./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec14_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec14_product23.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8e3e095c3e35754b69c5b770f69d2f55696576eebdd6e61f09ab7280f663a93f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:49:39,945 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:49:40,035 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:49:40,042 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:49:40,042 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:49:40,069 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:49:40,070 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:49:40,070 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:49:40,070 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:49:40,070 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:49:40,070 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:49:40,070 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:49:40,071 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:49:40,071 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:49:40,071 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:49:40,071 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:49:40,071 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:49:40,071 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:49:40,071 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:49:40,072 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:49:40,072 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:49:40,072 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:49:40,072 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:49:40,072 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:49:40,072 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:49:40,072 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:49:40,072 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:49:40,072 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:49:40,073 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:49:40,073 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:49:40,073 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:49:40,073 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:49:40,073 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:49:40,073 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:49:40,073 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:49:40,073 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:49:40,073 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:49:40,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:49:40,074 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:49:40,074 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:49:40,074 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:49:40,074 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:49:40,074 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:49:40,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:49:40,074 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:49:40,074 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:49:40,075 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:49:40,075 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:49:40,075 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_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e3e095c3e35754b69c5b770f69d2f55696576eebdd6e61f09ab7280f663a93f [2024-11-24 00:49:40,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:49:40,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:49:40,428 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:49:40,429 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:49:40,430 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:49:40,431 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/product-lines/elevator_spec14_product23.cil.c [2024-11-24 00:49:43,370 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/data/1501e54ff/db2ddb7723a4474cb638af6aed09e6cb/FLAG90d885aac [2024-11-24 00:49:43,727 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:49:43,727 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/sv-benchmarks/c/product-lines/elevator_spec14_product23.cil.c [2024-11-24 00:49:43,747 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/data/1501e54ff/db2ddb7723a4474cb638af6aed09e6cb/FLAG90d885aac [2024-11-24 00:49:43,762 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/data/1501e54ff/db2ddb7723a4474cb638af6aed09e6cb [2024-11-24 00:49:43,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:49:43,766 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:49:43,768 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:49:43,768 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:49:43,773 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:49:43,774 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:49:43" (1/1) ... [2024-11-24 00:49:43,775 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47c8ae1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:43, skipping insertion in model container [2024-11-24 00:49:43,775 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:49:43" (1/1) ... [2024-11-24 00:49:43,832 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:49:44,185 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_44a8b206-72c2-4aa6-82db-08cf1cbcf211/sv-benchmarks/c/product-lines/elevator_spec14_product23.cil.c[8585,8598] [2024-11-24 00:49:44,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:49:44,527 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:49:44,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2024-11-24 00:49:44,539 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [408] [2024-11-24 00:49:44,539 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [503] [2024-11-24 00:49:44,539 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [544] [2024-11-24 00:49:44,539 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [553] [2024-11-24 00:49:44,541 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [919] [2024-11-24 00:49:44,541 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1586] [2024-11-24 00:49:44,541 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3177] [2024-11-24 00:49:44,541 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3295] [2024-11-24 00:49:44,541 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3330] [2024-11-24 00:49:44,572 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_44a8b206-72c2-4aa6-82db-08cf1cbcf211/sv-benchmarks/c/product-lines/elevator_spec14_product23.cil.c[8585,8598] [2024-11-24 00:49:44,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:49:44,780 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:49:44,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:44 WrapperNode [2024-11-24 00:49:44,781 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:49:44,782 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:49:44,782 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:49:44,783 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:49:44,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:44" (1/1) ... [2024-11-24 00:49:44,811 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:44" (1/1) ... [2024-11-24 00:49:44,857 INFO L138 Inliner]: procedures = 93, calls = 340, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 852 [2024-11-24 00:49:44,857 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:49:44,858 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:49:44,858 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:49:44,858 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:49:44,871 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:44" (1/1) ... [2024-11-24 00:49:44,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:44" (1/1) ... [2024-11-24 00:49:44,882 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:44" (1/1) ... [2024-11-24 00:49:44,924 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]. [2024-11-24 00:49:44,925 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:44" (1/1) ... [2024-11-24 00:49:44,925 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:44" (1/1) ... [2024-11-24 00:49:44,943 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:44" (1/1) ... [2024-11-24 00:49:44,945 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:44" (1/1) ... [2024-11-24 00:49:44,957 