./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec14_product11.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec14_product11.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB --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 a3102ca0659fbbd15269b525dd7b096164ab7cd0af67dfa99033803ea46b0a8e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:46:47,119 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:46:47,208 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:46:47,221 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:46:47,222 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:46:47,257 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:46:47,259 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:46:47,259 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:46:47,260 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:46:47,260 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:46:47,261 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:46:47,261 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:46:47,262 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:46:47,262 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:46:47,262 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:46:47,262 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:46:47,263 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:46:47,263 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:46:47,263 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:46:47,263 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:46:47,263 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:46:47,263 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:46:47,264 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:46:47,264 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:46:47,264 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:46:47,264 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:46:47,264 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:46:47,264 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:46:47,264 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:46:47,264 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:46:47,265 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:46:47,265 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:46:47,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:46:47,266 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:46:47,266 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:46:47,266 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:46:47,266 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:46:47,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:46:47,266 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:46:47,266 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:46:47,267 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:46:47,267 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:46:47,267 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:46:47,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:46:47,267 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:46:47,267 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:46:47,267 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:46:47,267 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:46:47,267 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_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB 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 -> a3102ca0659fbbd15269b525dd7b096164ab7cd0af67dfa99033803ea46b0a8e [2024-11-28 03:46:47,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:46:47,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:46:47,553 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:46:47,555 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:46:47,555 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:46:47,559 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/elevator_spec14_product11.cil.c [2024-11-28 03:46:50,576 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/data/c415ef9fd/432d25f408624292a1f317c0d312f863/FLAGd7cc33fe6 [2024-11-28 03:46:51,003 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:46:51,004 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/sv-benchmarks/c/product-lines/elevator_spec14_product11.cil.c [2024-11-28 03:46:51,025 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/data/c415ef9fd/432d25f408624292a1f317c0d312f863/FLAGd7cc33fe6 [2024-11-28 03:46:51,041 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/data/c415ef9fd/432d25f408624292a1f317c0d312f863 [2024-11-28 03:46:51,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:46:51,045 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:46:51,047 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:46:51,047 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:46:51,052 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:46:51,053 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:46:51" (1/1) ... [2024-11-28 03:46:51,054 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20f031a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:46:51, skipping insertion in model container [2024-11-28 03:46:51,054 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:46:51" (1/1) ... [2024-11-28 03:46:51,111 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:46:51,334 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_678d610c-289e-4930-bba8-4a6927431237/sv-benchmarks/c/product-lines/elevator_spec14_product11.cil.c[3700,3713] [2024-11-28 03:46:51,776 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:46:51,795 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:46:51,807 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2024-11-28 03:46:51,809 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [86] [2024-11-28 03:46:51,809 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [186] [2024-11-28 03:46:51,809 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [195] [2024-11-28 03:46:51,811 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [315] [2024-11-28 03:46:51,811 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [355] [2024-11-28 03:46:51,811 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [705] [2024-11-28 03:46:51,811 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [1071] [2024-11-28 03:46:51,811 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1738] [2024-11-28 03:46:51,812 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3255] [2024-11-28 03:46:51,820 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_678d610c-289e-4930-bba8-4a6927431237/sv-benchmarks/c/product-lines/elevator_spec14_product11.cil.c[3700,3713] [2024-11-28 03:46:51,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:46:52,023 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:46:52,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:46:52 WrapperNode [2024-11-28 03:46:52,024 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:46:52,025 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:46:52,025 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:46:52,025 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:46:52,033 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:46:52" (1/1) ... [2024-11-28 03:46:52,071 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:46:52" (1/1) ... [2024-11-28 03:46:52,149 INFO L138 Inliner]: procedures = 90, calls = 331, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 1059 [2024-11-28 03:46:52,151 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:46:52,152 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:46:52,152 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:46:52,152 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:46:52,165 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:46:52" (1/1) ... [2024-11-28 03:46:52,165 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:46:52" (1/1) ... [2024-11-28 03:46:52,178 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:46:52" (1/1) ... [2024-11-28 03:46:52,222 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]. [2024-11-28 03:46:52,225 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:46:52" (1/1) ... [2024-11-28 03:46:52,226 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:46:52" (1/1) ... [2024-11-28 03:46:52,262 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:46:52" (1/1) ... [2024-11-28 03:46:52,268 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:46:52" (1/1) ... [2024-11-28 03:46:52,292 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:46:52" (1/1) ... [2024-11-28 03:46:52,301 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:46:52" (1/1) ... [2024-11-28 03:46:52,307 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:46:52" (1/1) ... [2024-11-28 03:46:52,322 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:46:52,328 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:46:52,328 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:46:52,329 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:46:52,330 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:46:52" (1/1) ... [2024-11-28 03:46:52,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:46:52,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:46:52,399 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:46:52,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:46:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:46:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-28 03:46:52,436 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-28 03:46:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-28 03:46:52,436 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-28 03:46:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-11-28 03:46:52,437 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-11-28 03:46:52,437 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-28 03:46:52,437 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-28 03:46:52,437 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2024-11-28 03:46:52,437 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2024-11-28 03:46:52,438 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-28 03:46:52,438 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-28 03:46:52,438 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-28 03:46:52,440 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-28 03:46:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-28 03:46:52,440 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-28 03:46:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-28 03:46:52,440 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-28 03:46:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-28 03:46:52,440 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-28 03:46:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-28 03:46:52,440 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-28 03:46:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-28 03:46:52,441 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-28 03:46:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-28 03:46:52,441 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-28 03:46:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2024-11-28 03:46:52,441 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2024-11-28 03:46:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-28 03:46:52,441 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-28 03:46:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-28 03:46:52,441 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-28 03:46:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-28 03:46:52,441 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-28 03:46:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-28 03:46:52,441 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-28 03:46:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:46:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:46:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 03:46:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 03:46:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 03:46:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 03:46:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 03:46:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-28 03:46:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-28 03:46:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-28 03:46:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-28 03:46:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-28 03:46:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-28 03:46:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-28 03:46:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-28 03:46:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-28 03:46:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-28 03:46:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-28 03:46:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-28 03:46:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-28 03:46:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-28 03:46:52,445 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-28 03:46:52,445 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-28 03:46:52,446 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-28 03:46:52,446 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-28 03:46:52,446 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-28 03:46:52,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:46:52,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:46:52,446 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-28 03:46:52,446 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-28 03:46:52,697 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:46:52,700 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:46:54,280 INFO L? ?]: Removed 434 outVars from TransFormulas that were not future-live. [2024-11-28 03:46:54,281 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:46:54,304 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:46:54,304 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:46:54,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:46:54 BoogieIcfgContainer [2024-11-28 03:46:54,305 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:46:54,311 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:46:54,312 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:46:54,316 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:46:54,316 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:46:51" (1/3) ... [2024-11-28 03:46:54,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69abe2e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:46:54, skipping insertion in model container [2024-11-28 03:46:54,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:46:52" (2/3) ... [2024-11-28 03:46:54,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69abe2e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:46:54, skipping insertion in model container [2024-11-28 03:46:54,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:46:54" (3/3) ... [2024-11-28 03:46:54,319 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product11.cil.c [2024-11-28 03:46:54,335 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:46:54,338 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec14_product11.cil.c that has 23 procedures, 525 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:46:54,433 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:46:54,449 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;@706d07b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:46:54,449 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:46:54,457 INFO L276 IsEmpty]: Start isEmpty. Operand has 525 states, 410 states have (on average 1.6853658536585365) internal successors, (691), 426 states have internal predecessors, (691), 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) [2024-11-28 03:46:54,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-28 03:46:54,496 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:54,499 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] [2024-11-28 03:46:54,499 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:54,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:54,507 INFO L85 PathProgramCache]: Analyzing trace with hash 673365048, now seen corresponding path program 1 times [2024-11-28 03:46:54,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:54,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874058763] [2024-11-28 03:46:54,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:54,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:54,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:55,322 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 03:46:55,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:55,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874058763] [2024-11-28 03:46:55,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874058763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:55,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:46:55,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:46:55,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091224242] [2024-11-28 03:46:55,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:55,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:46:55,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:55,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:46:55,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:46:55,361 INFO L87 Difference]: Start difference. First operand has 525 states, 410 states have (on average 1.6853658536585365) internal successors, (691), 426 states have internal predecessors, (691), 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) [2024-11-28 03:46:55,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:55,645 INFO L93 Difference]: Finished difference Result 1043 states and 1746 transitions. [2024-11-28 03:46:55,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:46:55,648 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 [2024-11-28 03:46:55,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:55,671 INFO L225 Difference]: With dead ends: 1043 [2024-11-28 03:46:55,671 INFO L226 Difference]: Without dead ends: 520 [2024-11-28 03:46:55,679 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 [2024-11-28 03:46:55,681 INFO L435 NwaCegarLoop]: 856 mSDtfsCounter, 6 mSDsluCounter, 1706 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2562 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:55,682 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2562 Invalid, 42 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:46:55,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-28 03:46:55,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 520. [2024-11-28 03:46:55,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 406 states have (on average 1.6748768472906403) internal successors, (680), 421 states have internal predecessors, (680), 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) [2024-11-28 03:46:55,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 861 transitions. [2024-11-28 03:46:55,810 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 861 transitions. Word has length 101 [2024-11-28 03:46:55,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:55,812 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 861 transitions. [2024-11-28 03:46:55,812 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) [2024-11-28 03:46:55,813 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 861 transitions. [2024-11-28 03:46:55,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-28 03:46:55,825 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:55,826 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] [2024-11-28 03:46:55,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:46:55,826 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:55,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:55,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1749826699, now seen corresponding path program 1 times [2024-11-28 03:46:55,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:55,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263052598] [2024-11-28 03:46:55,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:55,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:55,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:56,161 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 03:46:56,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:56,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263052598] [2024-11-28 03:46:56,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263052598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:56,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:46:56,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:46:56,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005323910] [2024-11-28 