INFO L226 Difference]: Without dead ends: 1357 [2024-11-23 23:53:57,217 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:53:57,218 INFO L435 NwaCegarLoop]: 895 mSDtfsCounter, 510 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 1285 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 [2024-11-23 23:53:57,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 1285 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:53:57,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2024-11-23 23:53:57,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 1357. [2024-11-23 23:53:57,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 1057 states have (on average 1.5818353831598864) internal successors, (1672), 1085 states have internal predecessors, (1672), 219 states have call successors, (219), 81 states have call predecessors, (219), 80 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2024-11-23 23:53:57,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 2166 transitions. [2024-11-23 23:53:57,345 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 2166 transitions. Word has length 132 [2024-11-23 23:53:57,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:57,346 INFO L471 AbstractCegarLoop]: Abstraction has 1357 states and 2166 transitions. [2024-11-23 23:53:57,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 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) [2024-11-23 23:53:57,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 2166 transitions. [2024-11-23 23:53:57,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-23 23:53:57,352 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:57,353 INFO L218 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] [2024-11-23 23:53:57,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-23 23:53:57,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:53:57,554 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:57,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:57,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1351148381, now seen corresponding path program 1 times [2024-11-23 23:53:57,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:57,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475023904] [2024-11-23 23:53:57,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:57,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:57,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:57,976 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-23 23:53:57,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:57,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475023904] [2024-11-23 23:53:57,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475023904] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:53:57,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923982502] [2024-11-23 23:53:57,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:57,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:53:57,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:53:57,980 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:53:57,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-23 23:53:58,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:58,453 INFO L256 TraceCheckSpWp]: Trace formula consists of 1324 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:53:58,458 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:53:58,508 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-23 23:53:58,512 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:53:58,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923982502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:58,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:53:58,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-23 23:53:58,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157662411] [2024-11-23 23:53:58,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:58,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:53:58,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:58,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:53:58,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:53:58,515 INFO L87 Difference]: Start difference. First operand 1357 states and 2166 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) [2024-11-23 23:53:58,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:58,912 INFO L93 Difference]: Finished difference Result 2759 states and 4464 transitions. [2024-11-23 23:53:58,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:53:58,913 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 [2024-11-23 23:53:58,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:58,929 INFO L225 Difference]: With dead ends: 2759 [2024-11-23 23:53:58,929 INFO L226 Difference]: Without dead ends: 1447 [2024-11-23 23:53:58,940 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:53:58,941 INFO L435 NwaCegarLoop]: 728 mSDtfsCounter, 144 mSDsluCounter, 1433 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 2161 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:58,941 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 2161 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:53:58,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1447 states. [2024-11-23 23:53:59,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1447 to 1435. [2024-11-23 23:53:59,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1435 states, 1133 states have (on average 1.6045895851721095) internal successors, (1818), 1161 states have internal predecessors, (1818), 219 states have call successors, (219), 83 states have call predecessors, (219), 82 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2024-11-23 23:53:59,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1435 states to 1435 states and 2312 transitions. [2024-11-23 23:53:59,069 INFO L78 Accepts]: Start accepts. Automaton has 1435 states and 2312 transitions. Word has length 155 [2024-11-23 23:53:59,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:59,070 INFO L471 AbstractCegarLoop]: Abstraction has 1435 states and 2312 transitions. [2024-11-23 23:53:59,070 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) [2024-11-23 23:53:59,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1435 states and 2312 transitions. [2024-11-23 23:53:59,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-23 23:53:59,077 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:59,078 INFO L218 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] [2024-11-23 23:53:59,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-23 23:53:59,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-23 23:53:59,283 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:59,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:59,283 INFO L85 PathProgramCache]: Analyzing trace with hash -2060094872, now seen corresponding path program 1 times [2024-11-23 23:53:59,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:59,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293895257] [2024-11-23 23:53:59,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:59,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:59,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:59,664 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-23 23:53:59,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:59,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293895257] [2024-11-23 23:53:59,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293895257] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:53:59,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392558856] [2024-11-23 