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:44" (1/1) ... [2024-11-24 00:49:44,962 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:44" (1/1) ... [2024-11-24 00:49:44,970 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:44" (1/1) ... [2024-11-24 00:49:45,003 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:49:45,004 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:49:45,006 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:49:45,007 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:49:45,008 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:44" (1/1) ... [2024-11-24 00:49:45,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:49:45,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:49:45,060 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:49:45,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:49:45,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:49:45,096 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-11-24 00:49:45,097 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-11-24 00:49:45,097 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-24 00:49:45,097 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-24 00:49:45,097 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-24 00:49:45,098 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-24 00:49:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-24 00:49:45,098 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-24 00:49:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-11-24 00:49:45,098 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-11-24 00:49:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-24 00:49:45,099 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-24 00:49:45,099 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2024-11-24 00:49:45,100 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2024-11-24 00:49:45,100 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-24 00:49:45,100 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-24 00:49:45,101 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-24 00:49:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-24 00:49:45,101 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-24 00:49:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-24 00:49:45,101 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-24 00:49:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-24 00:49:45,101 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-24 00:49:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-24 00:49:45,101 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-24 00:49:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-24 00:49:45,101 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-24 00:49:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-24 00:49:45,101 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-24 00:49:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-24 00:49:45,102 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-24 00:49:45,102 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-24 00:49:45,102 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-24 00:49:45,102 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-24 00:49:45,102 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-24 00:49:45,102 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-24 00:49:45,102 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-24 00:49:45,102 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-24 00:49:45,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:49:45,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 00:49:45,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 00:49:45,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 00:49:45,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 00:49:45,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 00:49:45,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-24 00:49:45,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-24 00:49:45,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-24 00:49:45,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-24 00:49:45,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-24 00:49:45,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-24 00:49:45,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-24 00:49:45,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-24 00:49:45,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-24 00:49:45,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-24 00:49:45,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-24 00:49:45,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-24 00:49:45,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-24 00:49:45,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-24 00:49:45,103 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-11-24 00:49:45,103 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-11-24 00:49:45,103 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-24 00:49:45,103 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-24 00:49:45,103 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-24 00:49:45,103 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-24 00:49:45,107 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-24 00:49:45,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-24 00:49:45,107 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2024-11-24 00:49:45,107 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2024-11-24 00:49:45,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:49:45,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:49:45,108 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-24 00:49:45,108 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-24 00:49:45,369 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:49:45,373 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:49:46,932 INFO L? ?]: Removed 462 outVars from TransFormulas that were not future-live. [2024-11-24 00:49:46,932 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:49:46,971 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:49:46,975 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:49:46,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:49:46 BoogieIcfgContainer [2024-11-24 00:49:46,975 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:49:46,978 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:49:46,978 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:49:46,983 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:49:46,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:49:43" (1/3) ... [2024-11-24 00:49:46,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cac1140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:49:46, skipping insertion in model container [2024-11-24 00:49:46,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:44" (2/3) ... [2024-11-24 00:49:46,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cac1140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:49:46, skipping insertion in model container [2024-11-24 00:49:46,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:49:46" (3/3) ... [2024-11-24 00:49:46,986 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product23.cil.c [2024-11-24 00:49:47,001 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:49:47,004 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec14_product23.cil.c that has 26 procedures, 558 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:49:47,103 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:49:47,116 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;@362efc4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:49:47,117 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:49:47,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 558 states, 432 states have (on average 1.6666666666666667) internal successors, (720), 448 states have internal predecessors, (720), 99 states have call successors, (99), 25 states have call predecessors, (99), 25 states have return successors, (99), 97 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-24 00:49:47,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-24 00:49:47,169 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:47,170 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:49:47,170 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:47,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:47,176 