03:46:56,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:56,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:46:56,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:56,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:46:56,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:46:56,165 INFO L87 Difference]: Start difference. First operand 520 states and 861 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) [2024-11-28 03:46:56,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:56,318 INFO L93 Difference]: Finished difference Result 1023 states and 1699 transitions. [2024-11-28 03:46:56,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:46:56,319 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 [2024-11-28 03:46:56,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:56,326 INFO L225 Difference]: With dead ends: 1023 [2024-11-28 03:46:56,326 INFO L226 Difference]: Without dead ends: 520 [2024-11-28 03:46:56,333 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 [2024-11-28 03:46:56,334 INFO L435 NwaCegarLoop]: 847 mSDtfsCounter, 4 mSDsluCounter, 1687 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2534 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:56,334 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2534 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:46:56,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-28 03:46:56,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 520. [2024-11-28 03:46:56,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 406 states have (on average 1.6724137931034482) internal successors, (679), 421 states have internal predecessors, (679), 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) [2024-11-28 03:46:56,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 860 transitions. [2024-11-28 03:46:56,395 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 860 transitions. Word has length 102 [2024-11-28 03:46:56,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:56,395 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 860 transitions. [2024-11-28 03:46:56,396 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) [2024-11-28 03:46:56,396 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 860 transitions. [2024-11-28 03:46:56,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-28 03:46:56,404 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:56,405 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] [2024-11-28 03:46:56,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:46:56,405 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:56,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:56,406 INFO L85 PathProgramCache]: Analyzing trace with hash 219558676, now seen corresponding path program 1 times [2024-11-28 03:46:56,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:56,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052068423] [2024-11-28 03:46:56,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:56,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:56,650 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 03:46:56,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:56,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052068423] [2024-11-28 03:46:56,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052068423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:56,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:46:56,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:46:56,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935939650] [2024-11-28 03:46:56,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:56,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:46:56,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:56,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:46:56,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:46:56,653 INFO L87 Difference]: Start difference. First operand 520 states and 860 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) [2024-11-28 03:46:56,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:56,777 INFO L93 Difference]: Finished difference Result 1023 states and 1698 transitions. [2024-11-28 03:46:56,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:46:56,778 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 [2024-11-28 03:46:56,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:56,787 INFO L225 Difference]: With dead ends: 1023 [2024-11-28 03:46:56,787 INFO L226 Difference]: Without dead ends: 520 [2024-11-28 03:46:56,792 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 [2024-11-28 03:46:56,795 INFO L435 NwaCegarLoop]: 847 mSDtfsCounter, 3 mSDsluCounter, 1687 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2534 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 [2024-11-28 03:46:56,796 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2534 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:46:56,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-28 03:46:56,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 520. [2024-11-28 03:46:56,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 406 states have (on average 1.6699507389162562) internal successors, (678), 421 states have internal predecessors, (678), 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) [2024-11-28 03:46:56,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 859 transitions. [2024-11-28 03:46:56,853 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 859 transitions. Word has length 103 [2024-11-28 03:46:56,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:56,855 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 859 transitions. [2024-11-28 03:46:56,855 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) [2024-11-28 03:46:56,855 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 859 transitions. [2024-11-28 03:46:56,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-28 03:46:56,862 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:56,862 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] [2024-11-28 03:46:56,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:46:56,863 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:56,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:56,864 INFO L85 PathProgramCache]: Analyzing trace with hash -514950617, now seen corresponding path program 1 times [2024-11-28 03:46:56,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:56,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973159241] [2024-11-28 03:46:56,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:56,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:56,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:57,089 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 03:46:57,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:57,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973159241] [2024-11-28 03:46:57,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973159241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:57,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:46:57,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:46:57,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695014982] [2024-11-28 03:46:57,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:57,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:46:57,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:57,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:46:57,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:46:57,091 INFO L87 Difference]: Start difference. First operand 520 states and 859 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) [2024-11-28 03:46:57,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:57,191 INFO L93 Difference]: Finished difference Result 1023 states and 1697 transitions. [2024-11-28 03:46:57,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:46:57,192 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 [2024-11-28 03:46:57,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:57,196 INFO L225 Difference]: With dead ends: 1023 [2024-11-28 03:46:57,196 INFO L226 Difference]: Without dead ends: 520 [2024-11-28 03:46:57,199 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 [2024-11-28 03:46:57,200 INFO L435 NwaCegarLoop]: 847 mSDtfsCounter, 2 mSDsluCounter, 1687 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2534 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 [2024-11-28 03:46:57,200 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2534 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:46:57,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-28 03:46:57,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 520. [2024-11-28 03:46:57,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 406 states have (on average 1.667487684729064) internal successors, (677), 421 states have internal predecessors, (677), 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) [2024-11-28 03:46:57,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 858 transitions. [2024-11-28 03:46:57,241 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 858 transitions. Word has length 104 [2024-11-28 03:46:57,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:57,242 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 858 transitions. [2024-11-28 03:46:57,243 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) [2024-11-28 03:46:57,243 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 858 transitions. [2024-11-28 03:46:57,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-28 03:46:57,246 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:57,246 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] [2024-11-28 03:46:57,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:46:57,247 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:57,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:57,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1944224240, now seen corresponding path program 1 times [2024-11-28 03:46:57,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:57,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394947309] [2024-11-28 03:46:57,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:57,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:57,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:57,449 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 03:46:57,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:57,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394947309] [2024-11-28 03:46:57,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394947309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:57,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:46:57,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:46:57,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19920138] [2024-11-28 03:46:57,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:57,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:46:57,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:57,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:46:57,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:46:57,452 INFO L87 Difference]: Start difference. First operand 520 states and 858 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) [2024-11-28 03:46:57,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:57,525 INFO L93 Difference]: Finished difference Result 1023 states and 1696 transitions. [2024-11-28 03:46:57,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:46:57,527 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 [2024-11-28 03:46:57,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:57,533 INFO L225 Difference]: With dead ends: 1023 [2024-11-28 03:46:57,533 INFO L226 Difference]: Without dead ends: 520 [2024-11-28 03:46:57,536 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 [2024-11-28 03:46:57,539 INFO L435 NwaCegarLoop]: 847 mSDtfsCounter, 1 mSDsluCounter, 1687 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2534 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 [2024-11-28 03:46:57,539 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2534 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:46:57,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-28 03:46:57,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 520. [2024-11-28 03:46:57,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 406 states have (on average 1.6650246305418719) internal successors, (676), 421 states have internal predecessors, (676), 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) [2024-11-28 03:46:57,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 857 transitions. [2024-11-28 03:46:57,588 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 857 transitions. Word has length 105 [2024-11-28 03:46:57,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:57,589 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 857 transitions. [2024-11-28 03:46:57,589 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) [2024-11-28 03:46:57,589 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 857 transitions. [2024-11-28 03:46:57,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-28 03:46:57,593 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:57,593 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] [2024-11-28 03:46:57,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:46:57,593 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:57,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:57,594 INFO L85 PathProgramCache]: Analyzing trace with hash 328392643, now seen corresponding path program 1 times [2024-11-28 03:46:57,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:57,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459027946] [2024-11-28 03:46:57,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:57,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:57,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:57,890 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 03:46:57,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:57,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459027946] [2024-11-28 03:46:57,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459027946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:57,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:46:57,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:46:57,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284349295] [2024-11-28 03:46:57,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:57,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:46:57,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:57,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:46:57,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:46:57,893 INFO L87 Difference]: Start difference. First operand 520 states and 857 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) [2024-11-28 03:46:58,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:58,039 INFO L93 Difference]: Finished difference Result 1034 states and 1713 transitions. [2024-11-28 03:46:58,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:46:58,040 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 [2024-11-28 03:46:58,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:58,046 INFO L225 Difference]: With dead ends: 1034 [2024-11-28 03:46:58,046 INFO L226 Difference]: Without dead ends: 535 [2024-11-28 03:46:58,050 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 [2024-11-28 03:46:58,052 INFO L435 NwaCegarLoop]: 844 mSDtfsCounter, 91 mSDsluCounter, 4135 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 4979 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 [2024-11-28 03:46:58,053 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 4979 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:46:58,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-11-28 03:46:58,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 533. [2024-11-28 03:46:58,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 416 states have (on average 1.6610576923076923) internal successors, (691), 433 states have internal predecessors, (691), 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) [2024-11-28 03:46:58,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 877 transitions. [2024-11-28 03:46:58,095 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 877 transitions. Word has length 106 [2024-11-28 03:46:58,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:58,096 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 877 transitions. [2024-11-28 03:46:58,096 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) [2024-11-28 03:46:58,096 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 877 transitions. [2024-11-28 03:46:58,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-28 03:46:58,100 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:58,100 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] [2024-11-28 03:46:58,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:46:58,100 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:58,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:58,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1266924258, now seen corresponding path program 1 times [2024-11-28 03:46:58,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:58,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647908868] [2024-11-28 03:46:58,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:58,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:58,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:58,268 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 03:46:58,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:58,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647908868] [2024-11-28 03:46:58,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647908868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:58,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:46:58,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:46:58,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439749865] [2024-11-28 03:46:58,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:58,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:46:58,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:58,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:46:58,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:46:58,271 INFO L87 Difference]: Start difference. First operand 533 states and 877 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) [2024-11-28 03:46:58,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:58,367 INFO L93 Difference]: Finished difference Result 1041 states and 1724 transitions. [2024-11-28 03:46:58,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:46:58,368 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 [2024-11-28 03:46:58,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:58,372 INFO L225 Difference]: With dead ends: 1041 [2024-11-28 03:46:58,372 INFO L226 Difference]: Without dead ends: 529 [2024-11-28 03:46:58,375 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 [2024-11-28 03:46:58,376 INFO L435 NwaCegarLoop]: 845 mSDtfsCounter, 1 mSDsluCounter, 1684 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2529 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:58,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2529 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:46:58,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2024-11-28 03:46:58,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 529. [2024-11-28 03:46:58,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 414 states have (on average 1.6618357487922706) internal successors, (688), 430 states have internal predecessors, (688), 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) [2024-11-28 03:46:58,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 870 transitions. [2024-11-28 03:46:58,408 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 870 transitions. Word has length 106 [2024-11-28 03:46:58,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:58,408 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 870 transitions. [2024-11-28 03:46:58,408 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) [2024-11-28 03:46:58,411 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 870 transitions. [2024-11-28 03:46:58,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 03:46:58,414 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:58,416 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] [2024-11-28 03:46:58,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:46:58,417 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:58,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:58,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1975944126, now seen corresponding path program 1 times [2024-11-28 