23:53:59,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:59,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:53:59,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:53:59,668 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:53:59,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-23 23:54:00,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:00,188 INFO L256 TraceCheckSpWp]: Trace formula consists of 1329 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:54:00,193 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:54:00,247 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-23 23:54:00,247 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:54:00,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392558856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:00,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:54:00,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-23 23:54:00,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139319975] [2024-11-23 23:54:00,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:00,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:54:00,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:00,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:54:00,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:54:00,251 INFO L87 Difference]: Start difference. First operand 1435 states and 2312 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) [2024-11-23 23:54:00,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:00,647 INFO L93 Difference]: Finished difference Result 2921 states and 4758 transitions. [2024-11-23 23:54:00,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:54:00,649 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 [2024-11-23 23:54:00,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:00,665 INFO L225 Difference]: With dead ends: 2921 [2024-11-23 23:54:00,666 INFO L226 Difference]: Without dead ends: 1531 [2024-11-23 23:54:00,675 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:54:00,676 INFO L435 NwaCegarLoop]: 727 mSDtfsCounter, 142 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 2158 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:54:00,677 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 2158 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:54:00,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1531 states. [2024-11-23 23:54:00,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1531 to 1513. [2024-11-23 23:54:00,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1209 states have (on average 1.6244830438378826) internal successors, (1964), 1237 states have internal predecessors, (1964), 219 states have call successors, (219), 85 states have call predecessors, (219), 84 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2024-11-23 23:54:00,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2458 transitions. [2024-11-23 23:54:00,793 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2458 transitions. Word has length 160 [2024-11-23 23:54:00,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:00,794 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2458 transitions. [2024-11-23 23:54:00,796 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) [2024-11-23 23:54:00,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2458 transitions. [2024-11-23 23:54:00,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-23 23:54:00,803 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:00,804 INFO L218 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] [2024-11-23 23:54:00,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-23 23:54:01,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-23 23:54:01,005 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:54:01,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:01,006 INFO L85 PathProgramCache]: Analyzing trace with hash -804957864, now seen corresponding path program 1 times [2024-11-23 23:54:01,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:01,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776639579] [2024-11-23 23:54:01,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:01,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:01,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:01,388 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-23 23:54:01,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:01,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776639579] [2024-11-23 23:54:01,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776639579] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:54:01,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150456876] [2024-11-23 23:54:01,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:01,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:54:01,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:54:01,391 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:54:01,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-23 23:54:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:01,931 INFO L256 TraceCheckSpWp]: Trace formula consists of 1333 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:54:01,937 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:54:01,989 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-23 23:54:01,990 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:54:01,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150456876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:01,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:54:01,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-23 23:54:01,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818759219] [2024-11-23 23:54:01,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:01,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:54:01,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:01,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:54:01,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:54:01,992 INFO L87 Difference]: Start difference. First operand 1513 states and 2458 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) [2024-11-23 23:54:02,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:02,357 INFO L93 Difference]: Finished difference Result 3083 states and 5052 transitions. [2024-11-23 23:54:02,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:54:02,358 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 [2024-11-23 23:54:02,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:02,376 INFO L225 Difference]: With dead ends: 3083 [2024-11-23 23:54:02,376 INFO L226 Difference]: Without dead ends: 1615 [2024-11-23 23:54:02,385 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:54:02,386 INFO L435 NwaCegarLoop]: 726 mSDtfsCounter, 140 mSDsluCounter, 1429 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 2155 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 [2024-11-23 23:54:02,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 2155 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:54:02,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2024-11-23 23:54:02,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1591. [2024-11-23 23:54:02,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1591 states, 1285 states have (on average 1.6420233463035019) internal successors, (2110), 1313 states have internal predecessors, (2110), 219 states have call successors, (219), 