INFO L85 PathProgramCache]: Analyzing trace with hash -410612230, now seen corresponding path program 1 times [2024-11-24 00:49:47,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:47,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443631809] [2024-11-24 00:49:47,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:47,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:47,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:47,912 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-24 00:49:47,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:49:47,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443631809] [2024-11-24 00:49:47,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443631809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:47,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:49:47,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:49:47,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985310972] [2024-11-24 00:49:47,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:47,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:49:47,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:49:47,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:49:47,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:49:47,949 INFO L87 Difference]: Start difference. First operand has 558 states, 432 states have (on average 1.6666666666666667) internal successors, (720), 448 states have internal predecessors, (720), 99 states have call successors, (99), 25 states have call predecessors, (99), 25 states have return successors, (99), 97 states have call predecessors, (99), 99 states have call successors, (99) Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-11-24 00:49:48,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:48,241 INFO L93 Difference]: Finished difference Result 1109 states and 1836 transitions. [2024-11-24 00:49:48,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:49:48,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 103 [2024-11-24 00:49:48,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:48,258 INFO L225 Difference]: With dead ends: 1109 [2024-11-24 00:49:48,258 INFO L226 Difference]: Without dead ends: 553 [2024-11-24 00:49:48,269 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 [2024-11-24 00:49:48,272 INFO L435 NwaCegarLoop]: 901 mSDtfsCounter, 6 mSDsluCounter, 1796 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2697 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 [2024-11-24 00:49:48,273 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2697 Invalid, 42 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:49:48,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-24 00:49:48,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-24 00:49:48,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 428 states have (on average 1.6565420560747663) internal successors, (709), 443 states have internal predecessors, (709), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-24 00:49:48,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 906 transitions. [2024-11-24 00:49:48,406 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 906 transitions. Word has length 103 [2024-11-24 00:49:48,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:48,406 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 906 transitions. [2024-11-24 00:49:48,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-11-24 00:49:48,407 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 906 transitions. [2024-11-24 00:49:48,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-24 00:49:48,418 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:48,419 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:49:48,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:49:48,420 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:48,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:48,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1102378266, now seen corresponding path program 1 times [2024-11-24 00:49:48,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:48,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718310001] [2024-11-24 00:49:48,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:48,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:48,794 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-24 00:49:48,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:49:48,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718310001] [2024-11-24 00:49:48,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718310001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:48,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:49:48,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:49:48,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119973833] [2024-11-24 00:49:48,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:48,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:49:48,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:49:48,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:49:48,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:49:48,800 INFO L87 Difference]: Start difference. First operand 553 states and 906 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2024-11-24 00:49:48,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:48,920 INFO L93 Difference]: Finished difference Result 1089 states and 1789 transitions. [2024-11-24 00:49:48,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:49:48,921 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 104 [2024-11-24 00:49:48,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:48,930 INFO L225 Difference]: With dead ends: 1089 [2024-11-24 00:49:48,930 INFO L226 Difference]: Without dead ends: 553 [2024-11-24 00:49:48,934 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 [2024-11-24 00:49:48,935 INFO L435 NwaCegarLoop]: 892 mSDtfsCounter, 4 mSDsluCounter, 1777 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2669 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 [2024-11-24 00:49:48,936 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2669 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:49:48,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-24 00:49:48,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-24 00:49:48,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 428 states have (on average 1.6542056074766356) internal successors, (708), 443 states have internal predecessors, (708), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-24 00:49:49,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 905 transitions. [2024-11-24 00:49:49,003 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 905 transitions. Word has length 104 [2024-11-24 00:49:49,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:49,004 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 905 transitions. [2024-11-24 00:49:49,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2024-11-24 00:49:49,005 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 905 transitions. [2024-11-24 00:49:49,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 00:49:49,014 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:49,014 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:49:49,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:49:49,016 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:49,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:49,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1129289482, now seen corresponding path program 1 times [2024-11-24 00:49:49,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:49,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980482946] [2024-11-24 00:49:49,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:49,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:49,288 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-24 00:49:49,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:49:49,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980482946] [2024-11-24 00:49:49,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980482946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:49,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:49:49,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:49:49,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031236792] [2024-11-24 00:49:49,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:49,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:49:49,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:49:49,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:49:49,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:49:49,294 INFO L87 Difference]: Start difference. First operand 553 states and 905 transitions. 