03:46:58,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:58,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613453567] [2024-11-28 03:46:58,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:58,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:58,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:58,651 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 03:46:58,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:58,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613453567] [2024-11-28 03:46:58,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613453567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:58,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:46:58,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:46:58,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012962635] [2024-11-28 03:46:58,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:58,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:46:58,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:58,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:46:58,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:46:58,653 INFO L87 Difference]: Start difference. First operand 529 states and 870 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) [2024-11-28 03:46:59,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:59,030 INFO L93 Difference]: Finished difference Result 1084 states and 1796 transitions. [2024-11-28 03:46:59,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:46:59,031 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 [2024-11-28 03:46:59,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:59,037 INFO L225 Difference]: With dead ends: 1084 [2024-11-28 03:46:59,037 INFO L226 Difference]: Without dead ends: 561 [2024-11-28 03:46:59,040 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 [2024-11-28 03:46:59,041 INFO L435 NwaCegarLoop]: 819 mSDtfsCounter, 72 mSDsluCounter, 3197 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 4016 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:59,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 4016 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:46:59,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2024-11-28 03:46:59,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 534. [2024-11-28 03:46:59,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 419 states have (on average 1.6467780429594272) internal successors, (690), 434 states have internal predecessors, (690), 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) [2024-11-28 03:46:59,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 871 transitions. [2024-11-28 03:46:59,075 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 871 transitions. Word has length 107 [2024-11-28 03:46:59,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:59,076 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 871 transitions. [2024-11-28 03:46:59,076 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) [2024-11-28 03:46:59,076 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 871 transitions. [2024-11-28 03:46:59,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-28 03:46:59,080 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:59,080 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] [2024-11-28 03:46:59,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:46:59,080 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:59,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:59,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1066719930, now seen corresponding path program 1 times [2024-11-28 03:46:59,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:59,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125100376] [2024-11-28 03:46:59,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:59,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:59,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:59,288 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 03:46:59,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:59,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125100376] [2024-11-28 03:46:59,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125100376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:59,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:46:59,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:46:59,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786439127] [2024-11-28 03:46:59,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:59,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:46:59,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:59,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:46:59,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:46:59,291 INFO L87 Difference]: Start difference. First operand 534 states and 871 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) [2024-11-28 03:46:59,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:59,567 INFO L93 Difference]: Finished difference Result 1035 states and 1691 transitions. [2024-11-28 03:46:59,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:46:59,568 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 [2024-11-28 03:46:59,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:59,573 INFO L225 Difference]: With dead ends: 1035 [2024-11-28 03:46:59,573 INFO L226 Difference]: Without dead ends: 552 [2024-11-28 03:46:59,576 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 [2024-11-28 03:46:59,577 INFO L435 NwaCegarLoop]: 808 mSDtfsCounter, 56 mSDsluCounter, 3185 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 3993 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:59,577 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 3993 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:46:59,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-11-28 03:46:59,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 534. [2024-11-28 03:46:59,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 419 states have (on average 1.6372315035799523) internal successors, (686), 434 states have internal predecessors, (686), 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) [2024-11-28 03:46:59,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 867 transitions. [2024-11-28 03:46:59,615 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 867 transitions. Word has length 108 [2024-11-28 03:46:59,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:59,615 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 867 transitions. [2024-11-28 03:46:59,616 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) [2024-11-28 03:46:59,616 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 867 transitions. [2024-11-28 03:46:59,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-28 03:46:59,619 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:59,619 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, 1, 1, 1] [2024-11-28 03:46:59,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:46:59,619 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:59,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:59,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1780884089, now seen corresponding path program 1 times [2024-11-28 03:46:59,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:59,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192210226] [2024-11-28 03:46:59,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:59,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:59,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:59,810 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 03:46:59,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:59,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192210226] [2024-11-28 03:46:59,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192210226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:59,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:46:59,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:46:59,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390225842] [2024-11-28 03:46:59,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:59,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:46:59,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:59,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:46:59,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:46:59,813 INFO L87 Difference]: Start difference. First operand 534 states and 867 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) [2024-11-28 03:47:00,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:47:00,082 INFO L93 Difference]: Finished difference Result 1035 states and 1687 transitions. [2024-11-28 03:47:00,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:47:00,083 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 [2024-11-28 03:47:00,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:47:00,087 INFO L225 Difference]: With dead ends: 1035 [2024-11-28 03:47:00,088 INFO L226 Difference]: Without dead ends: 552 [2024-11-28 03:47:00,091 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 [2024-11-28 03:47:00,091 INFO L435 NwaCegarLoop]: 807 mSDtfsCounter, 55 mSDsluCounter, 3181 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 3988 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:47:00,092 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 3988 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:47:00,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-11-28 03:47:00,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 534. [2024-11-28 03:47:00,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 419 states have (on average 1.6276849642004774) internal successors, (682), 434 states have internal predecessors, (682), 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) [2024-11-28 03:47:00,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 863 transitions. [2024-11-28 03:47:00,118 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 863 transitions. Word has length 109 [2024-11-28 03:47:00,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:47:00,119 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 863 transitions. [2024-11-28 03:47:00,119 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) [2024-11-28 03:47:00,119 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 863 transitions. [2024-11-28 03:47:00,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-28 03:47:00,123 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:47:00,123 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] [2024-11-28 03:47:00,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:47:00,123 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:47:00,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:00,124 INFO L85 PathProgramCache]: Analyzing trace with hash 7322119, now seen corresponding path program 1 times [2024-11-28 03:47:00,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:00,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143971194] [2024-11-28 03:47:00,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:00,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:00,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:00,326 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 03:47:00,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:00,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143971194] [2024-11-28 03:47:00,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143971194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:47:00,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:47:00,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:47:00,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689286793] [2024-11-28 03:47:00,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:47:00,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:47:00,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:00,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:47:00,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:47:00,328 INFO L87 Difference]: Start difference. First operand 534 states and 863 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) [2024-11-28 03:47:00,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:47:00,441 INFO L93 Difference]: Finished difference Result 1026 states and 1669 transitions. [2024-11-28 03:47:00,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:47:00,443 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 [2024-11-28 03:47:00,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:47:00,449 INFO L225 Difference]: With dead ends: 1026 [2024-11-28 03:47:00,449 INFO L226 Difference]: Without dead ends: 522 [2024-11-28 03:47:00,453 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 [2024-11-28 03:47:00,455 INFO L435 NwaCegarLoop]: 833 mSDtfsCounter, 94 mSDsluCounter, 4069 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 4902 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 [2024-11-28 03:47:00,455 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 4902 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:47:00,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2024-11-28 03:47:00,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 513. [2024-11-28 03:47:00,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 398 states have (on average 1.620603015075377) internal successors, (645), 413 states have internal predecessors, (645), 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) [2024-11-28 03:47:00,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 826 transitions. [2024-11-28 03:47:00,501 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 826 transitions. Word has length 109 [2024-11-28 03:47:00,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:47:00,502 INFO L471 AbstractCegarLoop]: Abstraction has 513 states and 826 transitions. [2024-11-28 03:47:00,502 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) [2024-11-28 03:47:00,502 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 826 transitions. [2024-11-28 03:47:00,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-28 03:47:00,505 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:47:00,506 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] [2024-11-28 03:47:00,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:47:00,506 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:47:00,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:00,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1280479701, now seen corresponding path program 1 times [2024-11-28 03:47:00,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:00,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943049897] [2024-11-28 03:47:00,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:00,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:00,686 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 03:47:00,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:00,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943049897] [2024-11-28 03:47:00,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943049897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:47:00,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:47:00,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:47:00,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859936297] [2024-11-28 03:47:00,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:47:00,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:47:00,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:00,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:47:00,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:47:00,688 INFO L87 Difference]: Start difference. First operand 513 states and 826 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) [2024-11-28 03:47:00,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:47:00,835 INFO L93 Difference]: Finished difference Result 1005 states and 1632 transitions. [2024-11-28 03:47:00,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:47:00,836 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 [2024-11-28 03:47:00,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:47:00,840 INFO L225 Difference]: With dead ends: 1005 [2024-11-28 03:47:00,840 INFO L226 Difference]: Without dead ends: 522 [2024-11-28 03:47:00,843 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 [2024-11-28 03:47:00,844 INFO L435 NwaCegarLoop]: 808 mSDtfsCounter, 39 mSDsluCounter, 3185 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3993 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 [2024-11-28 03:47:00,844 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3993 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:47:00,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2024-11-28 03:47:00,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 513. [2024-11-28 03:47:00,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 398 states have (on average 1.6180904522613064) internal successors, (644), 413 states have internal predecessors, (644), 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) [2024-11-28 03:47:00,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 825 transitions. [2024-11-28 03:47:00,871 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 825 transitions. Word has length 110 [2024-11-28 03:47:00,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:47:00,871 INFO L471 AbstractCegarLoop]: Abstraction has 513 states and 825 transitions. [2024-11-28 03:47:00,871 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) [2024-11-28 03:47:00,872 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 825 transitions. [2024-11-28 03:47:00,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-28 03:47:00,875 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:47:00,875 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] [2024-11-28 03:47:00,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:47:00,876 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:47:00,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:00,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1783156020, now seen corresponding path program 1 times [2024-11-28 03:47:00,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:00,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743418096] [2024-11-28 03:47:00,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:00,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:00,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:01,090 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 03:47:01,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:01,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743418096] [2024-11-28 03:47:01,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743418096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:47:01,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:47:01,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:47:01,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562587038] [2024-11-28 03:47:01,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:47:01,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:47:01,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:01,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:47:01,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:47:01,093 INFO L87 Difference]: Start difference. First operand 513 states and 825 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) [2024-11-28 03:47:01,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:47:01,252 INFO L93 Difference]: Finished difference Result 1005 states and 1631 transitions. [2024-11-28 03:47:01,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:47:01,253 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 [2024-11-28 03:47:01,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:47:01,258 INFO L225 Difference]: With dead ends: 1005 [2024-11-28 03:47:01,259 INFO L226 Difference]: Without dead ends: 522 [2024-11-28 03:47:01,262 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 [2024-11-28 03:47:01,266 INFO L435 NwaCegarLoop]: 808 mSDtfsCounter, 38 mSDsluCounter, 3185 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3993 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 [2024-11-28 03:47:01,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 3993 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:47:01,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2024-11-28 03:47:01,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 513. [2024-11-28 03:47:01,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 398 states have (on average 1.6155778894472361) internal successors, (643), 413 states have internal predecessors, (643), 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) [2024-11-28 03:47:01,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 824 transitions. [2024-11-28 03:47:01,293 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 824 transitions. Word has length 111 [2024-11-28 