87 states have call predecessors, (219), 86 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2024-11-23 23:54:02,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1591 states to 1591 states and 2604 transitions. [2024-11-23 23:54:02,549 INFO L78 Accepts]: Start accepts. Automaton has 1591 states and 2604 transitions. Word has length 164 [2024-11-23 23:54:02,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:02,550 INFO L471 AbstractCegarLoop]: Abstraction has 1591 states and 2604 transitions. [2024-11-23 23:54:02,550 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) [2024-11-23 23:54:02,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1591 states and 2604 transitions. [2024-11-23 23:54:02,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-23 23:54:02,559 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:02,559 INFO L218 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] [2024-11-23 23:54:02,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-23 23:54:02,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-23 23:54:02,764 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:54:02,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:02,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1570082813, now seen corresponding path program 1 times [2024-11-23 23:54:02,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:02,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238915385] [2024-11-23 23:54:02,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:02,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:02,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:03,285 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-23 23:54:03,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:03,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238915385] [2024-11-23 23:54:03,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238915385] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:54:03,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530626147] [2024-11-23 23:54:03,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:03,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:54:03,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:54:03,292 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:54:03,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-23 23:54:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:03,773 INFO L256 TraceCheckSpWp]: Trace formula consists of 1336 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:54:03,779 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:54:03,830 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-23 23:54:03,831 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:54:03,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530626147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:03,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:54:03,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-23 23:54:03,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990628160] [2024-11-23 23:54:03,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:03,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:54:03,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:03,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:54:03,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:54:03,833 INFO L87 Difference]: Start difference. First operand 1591 states and 2604 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) [2024-11-23 23:54:04,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:04,184 INFO L93 Difference]: Finished difference Result 3245 states and 5346 transitions. [2024-11-23 23:54:04,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:54:04,185 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 [2024-11-23 23:54:04,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:04,203 INFO L225 Difference]: With dead ends: 3245 [2024-11-23 23:54:04,203 INFO L226 Difference]: Without dead ends: 1699 [2024-11-23 23:54:04,212 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:54:04,213 INFO L435 NwaCegarLoop]: 723 mSDtfsCounter, 138 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 2145 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 [2024-11-23 23:54:04,214 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 2145 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:54:04,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2024-11-23 23:54:04,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1669. [2024-11-23 23:54:04,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1669 states, 1361 states have (on average 1.6576047024246878) internal successors, (2256), 1389 states have internal predecessors, (2256), 219 states have call successors, (219), 89 states have call predecessors, (219), 88 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2024-11-23 23:54:04,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1669 states to 1669 states and 2750 transitions. [2024-11-23 23:54:04,327 INFO L78 Accepts]: Start accepts. Automaton has 1669 states and 2750 transitions. Word has length 167 [2024-11-23 23:54:04,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:04,328 INFO L471 AbstractCegarLoop]: Abstraction has 1669 states and 2750 transitions. [2024-11-23 23:54:04,328 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) [2024-11-23 23:54:04,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1669 states and 2750 transitions. [2024-11-23 23:54:04,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-23 23:54:04,336 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:04,337 INFO L218 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] [2024-11-23 23:54:04,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-23 23:54:04,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-23 23:54:04,541 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:54:04,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:04,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1633465163, now seen corresponding path program 1 times [2024-11-23 23:54:04,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:04,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725302965] [2024-11-23 23:54:04,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:04,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:04,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:04,920 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-23 23:54:04,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:04,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725302965] [2024-11-23 23:54:04,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725302965] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:54:04,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314504871] [2024-11-23 23:54:04,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:04,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:54:04,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:54:04,924 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:54:04,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-23 23:54:05,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:05,398 INFO L256 TraceCheckSpWp]: Trace formula consists of 1332 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-23 23:54:05,403 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:54:05,831 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-23 23:54:05,831 