03:47:01,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:47:01,294 INFO L471 AbstractCegarLoop]: Abstraction has 513 states and 824 transitions. [2024-11-28 03:47:01,294 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) [2024-11-28 03:47:01,294 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 824 transitions. [2024-11-28 03:47:01,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-28 03:47:01,297 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:47:01,298 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] [2024-11-28 03:47:01,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:47:01,298 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:47:01,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:01,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1991706990, now seen corresponding path program 1 times [2024-11-28 03:47:01,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:01,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669114549] [2024-11-28 03:47:01,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:01,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:01,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:01,410 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 03:47:01,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:01,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669114549] [2024-11-28 03:47:01,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669114549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:47:01,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:47:01,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:47:01,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701255182] [2024-11-28 03:47:01,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:47:01,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:47:01,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:01,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:47:01,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:47:01,412 INFO L87 Difference]: Start difference. First operand 513 states and 824 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), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-28 03:47:01,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:47:01,493 INFO L93 Difference]: Finished difference Result 1005 states and 1630 transitions. [2024-11-28 03:47:01,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:47:01,494 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), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 112 [2024-11-28 03:47:01,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:47:01,499 INFO L225 Difference]: With dead ends: 1005 [2024-11-28 03:47:01,499 INFO L226 Difference]: Without dead ends: 522 [2024-11-28 03:47:01,502 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 [2024-11-28 03:47:01,502 INFO L435 NwaCegarLoop]: 807 mSDtfsCounter, 45 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2367 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:47:01,503 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 2367 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:47:01,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2024-11-28 03:47:01,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 513. [2024-11-28 03:47:01,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 398 states have (on average 1.6130653266331658) internal successors, (642), 413 states have internal predecessors, (642), 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) [2024-11-28 03:47:01,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 823 transitions. [2024-11-28 03:47:01,528 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 823 transitions. Word has length 112 [2024-11-28 03:47:01,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:47:01,529 INFO L471 AbstractCegarLoop]: Abstraction has 513 states and 823 transitions. [2024-11-28 03:47:01,529 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), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-28 03:47:01,529 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 823 transitions. [2024-11-28 03:47:01,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-28 03:47:01,532 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:47:01,533 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] [2024-11-28 03:47:01,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:47:01,533 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:47:01,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:01,534 INFO L85 PathProgramCache]: Analyzing trace with hash 978404112, now seen corresponding path program 1 times [2024-11-28 03:47:01,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:01,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394623357] [2024-11-28 03:47:01,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:01,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:01,666 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 03:47:01,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:01,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394623357] [2024-11-28 03:47:01,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394623357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:47:01,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:47:01,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:47:01,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289431444] [2024-11-28 03:47:01,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:47:01,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:47:01,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:01,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:47:01,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:47:01,668 INFO L87 Difference]: Start difference. First operand 513 states and 823 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) [2024-11-28 03:47:01,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:47:01,740 INFO L93 Difference]: Finished difference Result 992 states and 1609 transitions. [2024-11-28 03:47:01,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:47:01,741 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 [2024-11-28 03:47:01,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:47:01,745 INFO L225 Difference]: With dead ends: 992 [2024-11-28 03:47:01,746 INFO L226 Difference]: Without dead ends: 515 [2024-11-28 03:47:01,749 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 [2024-11-28 03:47:01,749 INFO L435 NwaCegarLoop]: 786 mSDtfsCounter, 15 mSDsluCounter, 1557 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2343 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:47:01,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2343 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:47:01,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2024-11-28 03:47:01,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 515. [2024-11-28 03:47:01,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 400 states have (on average 1.6075) internal successors, (643), 415 states have internal predecessors, (643), 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) [2024-11-28 03:47:01,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 824 transitions. [2024-11-28 03:47:01,777 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 824 transitions. Word has length 112 [2024-11-28 03:47:01,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:47:01,777 INFO L471 AbstractCegarLoop]: Abstraction has 515 states and 824 transitions. [2024-11-28 03:47:01,778 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) [2024-11-28 03:47:01,778 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 824 transitions. [2024-11-28 03:47:01,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-28 03:47:01,781 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:47:01,782 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] [2024-11-28 03:47:01,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:47:01,782 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:47:01,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:01,783 INFO L85 PathProgramCache]: Analyzing trace with hash 561189089, now seen corresponding path program 1 times [2024-11-28 03:47:01,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:01,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554124720] [2024-11-28 03:47:01,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:01,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:01,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:01,973 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 03:47:01,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:01,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554124720] [2024-11-28 03:47:01,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554124720] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:47:01,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746860972] [2024-11-28 03:47:01,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:01,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:47:01,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:47:01,976 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:47:01,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:47:02,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:02,431 INFO L256 TraceCheckSpWp]: Trace formula consists of 1208 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:47:02,441 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:47:02,643 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 03:47:02,643 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:47:02,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746860972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:47:02,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:47:02,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-28 03:47:02,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197646019] [2024-11-28 03:47:02,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:47:02,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:47:02,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:02,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:47:02,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:47:02,646 INFO L87 Difference]: Start difference. First operand 515 states and 824 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) [2024-11-28 03:47:03,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:47:03,625 INFO L93 Difference]: Finished difference Result 995 states and 1635 transitions. [2024-11-28 03:47:03,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:47:03,626 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 [2024-11-28 03:47:03,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:47:03,632 INFO L225 Difference]: With dead ends: 995 [2024-11-28 03:47:03,632 INFO L226 Difference]: Without dead ends: 523 [2024-11-28 03:47:03,637 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 [2024-11-28 03:47:03,638 INFO L435 NwaCegarLoop]: 785 mSDtfsCounter, 769 mSDsluCounter, 1214 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 1999 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 [2024-11-28 03:47:03,639 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 1999 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:47:03,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2024-11-28 03:47:03,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 523. [2024-11-28 03:47:03,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 407 states have (on average 1.6093366093366093) internal successors, (655), 422 states have internal predecessors, (655), 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) [2024-11-28 03:47:03,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 837 transitions. [2024-11-28 03:47:03,682 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 837 transitions. Word has length 113 [2024-11-28 03:47:03,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:47:03,683 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 837 transitions. [2024-11-28 03:47:03,683 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) [2024-11-28 03:47:03,683 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 837 transitions. [2024-11-28 03:47:03,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-28 03:47:03,687 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:47:03,687 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] [2024-11-28 03:47:03,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:47:03,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 03:47:03,892 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:47:03,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:03,893 INFO L85 PathProgramCache]: Analyzing trace with hash -293759324, now seen corresponding path program 1 times [2024-11-28 03:47:03,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:03,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586979137] [2024-11-28 03:47:03,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:03,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:03,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:04,158 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-28 03:47:04,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:04,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586979137] [2024-11-28 03:47:04,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586979137] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:47:04,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264426583] [2024-11-28 03:47:04,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:04,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:47:04,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:47:04,162 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:47:04,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:47:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:04,642 INFO L256 TraceCheckSpWp]: Trace formula consists of 1211 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:47:04,651 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:47:04,882 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-28 03:47:04,882 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:47:04,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264426583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:47:04,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:47:04,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-28 03:47:04,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375552956] [2024-11-28 03:47:04,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:47:04,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:47:04,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:04,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:47:04,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:47:04,886 INFO L87 Difference]: Start difference. First operand 523 states and 837 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) [2024-11-28 03:47:05,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:47:05,799 INFO L93 Difference]: Finished difference Result 1011 states and 1658 transitions. [2024-11-28 03:47:05,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:47:05,800 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 [2024-11-28 03:47:05,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:47:05,806 INFO L225 Difference]: With dead ends: 1011 [2024-11-28 03:47:05,807 INFO L226 Difference]: Without dead ends: 531 [2024-11-28 03:47:05,811 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:47:05,812 INFO L435 NwaCegarLoop]: 782 mSDtfsCounter, 760 mSDsluCounter, 1214 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 1996 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 [2024-11-28 03:47:05,812 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 1996 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:47:05,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-28 03:47:05,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2024-11-28 03:47:05,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 414 states have (on average 1.6111111111111112) internal successors, (667), 429 states have internal predecessors, (667), 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) [2024-11-28 03:47:05,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 850 transitions. [2024-11-28 03:47:05,846 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 850 transitions. Word has length 116 [2024-11-28 03:47:05,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:47:05,847 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 850 transitions. [2024-11-28 03:47:05,847 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) [2024-11-28 03:47:05,847 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 850 transitions. [2024-11-28 03:47:05,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-28 03:47:05,851 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:47:05,852 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] [2024-11-28 03:47:05,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:47:06,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 03:47:06,057 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:47:06,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:06,057 INFO L85 PathProgramCache]: Analyzing trace with hash 814902397, now seen corresponding path program 1 times [2024-11-28 03:47:06,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:06,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016532870] [2024-11-28 03:47:06,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:06,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:06,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:06,284 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-28 03:47:06,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:06,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016532870] [2024-11-28 03:47:06,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016532870] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:47:06,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198452309] [2024-11-28 03:47:06,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:06,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:47:06,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:47:06,291 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:47:06,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:47:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:06,725 INFO L256 TraceCheckSpWp]: Trace formula consists of 1214 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:47:06,730 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:47:06,903 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-28 03:47:06,903 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:47:06,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198452309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:47:06,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:47:06,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-28 03:47:06,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101324021] [2024-11-28 03:47:06,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:47:06,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:47:06,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:06,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:47:06,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:47:06,906 INFO L87 Difference]: Start difference. First operand 531 states and 850 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) [2024-11-28 03:47:07,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:47:07,733 INFO L93 Difference]: Finished difference Result 1027 states and 1681 transitions. [2024-11-28 03:47:07,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:47:07,734 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 [2024-11-28 03:47:07,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:47:07,740 INFO L225 Difference]: With dead ends: 1027 [2024-11-28 03:47:07,740 INFO L226 Difference]: Without dead ends: 539 [2024-11-28 03:47:07,744 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 [2024-11-28 03:47:07,745 INFO L435 NwaCegarLoop]: 779 mSDtfsCounter, 757 mSDsluCounter, 1214 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 1993 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:47:07,745 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 1993 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:47:07,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-11-28 03:47:07,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2024-11-28 03:47:07,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 421 states have (on average 1.6128266033254157) internal successors, (679), 436 states have internal predecessors, (679), 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) [2024-11-28 03:47:07,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 863 transitions. [2024-11-28 03:47:07,779 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 863 transitions. Word has length 119 [2024-11-28 03:47:07,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:47:07,779 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 863 transitions. [2024-11-28 03:47:07,780 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) [2024-11-28 03:47:07,780 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 863 transitions. [2024-11-28 03:47:07,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 03:47:07,784 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:47:07,784 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] [2024-11-28 03:47:07,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:47:07,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 03:47:07,988 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:47:07,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:07,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1328371208, now seen corresponding path program 1 times [2024-11-28 03:47:07,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:07,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310805968] [2024-11-28 03:47:07,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:07,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:08,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:08,180 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-28 03:47:08,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:08,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310805968] [2024-11-28 03:47:08,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310805968] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:47:08,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407313992] [2024-11-28 03:47:08,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:08,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:47:08,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:47:08,185 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:47:08,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:47:08,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:08,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 1217 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:47:08,533 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:47:08,740 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-28 03:47:08,740 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:47:08,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407313992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:47:08,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:47:08,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-28 03:47:08,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392401800] [2024-11-28 03:47:08,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:47:08,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:47:08,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:08,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:47:08,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:47:08,746 INFO L87 Difference]: Start difference. First operand 539 states and 863 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) [2024-11-28 03:47:09,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:47:09,536 INFO L93 Difference]: Finished difference Result 1043 states and 1704 transitions. [2024-11-28 03:47:09,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:47:09,537 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 [2024-11-28 03:47:09,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:47:09,545 INFO L225 Difference]: With dead ends: 1043 [2024-11-28 03:47:09,546 INFO L226 Difference]: Without dead ends: 547 [2024-11-28 03:47:09,553 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 [2024-11-28 03:47:09,553 INFO L435 NwaCegarLoop]: 776 mSDtfsCounter, 751 mSDsluCounter, 1214 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 1990 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 [2024-11-28 03:47:09,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [764 Valid, 1990 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:47:09,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-11-28 03:47:09,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2024-11-28 03:47:09,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 428 states have (on average 1.6144859813084111) internal successors, (691), 443 states have internal predecessors, (691), 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) [2024-11-28 03:47:09,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 876 transitions. [2024-11-28 03:47:09,588 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 876 transitions. Word has length 122 [2024-11-28 03:47:09,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:47:09,589 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 876 transitions. [2024-11-28 03:47:09,589 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) [2024-11-28 03:47:09,589 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 876 transitions. [2024-11-28 03:47:09,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 03:47:09,594 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:47:09,595 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] [2024-11-28 03:47:09,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 03:47:09,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:47:09,799 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:47:09,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:09,801 INFO L85 PathProgramCache]: Analyzing trace with hash 530842137, now seen corresponding path program 1 times [2024-11-28 03:47:09,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:09,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036028303] [2024-11-28 03:47:09,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:09,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:09,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:10,214 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-28 03:47:10,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:10,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036028303] [2024-11-28 03:47:10,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036028303] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:47:10,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976261271] [2024-11-28 03:47:10,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:10,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:47:10,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:47:10,221 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:47:10,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:47:10,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:10,647 INFO L256 TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 03:47:10,656 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:47:10,979 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-28 03:47:10,981 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:47:10,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976261271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:47:10,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:47:10,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-28 03:47:10,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409154698] [2024-11-28 03:47:10,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:47:10,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:47:10,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:10,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:47:10,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:47:10,984 INFO L87 Difference]: Start difference. First operand 547 states and 876 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) [2024-11-28 03:47:11,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:47:11,819 INFO L93 Difference]: Finished difference Result 1553 states and 2555 transitions. [2024-11-28 03:47:11,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:47:11,819 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 [2024-11-28 03:47:11,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:47:11,828 INFO L225 Difference]: With dead ends: 1553 [2024-11-28 03:47:11,828 INFO L226 Difference]: Without dead ends: 1049 [2024-11-28 03:47:11,832 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 [2024-11-28 03:47:11,835 INFO L435 NwaCegarLoop]: 888 mSDtfsCounter, 714 mSDsluCounter, 2792 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 3680 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:47:11,836 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [720 Valid, 3680 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:47:11,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2024-11-28 03:47:11,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 1042. [2024-11-28 03:47:11,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1042 states, 815 states have (on average 1.6343558282208588) internal successors, (1332), 844 states have internal predecessors, (1332), 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) [2024-11-28 03:47:11,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 1699 transitions. [2024-11-28 03:47:11,905 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 1699 transitions. Word has length 125 [2024-11-28 03:47:11,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:47:11,905 INFO L471 AbstractCegarLoop]: Abstraction has 1042 states and 1699 transitions. [2024-11-28 03:47:11,906 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) [2024-11-28 03:47:11,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 1699 transitions. [2024-11-28 03:47:11,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-28 03:47:11,909 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:47:11,909 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] [2024-11-28 03:47:11,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 03:47:12,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:47:12,114 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:47:12,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:12,115 INFO L85 PathProgramCache]: Analyzing trace with hash 828492505, now seen corresponding path program 1 times [2024-11-28 03:47:12,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:12,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394534337] [2024-11-28 03:47:12,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:12,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:12,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:12,464 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-28 03:47:12,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:12,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394534337] [2024-11-28 03:47:12,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394534337] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:47:12,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516884305] [2024-11-28 03:47:12,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:12,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:47:12,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:47:12,468 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:47:12,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:47:12,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:12,795 INFO L256 TraceCheckSpWp]: Trace formula consists of 1216 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 03:47:12,800 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:47:12,983 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 03:47:12,984 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:47:12,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516884305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:47:12,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:47:12,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-28 03:47:12,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177492990] [2024-11-28 03:47:12,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:47:12,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:47:12,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:12,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:47:12,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:47:12,986 INFO L87 Difference]: Start difference. First operand 1042 states and 1699 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) [2024-11-28 03:47:13,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:47:13,578 INFO L93 Difference]: Finished difference Result 2059 states and 3406 transitions. [2024-11-28 03:47:13,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:47:13,579 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 [2024-11-28 03:47:13,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:47:13,588 INFO L225 Difference]: With dead ends: 2059 [2024-11-28 03:47:13,588 INFO L226 Difference]: Without dead ends: 1060 [2024-11-28 03:47:13,593 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 [2024-11-28 03:47:13,594 INFO L435 NwaCegarLoop]: 880 mSDtfsCounter, 733 mSDsluCounter, 2324 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 3204 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:47:13,594 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 3204 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:47:13,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2024-11-28 03:47:13,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 1052. [2024-11-28 03:47:13,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1052 states, 821 states have (on average 1.6297198538367843) internal successors, (1338), 853 states have internal predecessors, (1338), 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) [2024-11-28 03:47:13,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1717 transitions. [2024-11-28 03:47:13,661 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1717 transitions. Word has length 127 [2024-11-28 03:47:13,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:47:13,661 INFO L471 AbstractCegarLoop]: Abstraction has 1052 states and 1717 transitions. [2024-11-28 03:47:13,662 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) [2024-11-28 03:47:13,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1717 transitions. [2024-11-28 03:47:13,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 03:47:13,665 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:47:13,665 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] [2024-11-28 03:47:13,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 03:47:13,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:47:13,870 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:47:13,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:13,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1670618711, now seen corresponding path program 1 times [2024-11-28 03:47:13,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:13,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112897147] [2024-11-28 03:47:13,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:13,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:14,223 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-28 03:47:14,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:14,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112897147] [2024-11-28 03:47:14,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112897147] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:47:14,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139665767] [2024-11-28 03:47:14,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:14,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:47:14,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:47:14,226 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:47:14,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 03:47:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:14,603 INFO L256 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:47:14,607 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:47:14,628 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 03:47:14,628 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:47:14,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139665767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:47:14,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:47:14,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-28 03:47:14,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830724525] [2024-11-28 03:47:14,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:47:14,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:47:14,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:14,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:47:14,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:47:14,631 INFO L87 Difference]: Start difference. First operand 1052 states and 1717 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) [2024-11-28 03:47:14,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:47:14,757 INFO L93 Difference]: Finished difference Result 2556 states and 4243 transitions. [2024-11-28 03:47:14,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:47:14,758 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 [2024-11-28 03:47:14,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:47:14,771 INFO L225 Difference]: With dead ends: 2556 [2024-11-28 03:47:14,771 INFO L226 Difference]: Without dead ends: 1548 [2024-11-28 03:47:14,820 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:47:14,822 INFO L435 NwaCegarLoop]: 1516 mSDtfsCounter, 764 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 2313 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 [2024-11-28 03:47:14,822 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [764 Valid, 2313 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:47:14,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2024-11-28 03:47:14,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1052. [2024-11-28 03:47:14,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1052 states, 821 states have (on average 1.628501827040195) internal successors, (1337), 853 states have internal predecessors, (1337), 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) [2024-11-28 03:47:14,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1716 transitions. [2024-11-28 03:47:14,918 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1716 transitions. Word has length 132 [2024-11-28 03:47:14,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:47:14,919 INFO L471 AbstractCegarLoop]: Abstraction has 1052 states and 1716 transitions. [2024-11-28 03:47:14,919 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) [2024-11-28 03:47:14,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1716 transitions. [2024-11-28 03:47:14,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 03:47:14,923 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:47:14,923 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] [2024-11-28 03:47:14,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 03:47:15,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-28 03:47:15,128 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:47:15,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:15,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1922748711, now seen corresponding path program 1 times [2024-11-28 03:47:15,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:15,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165142074] [2024-11-28 03:47:15,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:15,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:15,475 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-28 03:47:15,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:15,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165142074] [2024-11-28 03:47:15,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165142074] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:47:15,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137999643] [2024-11-28 03:47:15,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:15,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:47:15,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:47:15,479 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:47:15,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 03:47:15,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:15,818 INFO L256 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 03:47:15,823 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:47:16,004 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 03:47:16,005 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:47:16,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137999643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:47:16,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:47:16,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-28 03:47:16,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400219234] [2024-11-28 