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:54:05,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314504871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:05,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:54:05,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 14 [2024-11-23 23:54:05,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754895275] [2024-11-23 23:54:05,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:05,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:54:05,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:05,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:54:05,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:54:05,834 INFO L87 Difference]: Start difference. First operand 1669 states and 2750 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) [2024-11-23 23:54:09,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:09,988 INFO L93 Difference]: Finished difference Result 5206 states and 8725 transitions. [2024-11-23 23:54:09,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:54:09,988 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 [2024-11-23 23:54:09,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:10,026 INFO L225 Difference]: With dead ends: 5206 [2024-11-23 23:54:10,026 INFO L226 Difference]: Without dead ends: 3218 [2024-11-23 23:54:10,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2024-11-23 23:54:10,041 INFO L435 NwaCegarLoop]: 358 mSDtfsCounter, 1791 mSDsluCounter, 1856 mSDsCounter, 0 mSdLazyCounter, 3585 mSolverCounterSat, 433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1888 SdHoareTripleChecker+Valid, 2214 SdHoareTripleChecker+Invalid, 4018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 433 IncrementalHoareTripleChecker+Valid, 3585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:54:10,042 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1888 Valid, 2214 Invalid, 4018 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [433 Valid, 3585 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-23 23:54:10,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3218 states. [2024-11-23 23:54:10,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3218 to 3198. [2024-11-23 23:54:10,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3198 states, 2563 states have (on average 1.6609442060085837) internal successors, (4257), 2645 states have internal predecessors, (4257), 455 states have call successors, (455), 159 states have call predecessors, (455), 179 states have return successors, (599), 451 states have call predecessors, (599), 451 states have call successors, (599) [2024-11-23 23:54:10,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3198 states to 3198 states and 5311 transitions. [2024-11-23 23:54:10,258 INFO L78 Accepts]: Start accepts. Automaton has 3198 states and 5311 transitions. Word has length 169 [2024-11-23 23:54:10,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:10,259 INFO L471 AbstractCegarLoop]: Abstraction has 3198 states and 5311 transitions. [2024-11-23 23:54:10,259 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) [2024-11-23 23:54:10,259 INFO L276 IsEmpty]: Start isEmpty. Operand 3198 states and 5311 transitions. [2024-11-23 23:54:10,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-23 23:54:10,275 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:10,276 INFO L218 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] [2024-11-23 23:54:10,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-23 23:54:10,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-23 23:54:10,477 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:54:10,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:10,478 INFO L85 PathProgramCache]: Analyzing trace with hash -886601395, now seen corresponding path program 1 times [2024-11-23 23:54:10,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:10,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566934615] [2024-11-23 23:54:10,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:10,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:10,782 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-23 23:54:10,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:10,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566934615] [2024-11-23 23:54:10,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566934615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:10,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:54:10,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:54:10,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726344673] [2024-11-23 23:54:10,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:10,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:54:10,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:10,784 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:54:10,784 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:54:10,785 INFO L87 Difference]: Start difference. First operand 3198 states and 5311 transitions. Second operand has 8 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-23 23:54:11,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:11,101 INFO L93 Difference]: Finished difference Result 6222 states and 10362 transitions. [2024-11-23 23:54:11,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:54:11,102 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 3 states have call successors, (16), 2 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 172 [2024-11-23 23:54:11,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:11,130 INFO L225 Difference]: With dead ends: 6222 [2024-11-23 23:54:11,131 INFO L226 Difference]: Without dead ends: 2931 [2024-11-23 23:54:11,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:54:11,148 INFO L435 NwaCegarLoop]: 766 mSDtfsCounter, 33 mSDsluCounter, 4564 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 5330 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:54:11,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 5330 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:54:11,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2931 states. [2024-11-23 23:54:11,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2931 to 2919. [2024-11-23 23:54:11,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2919 states, 2384 states have (on average 1.6828859060402686) internal successors, (4012), 2453 states have internal predecessors, (4012), 375 states have call successors, (375), 147 states have call predecessors, (375), 159 states have return successors, (469), 366 states have call predecessors, (469), 371 states have call successors, (469) [2024-11-23 23:54:11,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2919 states to 2919 states and 4856 transitions. [2024-11-23 23:54:11,327 INFO L78 Accepts]: Start accepts. Automaton has 2919 states and 4856 transitions. Word has length 172 [2024-11-23 23:54:11,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:11,328 INFO L471 AbstractCegarLoop]: Abstraction has 2919 states and 4856 transitions. [2024-11-23 23:54:11,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-23 23:54:11,328 INFO L276 IsEmpty]: Start isEmpty. Operand 2919 states and 4856 transitions. [2024-11-23 23:54:11,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2024-11-23 23:54:11,352 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:11,352 INFO L218 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:54:11,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-23 23:54:11,353 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:54:11,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:11,353 INFO L85 PathProgramCache]: Analyzing trace with hash 381093850, now seen corresponding path program 1 times [2024-11-23 23:54:11,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:11,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669795137] [2024-11-23 23:54:11,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:11,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:11,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:12,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 36 proven. 99 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-23 23:54:12,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:12,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669795137] [2024-11-23 23:54:12,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669795137] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:54:12,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872000127] [2024-11-23 23:54:12,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:12,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:54:12,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:54:12,350 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:54:12,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-23 23:54:13,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:13,199 INFO L256 TraceCheckSpWp]: Trace formula consists of 3160 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-23 23:54:13,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:54:13,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 341 proven. 50 refuted. 0 times theorem prover too weak. 668 trivial. 0 not checked. [2024-11-23 23:54:13,687 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:54:15,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 57 proven. 93 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2024-11-23 23:54:15,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872000127] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:54:15,338 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:54:15,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 14] total 27 [2024-11-23 23:54:15,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617786108] [2024-11-23 23:54:15,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:54:15,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-23 23:54:15,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:15,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-23 23:54:15,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=611, Unknown=0, NotChecked=0, Total=702 [2024-11-23 23:54:15,345 INFO L87 Difference]: Start difference. First operand 2919 states and 4856 transitions. Second operand has 27 states, 25 states have (on average 14.56) internal successors, (364), 23 states have internal predecessors, (364), 17 states have call successors, (89), 8 states have call predecessors, (89), 14 states have return successors, (90), 20 states have call predecessors, (90), 17 states have call successors, (90) [2024-11-23 23:55:30,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:55:30,824 INFO L93 Difference]: Finished difference Result 44489 states and 79135 transitions. [2024-11-23 23:55:30,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 430 states. [2024-11-23 23:55:30,825 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 14.56) internal successors, (364), 23 states have internal predecessors, (364), 17 states have call successors, (89), 8 states have call predecessors, (89), 14 states have return successors, (90), 20 states have call predecessors, (90), 17 states have call successors, (90) Word has length 459 [2024-11-23 23:55:30,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:55:31,250 INFO L225 Difference]: With dead ends: 44489 [2024-11-23 23:55:31,250 INFO L226 Difference]: Without dead ends: 41510 [2024-11-23 23:55:31,393 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1478 GetRequests, 1029 SyntacticMatches, 4 SemanticMatches, 445 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92763 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=16349, Invalid=183013, Unknown=0, NotChecked=0, Total=199362 [2024-11-23 23:55:31,393 INFO L435 NwaCegarLoop]: 2387 mSDtfsCounter, 34929 mSDsluCounter, 21982 mSDsCounter, 0 mSdLazyCounter, 69099 mSolverCounterSat, 12972 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34943 SdHoareTripleChecker+Valid, 24369 SdHoareTripleChecker+Invalid, 82071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.7s SdHoareTripleChecker+Time, 12972 IncrementalHoareTripleChecker+Valid, 69099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:55:31,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34943 Valid, 24369 Invalid, 82071 Unknown, 0 Unchecked, 0.7s Time], IncrementalHoareTripleChecker [12972 Valid, 69099 Invalid, 0 Unknown, 0 Unchecked, 54.0s Time] [2024-11-23 23:55:31,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41510 states. [2024-11-23 23:55:34,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41510 to 33517. [2024-11-23 23:55:34,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33517 states, 27365 states have (on average 1.6620135209208844) internal successors, (45481), 28230 states have internal predecessors, (45481), 4054 states have call successors, (4054), 1747 states have call predecessors, (4054), 2097 states have return successors, (6439), 4115 states have call predecessors, (6439), 4036 states have call successors, (6439) [2024-11-23 23:55:35,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33517 states to 33517 states and 55974 transitions. [2024-11-23 23:55:35,099 INFO L78 Accepts]: Start accepts. Automaton has 33517 states and 55974 transitions. Word has length 459 [2024-11-23 23:55:35,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:55:35,099 INFO L471 AbstractCegarLoop]: Abstraction has 33517 states and 55974 transitions. [2024-11-23 23:55:35,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 14.56) internal successors, (364), 23 states have internal predecessors, (364), 17 states have call successors, (89), 8 states have call predecessors, (89), 14 states have return successors, (90), 20 states have call predecessors, (90), 17 states have call successors, (90) [2024-11-23 23:55:35,100 INFO L276 IsEmpty]: Start isEmpty. Operand 33517 states and 55974 transitions. [2024-11-23 23:55:35,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2024-11-23 23:55:35,291 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:55:35,291 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:55:35,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-23 23:55:35,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:55:35,495 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:55:35,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:55:35,496 INFO L85 PathProgramCache]: Analyzing trace with hash -727973890, now seen corresponding path program 1 times [2024-11-23 23:55:35,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:55:35,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138700379] [2024-11-23 23:55:35,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:35,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:55:35,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:37,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1227 backedges. 61 proven. 68 refuted. 0 times theorem prover too weak. 1098 trivial. 