03:47:16,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:47:16,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:47:16,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:16,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:47:16,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:47:16,008 INFO L87 Difference]: Start difference. First operand 1052 states and 1716 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) [2024-11-28 03:47:16,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:47:16,143 INFO L93 Difference]: Finished difference Result 2632 states and 4319 transitions. [2024-11-28 03:47:16,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:47:16,144 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 [2024-11-28 03:47:16,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:47:16,158 INFO L225 Difference]: With dead ends: 2632 [2024-11-28 03:47:16,158 INFO L226 Difference]: Without dead ends: 1625 [2024-11-28 03:47:16,164 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 [2024-11-28 03:47:16,164 INFO L435 NwaCegarLoop]: 878 mSDtfsCounter, 344 mSDsluCounter, 2556 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 3434 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 [2024-11-28 03:47:16,165 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 3434 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:47:16,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1625 states. [2024-11-28 03:47:16,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1625 to 1625. [2024-11-28 03:47:16,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1625 states, 1273 states have (on average 1.6025137470542026) internal successors, (2040), 1310 states have internal predecessors, (2040), 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) [2024-11-28 03:47:16,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1625 states to 1625 states and 2639 transitions. [2024-11-28 03:47:16,288 INFO L78 Accepts]: Start accepts. Automaton has 1625 states and 2639 transitions. Word has length 132 [2024-11-28 03:47:16,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:47:16,289 INFO L471 AbstractCegarLoop]: Abstraction has 1625 states and 2639 transitions. [2024-11-28 03:47:16,289 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) [2024-11-28 03:47:16,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1625 states and 2639 transitions. [2024-11-28 03:47:16,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 03:47:16,293 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:47:16,294 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] [2024-11-28 03:47:16,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 03:47:16,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-28 03:47:16,495 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:47:16,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:16,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1156064859, now seen corresponding path program 1 times [2024-11-28 03:47:16,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:16,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454796354] [2024-11-28 03:47:16,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:16,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:16,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:16,826 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-28 03:47:16,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:16,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454796354] [2024-11-28 03:47:16,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454796354] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:47:16,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500756216] [2024-11-28 03:47:16,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:16,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:47:16,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:47:16,830 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:47:16,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 03:47:17,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:17,157 INFO L256 TraceCheckSpWp]: Trace formula consists of 1229 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:47:17,160 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:47:17,273 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 03:47:17,274 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:47:17,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500756216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:47:17,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:47:17,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 10 [2024-11-28 03:47:17,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917411484] [2024-11-28 03:47:17,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:47:17,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:47:17,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:17,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:47:17,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:47:17,277 INFO L87 Difference]: Start difference. First operand 1625 states and 2639 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) [2024-11-28 03:47:17,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:47:17,364 INFO L93 Difference]: Finished difference Result 2955 states and 4794 transitions. [2024-11-28 03:47:17,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:47:17,368 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 [2024-11-28 03:47:17,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:47:17,385 INFO L225 Difference]: With dead ends: 2955 [2024-11-28 03:47:17,385 INFO L226 Difference]: Without dead ends: 1375 [2024-11-28 03:47:17,396 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:47:17,397 INFO L435 NwaCegarLoop]: 910 mSDtfsCounter, 525 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 1300 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 [2024-11-28 03:47:17,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 1300 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:47:17,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2024-11-28 03:47:17,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 1375. [2024-11-28 03:47:17,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1375 states, 1075 states have (on average 1.584186046511628) internal successors, (1703), 1103 states have internal predecessors, (1703), 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) [2024-11-28 03:47:17,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1375 states to 1375 states and 2197 transitions. [2024-11-28 03:47:17,491 INFO L78 Accepts]: Start accepts. Automaton has 1375 states and 2197 transitions. Word has length 132 [2024-11-28 03:47:17,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:47:17,491 INFO L471 AbstractCegarLoop]: Abstraction has 1375 states and 2197 transitions. [2024-11-28 03:47:17,492 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) [2024-11-28 03:47:17,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1375 states and 2197 transitions. [2024-11-28 03:47:17,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 03:47:17,498 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:47:17,498 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] [2024-11-28 03:47:17,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 03:47:17,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:47:17,702 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:47:17,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:17,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1356631717, now seen corresponding path program 1 times [2024-11-28 03:47:17,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:17,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280891638] [2024-11-28 03:47:17,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:17,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:18,014 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-28 03:47:18,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:18,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280891638] [2024-11-28 03:47:18,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280891638] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:47:18,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801236955] [2024-11-28 03:47:18,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:18,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:47:18,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:47:18,018 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:47:18,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 03:47:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:18,363 INFO L256 TraceCheckSpWp]: Trace formula consists of 1324 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:47:18,367 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:47:18,408 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-28 03:47:18,408 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:47:18,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [801236955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:47:18,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:47:18,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-28 03:47:18,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979600584] [2024-11-28 03:47:18,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:47:18,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:47:18,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:18,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:47:18,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:47:18,411 INFO L87 Difference]: Start difference. First operand 1375 states and 2197 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) [2024-11-28 03:47:18,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:47:18,719 INFO L93 Difference]: Finished difference Result 2795 states and 4527 transitions. [2024-11-28 03:47:18,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:47:18,720 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 [2024-11-28 03:47:18,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:47:18,733 INFO L225 Difference]: With dead ends: 2795 [2024-11-28 03:47:18,733 INFO L226 Difference]: Without dead ends: 1465 [2024-11-28 03:47:18,740 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 [2024-11-28 03:47:18,740 INFO L435 NwaCegarLoop]: 743 mSDtfsCounter, 144 mSDsluCounter, 1463 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 2206 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:47:18,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 2206 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:47:18,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1465 states. [2024-11-28 03:47:18,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1465 to 1453. [2024-11-28 03:47:18,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1453 states, 1151 states have (on average 1.6064291920069504) internal successors, (1849), 1179 states have internal predecessors, (1849), 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) [2024-11-28 03:47:18,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 2343 transitions. [2024-11-28 03:47:18,828 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 2343 transitions. Word has length 155 [2024-11-28 03:47:18,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:47:18,829 INFO L471 AbstractCegarLoop]: Abstraction has 1453 states and 2343 transitions. [2024-11-28 03:47:18,829 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) [2024-11-28 03:47:18,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 2343 transitions. [2024-11-28 03:47:18,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-28 03:47:18,835 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:47:18,835 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] [2024-11-28 03:47:18,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 03:47:19,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:47:19,037 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:47:19,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:19,037 INFO L85 PathProgramCache]: Analyzing trace with hash 630670072, now seen corresponding path program 1 times [2024-11-28 03:47:19,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:19,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213535109] [2024-11-28 03:47:19,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:19,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:19,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:19,448 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-28 03:47:19,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:19,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213535109] [2024-11-28 03:47:19,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213535109] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:47:19,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283414147] [2024-11-28 03:47:19,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:19,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:47:19,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:47:19,452 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:47:19,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 03:47:19,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:19,818 INFO L256 TraceCheckSpWp]: Trace formula consists of 1329 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:47:19,822 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:47:19,860 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-28 03:47:19,860 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:47:19,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283414147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:47:19,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:47:19,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-28 03:47:19,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298115274] [2024-11-28 03:47:19,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:47:19,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:47:19,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:19,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:47:19,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:47:19,863 INFO L87 Difference]: Start difference. First operand 1453 states and 2343 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) [2024-11-28 03:47:20,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:47:20,154 INFO L93 Difference]: Finished difference Result 2957 states and 4821 transitions. [2024-11-28 03:47:20,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:47:20,155 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 [2024-11-28 03:47:20,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:47:20,168 INFO L225 Difference]: With dead ends: 2957 [2024-11-28 03:47:20,168 INFO L226 Difference]: Without dead ends: 1549 [2024-11-28 03:47:20,175 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 [2024-11-28 03:47:20,176 INFO L435 NwaCegarLoop]: 742 mSDtfsCounter, 142 mSDsluCounter, 1461 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 2203 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:47:20,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 2203 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:47:20,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1549 states. [2024-11-28 03:47:20,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1549 to 1531. [2024-11-28 03:47:20,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1531 states, 1227 states have (on average 1.625916870415648) internal successors, (1995), 1255 states have internal predecessors, (1995), 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) [2024-11-28 03:47:20,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1531 states to 1531 states and 2489 transitions. [2024-11-28 03:47:20,261 INFO L78 Accepts]: Start accepts. Automaton has 1531 states and 2489 transitions. Word has length 160 [2024-11-28 03:47:20,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:47:20,261 INFO L471 AbstractCegarLoop]: Abstraction has 1531 states and 2489 transitions. [2024-11-28 03:47:20,261 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) [2024-11-28 03:47:20,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1531 states and 2489 transitions. [2024-11-28 03:47:20,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-28 03:47:20,267 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:47:20,267 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] [2024-11-28 03:47:20,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-28 03:47:20,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-28 03:47:20,468 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:47:20,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:20,469 INFO L85 PathProgramCache]: Analyzing trace with hash -569787032, now seen corresponding path program 1 times [2024-11-28 03:47:20,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:20,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100857172] [2024-11-28 03:47:20,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:20,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:20,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:20,767 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-28 03:47:20,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:20,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100857172] [2024-11-28 03:47:20,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100857172] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:47:20,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651940130] [2024-11-28 03:47:20,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:20,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:47:20,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:47:20,771 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:47:20,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 03:47:21,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:21,130 INFO L256 TraceCheckSpWp]: Trace formula consists of 1333 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:47:21,134 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:47:21,172 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-28 03:47:21,173 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:47:21,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651940130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:47:21,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:47:21,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-28 03:47:21,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574011245] [2024-11-28 03:47:21,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:47:21,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:47:21,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:21,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:47:21,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:47:21,175 INFO L87 Difference]: Start difference. First operand 1531 states and 2489 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) [2024-11-28 03:47:21,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:47:21,476 INFO L93 Difference]: Finished difference Result 3119 states and 5115 transitions. [2024-11-28 03:47:21,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:47:21,477 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 [2024-11-28 03:47:21,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:47:21,490 INFO L225 Difference]: With dead ends: 3119 [2024-11-28 03:47:21,490 INFO L226 Difference]: Without dead ends: 1633 [2024-11-28 03:47:21,497 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 [2024-11-28 03:47:21,498 INFO L435 NwaCegarLoop]: 741 mSDtfsCounter, 140 mSDsluCounter, 1459 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 2200 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 [2024-11-28 03:47:21,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 2200 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:47:21,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2024-11-28 03:47:21,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1609. [2024-11-28 03:47:21,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1303 states have (on average 1.6431312356101304) internal successors, (2141), 1331 states have internal predecessors, (2141), 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) [2024-11-28 03:47:21,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2635 transitions. [2024-11-28 03:47:21,585 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2635 transitions. Word has length 164 [2024-11-28 03:47:21,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:47:21,585 INFO L471 AbstractCegarLoop]: Abstraction has 1609 states and 2635 transitions. [2024-11-28 03:47:21,586 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) [2024-11-28 