0 not checked. [2024-11-23 23:55:37,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:55:37,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138700379] [2024-11-23 23:55:37,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138700379] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:55:37,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430876807] [2024-11-23 23:55:37,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:37,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:55:37,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:55:37,499 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:55:37,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-23 23:55:38,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:38,517 INFO L256 TraceCheckSpWp]: Trace formula consists of 3311 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 23:55:38,533 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:55:38,634 INFO L134 CoverageAnalysis]: Checked inductivity of 1227 backedges. 651 proven. 0 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2024-11-23 23:55:38,635 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:55:38,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430876807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:55:38,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:55:38,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2024-11-23 23:55:38,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171531582] [2024-11-23 23:55:38,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:55:38,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:55:38,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:55:38,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:55:38,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:55:38,638 INFO L87 Difference]: Start difference. First operand 33517 states and 55974 transitions. Second operand has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 5 states have internal predecessors, (235), 2 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-23 23:55:40,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:55:40,455 INFO L93 Difference]: Finished difference Result 67415 states and 113242 transitions. [2024-11-23 23:55:40,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:55:40,456 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 5 states have internal predecessors, (235), 2 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) Word has length 511 [2024-11-23 23:55:40,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:55:40,708 INFO L225 Difference]: With dead ends: 67415 [2024-11-23 23:55:40,708 INFO L226 Difference]: Without dead ends: 33967 [2024-11-23 23:55:40,926 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 523 GetRequests, 512 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:55:40,927 INFO L435 NwaCegarLoop]: 782 mSDtfsCounter, 0 mSDsluCounter, 3119 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3901 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 [2024-11-23 23:55:40,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3901 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:55:40,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33967 states. [2024-11-23 23:55:43,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33967 to 33841. [2024-11-23 23:55:43,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33841 states, 27599 states have (on average 1.6564005942244284) internal successors, (45715), 28506 states have internal predecessors, (45715), 4054 states have call successors, (4054), 1747 states have call predecessors, (4054), 2187 states have return successors, (6616), 4163 states have call predecessors, (6616), 4036 states have call successors, (6616) [2024-11-23 23:55:43,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33841 states to 33841 states and 56385 transitions. [2024-11-23 23:55:43,722 INFO L78 Accepts]: Start accepts. Automaton has 33841 states and 56385 transitions. Word has length 511 [2024-11-23 23:55:43,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:55:43,725 INFO L471 AbstractCegarLoop]: Abstraction has 33841 states and 56385 transitions. [2024-11-23 23:55:43,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 5 states have internal predecessors, (235), 2 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-23 23:55:43,725 INFO L276 IsEmpty]: Start isEmpty. Operand 33841 states and 56385 transitions. [2024-11-23 23:55:44,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2024-11-23 23:55:44,213 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:55:44,214 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 12, 12, 12, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 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, 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] [2024-11-23 23:55:44,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-23 23:55:44,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-23 23:55:44,415 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:55:44,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:55:44,416 INFO L85 PathProgramCache]: Analyzing trace with hash -685143478, now seen corresponding path program 1 times [2024-11-23 23:55:44,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:55:44,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108755675] [2024-11-23 23:55:44,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:44,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:55:44,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:45,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 90 proven. 95 refuted. 0 times theorem prover too weak. 1432 trivial. 0 not checked. [2024-11-23 23:55:45,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:55:45,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108755675] [2024-11-23 23:55:45,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108755675] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:55:45,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358079663] [2024-11-23 23:55:45,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:45,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:55:45,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:55:45,234 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:55:45,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-23 23:55:45,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:45,926 INFO L256 TraceCheckSpWp]: Trace formula consists of 3420 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-23 23:55:45,942 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:55:46,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 1034 proven. 25 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2024-11-23 23:55:46,545 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:55:47,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 117 proven. 99 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2024-11-23 23:55:47,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358079663] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:55:47,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:55:47,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 24 [2024-11-23 23:55:47,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638470098] [2024-11-23 23:55:47,814 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:55:47,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-23 23:55:47,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:55:47,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-23 23:55:47,820 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2024-11-23 23:55:47,821 INFO L87 Difference]: Start difference. First operand 33841 states and 56385 transitions. Second operand has 24 states, 21 states have (on average 23.571428571428573) internal successors, (495), 22 states have internal predecessors, (495), 17 states have call successors, (123), 8 states have call predecessors, (123), 15 states have return successors, (122), 16 states have call predecessors, (122), 17 states have call successors, (122) [2024-11-23 23:56:07,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:56:07,355 INFO L93 Difference]: Finished difference Result 131924 states and 233870 transitions. [2024-11-23 23:56:07,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2024-11-23 23:56:07,356 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 23.571428571428573) internal successors, (495), 22 states have internal predecessors, (495), 17 states have call successors, (123), 8 states have call predecessors, (123), 15 states have return successors, (122), 16 states have call predecessors, (122), 17 states have call successors, (122) Word has length 549 [2024-11-23 23:56:07,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:56:08,143 INFO L225 Difference]: With dead ends: 131924 [2024-11-23 23:56:08,143 INFO L226 Difference]: Without dead ends: 98168 [2024-11-23 23:56:08,591 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1197 GetRequests, 1108 SyntacticMatches, 4 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2272 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1262, Invalid=6220, Unknown=0, NotChecked=0, Total=7482 [2024-11-23 23:56:08,592 INFO L435 NwaCegarLoop]: 644 mSDtfsCounter, 10236 mSDsluCounter, 5398 mSDsCounter, 0 mSdLazyCounter, 17011 mSolverCounterSat, 3670 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10236 SdHoareTripleChecker+Valid, 6042 SdHoareTripleChecker+Invalid, 20681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3670 IncrementalHoareTripleChecker+Valid, 17011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:56:08,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10236 Valid, 6042 Invalid, 20681 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3670 Valid, 17011 Invalid, 0 Unknown, 0 Unchecked, 11.2s Time] [2024-11-23 23:56:08,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98168 states. [2024-11-23 23:56:14,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98168 to 78914. [2024-11-23 23:56:14,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78914 states, 64042 states have (on average 1.6508697417319884) internal successors, (105725), 66385 states have internal predecessors, (105725), 9503 states have call successors, (9503), 4028 states have call predecessors, (9503), 5368 states have return successors, (15986), 9910 states have call predecessors, (15986), 9476 states have call successors, (15986) [2024-11-23 23:56:15,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78914 states to 78914 states and 131214 transitions. [2024-11-23 23:56:15,693 INFO L78 Accepts]: Start accepts. Automaton has 78914 states and 131214 transitions. Word has length 549 [2024-11-23 23:56:15,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:56:15,694 INFO L471 AbstractCegarLoop]: Abstraction has 78914 states and 131214 transitions. [2024-11-23 23:56:15,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 23.571428571428573) internal successors, (495), 22 states have internal predecessors, (495), 17 states have call successors, (123), 8 states have call predecessors, (123), 15 states have return successors, (122), 16 states have call predecessors, (122), 17 states have call successors, (122) [2024-11-23 23:56:15,695 INFO L276 IsEmpty]: Start isEmpty. Operand 78914 states and 131214 transitions. [2024-11-23 23:56:16,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2024-11-23 23:56:16,288 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:56:16,289 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 12, 12, 12, 11, 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, 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] [2024-11-23 23:56:16,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-23 23:56:16,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-23 23:56:16,490 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:56:16,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:56:16,490 INFO L85 PathProgramCache]: Analyzing trace with hash 2129462602, now seen corresponding path program 1 times [2024-11-23 23:56:16,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:56:16,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86133313] [2024-11-23 23:56:16,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:56:16,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:56:16,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:56:16,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1627 backedges. 92 proven. 106 refuted. 0 times theorem prover too weak. 1429 trivial. 0 not checked. [2024-11-23 23:56:16,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:56:16,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86133313] [2024-11-23 23:56:16,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86133313] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:56:16,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578935742] [2024-11-23 23:56:16,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:56:16,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:56:16,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:56:16,823 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:56:16,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6ec2d8-2d40-40ef-ba5a-d3626fe7c63e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-23 23:56:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:56:17,554 INFO L256 TraceCheckSpWp]: Trace formula consists of 3422 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 23:56:17,807 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:56:18,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1627 backedges. 780 proven. 4 refuted. 0 times theorem prover too weak. 843 trivial. 0 not checked. [2024-11-23 23:56:18,126 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:56:18,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1627 backedges. 92 proven. 106 refuted. 0 times theorem prover too weak. 1429 trivial. 0 not checked. [2024-11-23 23:56:18,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1578935742] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:56:18,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:56:18,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2024-11-23 23:56:18,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247941098] [2024-11-23 23:56:18,736 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:56:18,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-23 23:56:18,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:56:18,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-23 23:56:18,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2024-11-23 23:56:18,738 INFO L87 Difference]: Start difference. First operand 78914 states and 131214 transitions. Second operand has 18 states, 18 states have (on average 24.166666666666668) internal successors, (435), 18 states have internal predecessors, (435), 11 states have call successors, (100), 7 states have call predecessors, (100), 11 states have return successors, (101), 12 states have call predecessors, (101), 11 states have call successors, (101)