03:47:21,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2635 transitions. [2024-11-28 03:47:21,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-28 03:47:21,592 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:47:21,592 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] [2024-11-28 03:47:21,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 03:47:21,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-28 03:47:21,793 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:47:21,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:21,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1726217083, now seen corresponding path program 1 times [2024-11-28 03:47:21,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:21,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542666922] [2024-11-28 03:47:21,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:21,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:21,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:22,104 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-28 03:47:22,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:22,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542666922] [2024-11-28 03:47:22,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542666922] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:47:22,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031317454] [2024-11-28 03:47:22,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:22,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:47:22,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:47:22,107 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:47:22,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 03:47:22,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:22,459 INFO L256 TraceCheckSpWp]: Trace formula consists of 1336 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:47:22,463 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:47:22,508 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-28 03:47:22,509 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:47:22,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031317454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:47:22,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:47:22,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-28 03:47:22,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696068378] [2024-11-28 03:47:22,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:47:22,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:47:22,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:22,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:47:22,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:47:22,512 INFO L87 Difference]: Start difference. First operand 1609 states and 2635 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) [2024-11-28 03:47:22,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:47:22,811 INFO L93 Difference]: Finished difference Result 3281 states and 5409 transitions. [2024-11-28 03:47:22,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:47:22,812 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 [2024-11-28 03:47:22,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:47:22,829 INFO L225 Difference]: With dead ends: 3281 [2024-11-28 03:47:22,830 INFO L226 Difference]: Without dead ends: 1717 [2024-11-28 03:47:22,837 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 [2024-11-28 03:47:22,838 INFO L435 NwaCegarLoop]: 740 mSDtfsCounter, 138 mSDsluCounter, 1457 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 2197 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 [2024-11-28 03:47:22,838 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 2197 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:47:22,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1717 states. [2024-11-28 03:47:22,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1717 to 1687. [2024-11-28 03:47:22,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1687 states, 1379 states have (on average 1.6584481508339377) internal successors, (2287), 1407 states have internal predecessors, (2287), 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) [2024-11-28 03:47:22,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 2781 transitions. [2024-11-28 03:47:22,931 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 2781 transitions. Word has length 167 [2024-11-28 03:47:22,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:47:22,933 INFO L471 AbstractCegarLoop]: Abstraction has 1687 states and 2781 transitions. [2024-11-28 03:47:22,933 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) [2024-11-28 03:47:22,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 2781 transitions. [2024-11-28 03:47:22,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-28 03:47:22,939 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:47:22,940 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:47:22,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 03:47:23,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-28 03:47:23,141 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:47:23,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:23,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1276717653, now seen corresponding path program 1 times [2024-11-28 03:47:23,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:23,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330850807] [2024-11-28 03:47:23,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:23,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:23,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:23,443 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-28 03:47:23,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:23,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330850807] [2024-11-28 03:47:23,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330850807] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:47:23,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232823329] [2024-11-28 03:47:23,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:23,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:47:23,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:47:23,446 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:47:23,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 03:47:23,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:23,811 INFO L256 TraceCheckSpWp]: Trace formula consists of 1338 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:47:23,815 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:47:23,860 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-28 03:47:23,861 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:47:23,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232823329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:47:23,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:47:23,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-28 03:47:23,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749193356] [2024-11-28 03:47:23,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:47:23,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:47:23,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:23,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:47:23,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:47:23,863 INFO L87 Difference]: Start difference. First operand 1687 states and 2781 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) [2024-11-28 03:47:24,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:47:24,153 INFO L93 Difference]: Finished difference Result 3443 states and 5703 transitions. [2024-11-28 03:47:24,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:47:24,154 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 169 [2024-11-28 03:47:24,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:47:24,168 INFO L225 Difference]: With dead ends: 3443 [2024-11-28 03:47:24,169 INFO L226 Difference]: Without dead ends: 1801 [2024-11-28 03:47:24,176 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:47:24,176 INFO L435 NwaCegarLoop]: 738 mSDtfsCounter, 136 mSDsluCounter, 1452 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 2190 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:47:24,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 2190 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:47:24,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2024-11-28 03:47:24,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1765. [2024-11-28 03:47:24,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1765 states, 1455 states have (on average 1.6721649484536083) internal successors, (2433), 1483 states have internal predecessors, (2433), 219 states have call successors, (219), 91 states have call predecessors, (219), 90 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2024-11-28 03:47:24,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1765 states to 1765 states and 2927 transitions. [2024-11-28 03:47:24,261 INFO L78 Accepts]: Start accepts. Automaton has 1765 states and 2927 transitions. Word has length 169 [2024-11-28 03:47:24,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:47:24,262 INFO L471 AbstractCegarLoop]: Abstraction has 1765 states and 2927 transitions. [2024-11-28 03:47:24,262 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) [2024-11-28 03:47:24,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1765 states and 2927 transitions. [2024-11-28 03:47:24,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-28 03:47:24,269 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:47:24,269 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 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] [2024-11-28 03:47:24,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-28 03:47:24,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-28 03:47:24,473 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:47:24,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:24,474 INFO L85 PathProgramCache]: Analyzing trace with hash -131976550, now seen corresponding path program 1 times [2024-11-28 03:47:24,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:24,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034912655] [2024-11-28 03:47:24,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:24,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:24,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:24,854 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-28 03:47:24,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:24,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034912655] [2024-11-28 03:47:24,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034912655] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:47:24,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242688768] [2024-11-28 03:47:24,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:24,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:47:24,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:47:24,857 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:47:24,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 03:47:25,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:25,187 INFO L256 TraceCheckSpWp]: Trace formula consists of 1335 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-28 03:47:25,191 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:47:25,489 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-28 03:47:25,490 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:47:25,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242688768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:47:25,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:47:25,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 14 [2024-11-28 03:47:25,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117957896] [2024-11-28 03:47:25,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:47:25,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:47:25,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:25,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:47:25,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:47:25,491 INFO L87 Difference]: Start difference. First operand 1765 states and 2927 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 7 states have internal predecessors, (110), 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) [2024-11-28 03:47:28,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:47:28,897 INFO L93 Difference]: Finished difference Result 5494 states and 9258 transitions. [2024-11-28 03:47:28,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:47:28,898 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 7 states have internal predecessors, (110), 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 [2024-11-28 03:47:28,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:47:28,929 INFO L225 Difference]: With dead ends: 5494 [2024-11-28 03:47:28,929 INFO L226 Difference]: Without dead ends: 3410 [2024-11-28 03:47:28,941 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 [2024-11-28 03:47:28,941 INFO L435 NwaCegarLoop]: 394 mSDtfsCounter, 1800 mSDsluCounter, 1963 mSDsCounter, 0 mSdLazyCounter, 3700 mSolverCounterSat, 430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1901 SdHoareTripleChecker+Valid, 2357 SdHoareTripleChecker+Invalid, 4130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 430 IncrementalHoareTripleChecker+Valid, 3700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:47:28,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1901 Valid, 2357 Invalid, 4130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [430 Valid, 3700 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-28 03:47:28,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3410 states. [2024-11-28 03:47:29,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3410 to 3390. [2024-11-28 03:47:29,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3390 states, 2751 states have (on average 1.6764812795347146) internal successors, (4612), 2833 states have internal predecessors, (4612), 455 states have call successors, (455), 163 states have call predecessors, (455), 183 states have return successors, (599), 451 states have call predecessors, (599), 451 states have call successors, (599) [2024-11-28 03:47:29,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3390 states to 3390 states and 5666 transitions. [2024-11-28 03:47:29,114 INFO L78 Accepts]: Start accepts. Automaton has 3390 states and 5666 transitions. Word has length 169 [2024-11-28 03:47:29,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:47:29,114 INFO L471 AbstractCegarLoop]: Abstraction has 3390 states and 5666 transitions. [2024-11-28 03:47:29,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 7 states have internal predecessors, (110), 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) [2024-11-28 03:47:29,115 INFO L276 IsEmpty]: Start isEmpty. Operand 3390 states and 5666 transitions. [2024-11-28 03:47:29,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-28 03:47:29,127 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:47:29,127 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 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] [2024-11-28 03:47:29,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-28 03:47:29,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:47:29,328 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:47:29,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:29,329 INFO L85 PathProgramCache]: Analyzing trace with hash 366576147, now seen corresponding path program 1 times [2024-11-28 03:47:29,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:29,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640466431] [2024-11-28 03:47:29,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:29,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:29,563 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-28 03:47:29,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:29,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640466431] [2024-11-28 03:47:29,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640466431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:47:29,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:47:29,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:47:29,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574404594] [2024-11-28 03:47:29,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:47:29,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:47:29,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:29,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:47:29,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:47:29,564 INFO L87 Difference]: Start difference. First operand 3390 states and 5666 transitions. Second operand has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 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) [2024-11-28 03:47:29,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:47:29,808 INFO L93 Difference]: Finished difference Result 6606 states and 11073 transitions. [2024-11-28 03:47:29,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:47:29,809 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 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 [2024-11-28 03:47:29,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:47:29,834 INFO L225 Difference]: With dead ends: 6606 [2024-11-28 03:47:29,834 INFO L226 Difference]: Without dead ends: 3123 [2024-11-28 03:47:29,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:47:29,848 INFO L435 NwaCegarLoop]: 781 mSDtfsCounter, 32 mSDsluCounter, 4655 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 5436 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 [2024-11-28 03:47:29,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 5436 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:47:29,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3123 states. [2024-11-28 03:47:29,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3123 to 3111. [2024-11-28 03:47:29,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3111 states, 2572 states have (on average 1.697900466562986) internal successors, (4367), 2641 states have internal predecessors, (4367), 375 states have call successors, (375), 151 states have call predecessors, (375), 163 states have return successors, (469), 366 states have call predecessors, (469), 371 states have call successors, (469) [2024-11-28 03:47:29,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3111 states to 3111 states and 5211 transitions. [2024-11-28 03:47:29,995 INFO L78 Accepts]: Start accepts. Automaton has 3111 states and 5211 transitions. Word has length 172 [2024-11-28 03:47:29,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:47:29,996 INFO L471 AbstractCegarLoop]: Abstraction has 3111 states and 5211 transitions. [2024-11-28 03:47:29,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 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) [2024-11-28 03:47:29,996 INFO L276 IsEmpty]: Start isEmpty. Operand 3111 states and 5211 transitions. [2024-11-28 03:47:30,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2024-11-28 03:47:30,016 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:47:30,016 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 03:47:30,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-28 03:47:30,016 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:47:30,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:47:30,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1839484519, now seen corresponding path program 1 times [2024-11-28 03:47:30,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:47:30,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657499190] [2024-11-28 03:47:30,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:30,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:47:30,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:30,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1181 backedges. 65 proven. 89 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2024-11-28 03:47:30,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:47:30,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657499190] [2024-11-28 03:47:30,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657499190] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:47:30,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162851745] [2024-11-28 03:47:30,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:47:30,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:47:30,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:47:30,812 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:47:30,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 03:47:31,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:47:31,471 INFO L256 TraceCheckSpWp]: Trace formula consists of 3269 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 03:47:31,482 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:47:32,084 INFO L134 CoverageAnalysis]: Checked inductivity of 1181 backedges. 642 proven. 17 refuted. 0 times theorem prover too weak. 522 trivial. 0 not checked. [2024-11-28 03:47:32,084 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:47:33,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1181 backedges. 86 proven. 64 refuted. 0 times theorem prover too weak. 1031 trivial. 0 not checked. [2024-11-28 03:47:33,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162851745] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:47:33,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:47:33,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 14] total 28 [2024-11-28 03:47:33,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118876988] [2024-11-28 03:47:33,371 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:47:33,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-28 03:47:33,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:47:33,375 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-28 03:47:33,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=655, Unknown=0, NotChecked=0, Total=756 [2024-11-28 03:47:33,376 INFO L87 Difference]: Start difference. First operand 3111 states and 5211 transitions. Second operand has 28 states, 26 states have (on average 18.03846153846154) internal successors, (469), 24 states have internal predecessors, (469), 19 states have call successors, (110), 9 states have call predecessors, (110), 15 states have return successors, (111), 21 states have call predecessors, (111), 19 states have call successors, (111) [2024-11-28 03:48:33,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:48:33,141 INFO L93 Difference]: Finished difference Result 46985 states and 83762 transitions. [2024-11-28 03:48:33,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 430 states. [2024-11-28 03:48:33,142 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 18.03846153846154) internal successors, (469), 24 states have internal predecessors, (469), 19 states have call successors, (110), 9 states have call predecessors, (110), 15 states have return successors, (111), 21 states have call predecessors, (111), 19 states have call successors, (111) Word has length 496 [2024-11-28 03:48:33,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:48:33,471 INFO L225 Difference]: With dead ends: 46985 [2024-11-28 03:48:33,471 INFO L226 Difference]: Without dead ends: 43814 [2024-11-28 03:48:33,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1551 GetRequests, 1103 SyntacticMatches, 3 SemanticMatches, 445 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93064 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=16349, Invalid=183013, Unknown=0, NotChecked=0, Total=199362 [2024-11-28 03:48:33,585 INFO L435 NwaCegarLoop]: 2396 mSDtfsCounter, 40373 mSDsluCounter, 23113 mSDsCounter, 0 mSdLazyCounter, 71795 mSolverCounterSat, 14777 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40387 SdHoareTripleChecker+Valid, 25509 SdHoareTripleChecker+Invalid, 86572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 14777 IncrementalHoareTripleChecker+Valid, 71795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:48:33,586 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40387 Valid, 25509 Invalid, 86572 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [14777 Valid, 71795 Invalid, 0 Unknown, 0 Unchecked, 43.9s Time] [2024-11-28 03:48:33,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43814 states. [2024-11-28 03:48:36,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43814 to 35821. [2024-11-28 03:48:36,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35821 states, 29621 states have (on average 1.6796191890888221) internal successors, (49752), 30486 states have internal predecessors, (49752), 4054 states have call successors, (4054), 1795 states have call predecessors, (4054), 2145 states have return successors, (6439), 4115 states have call predecessors, (6439), 4036 states have call successors, (6439) [2024-11-28 03:48:37,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35821 states to 35821 states and 60245 transitions. [2024-11-28 03:48:37,145 INFO L78 Accepts]: Start accepts. Automaton has 35821 states and 60245 transitions. Word has length 496 [2024-11-28 03:48:37,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:48:37,146 INFO L471 AbstractCegarLoop]: Abstraction has 35821 states and 60245 transitions. [2024-11-28 03:48:37,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 18.03846153846154) internal successors, (469), 24 states have internal predecessors, (469), 19 states have call successors, (110), 9 states have call predecessors, (110), 15 states have return successors, (111), 21 states have call predecessors, (111), 19 states have call successors, (111) [2024-11-28 03:48:37,146 INFO L276 IsEmpty]: Start isEmpty. Operand 35821 states and 60245 transitions. [2024-11-28 03:48:37,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2024-11-28 03:48:37,306 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:48:37,306 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:48:37,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-28 03:48:37,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:48:37,508 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:48:37,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:48:37,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1962528791, now seen corresponding path program 1 times [2024-11-28 03:48:37,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:48:37,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712388117] [2024-11-28 03:48:37,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:48:37,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:48:37,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:48:38,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1254 backedges. 61 proven. 73 refuted. 0 times theorem prover too weak. 1120 trivial. 0 not checked. [2024-11-28 03:48:38,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:48:38,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712388117] [2024-11-28 03:48:38,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712388117] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:48:38,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496968306] [2024-11-28 03:48:38,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:48:38,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:48:38,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:48:38,282 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:48:38,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 03:48:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:48:39,005 INFO L256 TraceCheckSpWp]: Trace formula consists of 3295 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:48:39,013 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:48:39,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1254 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 1038 trivial. 0 not checked. [2024-11-28 03:48:39,096 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:48:39,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496968306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:48:39,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:48:39,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2024-11-28 03:48:39,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106944928] [2024-11-28 03:48:39,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:48:39,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:48:39,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:48:39,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:48:39,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:48:39,099 INFO L87 Difference]: Start difference. First operand 35821 states and 60245 transitions. Second operand has 6 states, 6 states have (on average 30.166666666666668) internal successors, (181), 5 states have internal predecessors, (181), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-28 03:48:40,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:48:40,429 INFO L93 Difference]: Finished difference Result 72023 states and 121785 transitions. [2024-11-28 03:48:40,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:48:40,430 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.166666666666668) internal successors, (181), 5 states have internal predecessors, (181), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 502 [2024-11-28 03:48:40,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:48:40,676 INFO L225 Difference]: With dead ends: 72023 [2024-11-28 03:48:40,676 INFO L226 Difference]: Without dead ends: 36271 [2024-11-28 03:48:41,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 503 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:48:41,226 INFO L435 NwaCegarLoop]: 797 mSDtfsCounter, 0 mSDsluCounter, 3179 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3976 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 [2024-11-28 03:48:41,227 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3976 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:48:41,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36271 states. [2024-11-28 03:48:43,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36271 to 36145. [2024-11-28 03:48:43,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36145 states, 29855 states have (on average 1.6742924133311003) internal successors, (49986), 30762 states have internal predecessors, (49986), 4054 states have call successors, (4054), 1795 states have call predecessors, (4054), 2235 states have return successors, (6616), 4163 states have call predecessors, (6616), 4036 states have call successors, (6616) [2024-11-28 03:48:43,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36145 states to 36145 states and 60656 transitions. [2024-11-28 03:48:44,005 INFO L78 Accepts]: Start accepts. Automaton has 36145 states and 60656 transitions. Word has length 502 [2024-11-28 03:48:44,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:48:44,006 INFO L471 AbstractCegarLoop]: Abstraction has 36145 states and 60656 transitions. [2024-11-28 03:48:44,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.166666666666668) internal successors, (181), 5 states have internal predecessors, (181), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-28 03:48:44,006 INFO L276 IsEmpty]: Start isEmpty. Operand 36145 states and 60656 transitions. [2024-11-28 03:48:44,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2024-11-28 03:48:44,163 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:48:44,164 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 12, 12, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:48:44,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-28 03:48:44,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:48:44,365 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:48:44,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:48:44,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1906865007, now seen corresponding path program 1 times [2024-11-28 03:48:44,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:48:44,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020474222] [2024-11-28 03:48:44,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:48:44,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:48:44,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:48:45,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1653 backedges. 90 proven. 95 refuted. 0 times theorem prover too weak. 1468 trivial. 0 not checked. [2024-11-28 03:48:45,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:48:45,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020474222] [2024-11-28 03:48:45,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020474222] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:48:45,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860565398] [2024-11-28 03:48:45,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:48:45,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:48:45,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:48:45,088 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:48:45,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 03:48:45,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:48:45,915 INFO L256 TraceCheckSpWp]: Trace formula consists of 3429 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 03:48:45,935 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:48:46,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1653 backedges. 1104 proven. 10 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2024-11-28 03:48:46,458 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:48:47,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1653 backedges. 127 proven. 68 refuted. 0 times theorem prover too weak. 1458 trivial. 0 not checked. [2024-11-28 03:48:47,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860565398] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:48:47,406 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:48:47,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 11] total 23 [2024-11-28 03:48:47,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730118028] [2024-11-28 03:48:47,406 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:48:47,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 03:48:47,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:48:47,410 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 03:48:47,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:48:47,411 INFO L87 Difference]: Start difference. First operand 36145 states and 60656 transitions. Second operand has 23 states, 22 states have (on average 23.363636363636363) internal successors, (514), 21 states have internal predecessors, (514), 15 states have call successors, (123), 8 states have call predecessors, (123), 16 states have return successors, (125), 16 states have call predecessors, (125), 15 states have call successors, (125) [2024-11-28 03:49:05,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:49:05,954 INFO L93 Difference]: Finished difference Result 140062 states and 248989 transitions. [2024-11-28 03:49:05,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-11-28 03:49:05,955 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 23.363636363636363) internal successors, (514), 21 states have internal predecessors, (514), 15 states have call successors, (123), 8 states have call predecessors, (123), 16 states have return successors, (125), 16 states have call predecessors, (125), 15 states have call successors, (125) Word has length 548 [2024-11-28 03:49:05,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:49:06,766 INFO L225 Difference]: With dead ends: 140062 [2024-11-28 03:49:06,766 INFO L226 Difference]: Without dead ends: 103894 [2024-11-28 03:49:07,223 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1191 GetRequests, 1102 SyntacticMatches, 4 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2308 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1294, Invalid=6188, Unknown=0, NotChecked=0, Total=7482 [2024-11-28 03:49:07,223 INFO L435 NwaCegarLoop]: 730 mSDtfsCounter, 11176 mSDsluCounter, 6408 mSDsCounter, 0 mSdLazyCounter, 17575 mSolverCounterSat, 3879 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11176 SdHoareTripleChecker+Valid, 7138 SdHoareTripleChecker+Invalid, 21454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3879 IncrementalHoareTripleChecker+Valid, 17575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:49:07,224 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11176 Valid, 7138 Invalid, 21454 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3879 Valid, 17575 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2024-11-28 03:49:07,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103894 states. [2024-11-28 03:49:13,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103894 to 88053. [2024-11-28 03:49:13,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88053 states, 72634 states have (on average 1.6735826197097778) internal successors, (121559), 74834 states have internal predecessors, (121559), 9767 states have call successors, (9767), 4505 states have call predecessors, (9767), 5651 states have return successors, (16292), 10153 states have call predecessors, (16292), 9741 states have call successors, (16292) [2024-11-28 03:49:14,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88053 states to 88053 states and 147618 transitions. [2024-11-28 03:49:14,291 INFO L78 Accepts]: Start accepts. Automaton has 88053 states and 147618 transitions. Word has length 548 [2024-11-28 03:49:14,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:49:14,291 INFO L471 AbstractCegarLoop]: Abstraction has 88053 states and 147618 transitions. [2024-11-28 03:49:14,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 23.363636363636363) internal successors, (514), 21 states have internal predecessors, (514), 15 states have call successors, (123), 8 states have call predecessors, (123), 16 states have return successors, (125), 16 states have call predecessors, (125), 15 states have call successors, (125) [2024-11-28 03:49:14,292 INFO L276 IsEmpty]: Start isEmpty. Operand 88053 states and 147618 transitions. [2024-11-28 03:49:14,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2024-11-28 03:49:14,486 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:49:14,487 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:49:14,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-28 03:49:14,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:49:14,691 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:49:14,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:49:14,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1566258881, now seen corresponding path program 1 times [2024-11-28 03:49:14,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:49:14,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246823704] [2024-11-28 03:49:14,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:14,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:49:14,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:15,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1309 backedges. 63 proven. 81 refuted. 0 times theorem prover too weak. 1165 trivial. 0 not checked. [2024-11-28 03:49:15,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:49:15,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246823704] [2024-11-28 03:49:15,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246823704] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:49:15,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138041620] [2024-11-28 03:49:15,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:15,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:49:15,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:49:15,096 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:49:15,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_678d610c-289e-4930-bba8-4a6927431237/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 03:49:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:15,753 INFO L256 TraceCheckSpWp]: Trace formula consists of 3325 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:49:15,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:49:16,119 INFO L134 CoverageAnalysis]: Checked inductivity of 1309 backedges. 600 proven. 4 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2024-11-28 03:49:16,119 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:49:16,723 INFO L134 CoverageAnalysis]: Checked inductivity of 1309 backedges. 63 proven. 81 refuted. 0 times theorem prover too weak. 1165 trivial. 0 not checked. [2024-11-28 03:49:16,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138041620] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:49:16,723 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:49:16,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2024-11-28 03:49:16,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596978740] [2024-11-28 03:49:16,724 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:49:16,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:49:16,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:49:16,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:49:16,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:49:16,727 INFO L87 Difference]: Start difference. First operand 88053 states and 147618 transitions. Second operand has 18 states, 18 states have (on average 23.333333333333332) internal successors, (420), 18 states have internal predecessors, (420), 11 states have call successors, (93), 7 states have call predecessors, (93), 11 states have return successors, (94), 12 states have call predecessors, (94), 11 states have call successors, (94)