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, (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) [2024-11-24 00:49:49,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:49,382 INFO L93 Difference]: Finished difference Result 1089 states and 1788 transitions. [2024-11-24 00:49:49,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:49:49,383 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, (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 105 [2024-11-24 00:49:49,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:49,388 INFO L225 Difference]: With dead ends: 1089 [2024-11-24 00:49:49,389 INFO L226 Difference]: Without dead ends: 553 [2024-11-24 00:49:49,392 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 [2024-11-24 00:49:49,394 INFO L435 NwaCegarLoop]: 892 mSDtfsCounter, 3 mSDsluCounter, 1777 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2669 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 [2024-11-24 00:49:49,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2669 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:49:49,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-24 00:49:49,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-24 00:49:49,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 428 states have (on average 1.6518691588785046) internal successors, (707), 443 states have internal predecessors, (707), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-24 00:49:49,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 904 transitions. [2024-11-24 00:49:49,436 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 904 transitions. Word has length 105 [2024-11-24 00:49:49,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:49,437 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 904 transitions. [2024-11-24 00:49:49,438 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, (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) [2024-11-24 00:49:49,438 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 904 transitions. [2024-11-24 00:49:49,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-24 00:49:49,446 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:49,446 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:49:49,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:49:49,447 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:49,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:49,447 INFO L85 PathProgramCache]: Analyzing trace with hash -2020537758, now seen corresponding path program 1 times [2024-11-24 00:49:49,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:49,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122321547] [2024-11-24 00:49:49,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:49,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:49,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:49,688 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-24 00:49:49,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:49:49,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122321547] [2024-11-24 00:49:49,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122321547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:49,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:49:49,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:49:49,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121984598] [2024-11-24 00:49:49,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:49,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:49:49,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:49:49,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:49:49,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:49:49,693 INFO L87 Difference]: Start difference. First operand 553 states and 904 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, (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) [2024-11-24 00:49:49,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:49,776 INFO L93 Difference]: Finished difference Result 1089 states and 1787 transitions. [2024-11-24 00:49:49,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:49:49,776 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, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 106 [2024-11-24 00:49:49,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:49,782 INFO L225 Difference]: With dead ends: 1089 [2024-11-24 00:49:49,782 INFO L226 Difference]: Without dead ends: 553 [2024-11-24 00:49:49,798 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 [2024-11-24 00:49:49,799 INFO L435 NwaCegarLoop]: 892 mSDtfsCounter, 2 mSDsluCounter, 1777 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2669 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 [2024-11-24 00:49:49,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2669 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:49:49,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-24 00:49:49,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-24 00:49:49,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 428 states have (on average 1.6495327102803738) internal successors, (706), 443 states have internal predecessors, (706), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-24 00:49:49,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 903 transitions. [2024-11-24 00:49:49,836 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 903 transitions. Word has length 106 [2024-11-24 00:49:49,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:49,841 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 903 transitions. [2024-11-24 00:49:49,841 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, (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) [2024-11-24 00:49:49,841 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 903 transitions. [2024-11-24 00:49:49,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 00:49:49,845 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:49,846 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:49:49,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:49:49,846 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:49,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:49,848 INFO L85 PathProgramCache]: Analyzing trace with hash 358536178, now seen corresponding path program 1 times [2024-11-24 00:49:49,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:49,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068092081] [2024-11-24 00:49:49,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:49,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:49,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:50,051 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-24 00:49:50,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:49:50,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068092081] [2024-11-24 00:49:50,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068092081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:50,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:49:50,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:49:50,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738658835] [2024-11-24 00:49:50,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:50,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:49:50,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:49:50,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:49:50,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:49:50,056 INFO L87 Difference]: Start difference. First operand 553 states and 903 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, (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) [2024-11-24 00:49:50,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:50,128 INFO L93 Difference]: Finished difference Result 1089 states and 1786 transitions. [2024-11-24 00:49:50,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:49:50,128 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, (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 107 [2024-11-24 00:49:50,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:50,136 INFO L225 Difference]: With dead ends: 1089 [2024-11-24 00:49:50,137 INFO L226 Difference]: Without dead ends: 553 [2024-11-24 00:49:50,140 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 [2024-11-24 00:49:50,141 INFO L435 NwaCegarLoop]: 892 mSDtfsCounter, 1 mSDsluCounter, 1777 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2669 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 [2024-11-24 00:49:50,141 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2669 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:49:50,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-24 00:49:50,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-24 00:49:50,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 428 states have (on average 1.647196261682243) internal successors, (705), 443 states have internal predecessors, (705), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-24 00:49:50,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 902 transitions. [2024-11-24 00:49:50,179 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 902 transitions. Word has length 107 [2024-11-24 00:49:50,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:50,180 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 902 transitions. [2024-11-24 00:49:50,180 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, (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) [2024-11-24 00:49:50,180 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 902 transitions. [2024-11-24 00:49:50,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:49:50,184 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:50,184 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:49:50,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:49:50,186 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:50,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:50,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1038383582, now seen corresponding path program 1 times [2024-11-24 00:49:50,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:50,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260263547] [2024-11-24 00:49:50,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:50,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:50,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:50,482 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-24 00:49:50,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:49:50,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260263547] [2024-11-24 00:49:50,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260263547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:50,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:49:50,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:49:50,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784408656] [2024-11-24 00:49:50,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:50,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:49:50,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:49:50,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:49:50,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:49:50,485 INFO L87 Difference]: Start difference. First operand 553 states and 902 transitions. Second operand has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-24 00:49:50,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:50,646 INFO L93 Difference]: Finished difference Result 1100 states and 1803 transitions. [2024-11-24 00:49:50,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:49:50,647 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 108 [2024-11-24 00:49:50,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:50,653 INFO L225 Difference]: With dead ends: 1100 [2024-11-24 00:49:50,653 INFO L226 Difference]: Without dead ends: 568 [2024-11-24 00:49:50,667 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 [2024-11-24 00:49:50,669 INFO L435 NwaCegarLoop]: 889 mSDtfsCounter, 91 mSDsluCounter, 4360 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 5249 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 [2024-11-24 00:49:50,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 5249 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:49:50,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-11-24 00:49:50,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 566. [2024-11-24 00:49:50,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 438 states have (on average 1.643835616438356) internal successors, (720), 455 states have internal predecessors, (720), 100 states have call successors, (100), 26 states have call predecessors, (100), 27 states have return successors, (102), 97 states have call predecessors, (102), 99 states have call successors, (102) [2024-11-24 00:49:50,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 922 transitions. [2024-11-24 00:49:50,706 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 922 transitions. Word has length 108 [2024-11-24 00:49:50,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:50,707 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 922 transitions. [2024-11-24 00:49:50,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-24 00:49:50,707 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 922 transitions. [2024-11-24 00:49:50,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:49:50,712 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:50,712 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:49:50,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:49:50,714 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:50,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:50,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1024133437, now seen corresponding path program 1 times [2024-11-24 00:49:50,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:50,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403058318] [2024-11-24 00:49:50,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:50,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:50,887 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-24 00:49:50,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:49:50,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403058318] [2024-11-24 00:49:50,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403058318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:50,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:49:50,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:49:50,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593517179] [2024-11-24 00:49:50,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:50,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:49:50,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:49:50,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:49:50,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:49:50,891 INFO L87 Difference]: Start difference. First operand 566 states and 922 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, (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) [2024-11-24 00:49:50,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:50,986 INFO L93 Difference]: Finished difference Result 1107 states and 1814 transitions. [2024-11-24 00:49:50,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:49:50,987 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, (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 108 [2024-11-24 00:49:50,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:50,992 INFO L225 Difference]: With dead ends: 1107 [2024-11-24 00:49:50,992 INFO L226 Difference]: Without dead ends: 562 [2024-11-24 00:49:50,996 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 [2024-11-24 00:49:50,997 INFO L435 NwaCegarLoop]: 890 mSDtfsCounter, 1 mSDsluCounter, 1774 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2664 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 [2024-11-24 00:49:50,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2664 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:49:50,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2024-11-24 00:49:51,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2024-11-24 00:49:51,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 436 states have (on average 1.6444954128440368) internal successors, (717), 452 states have internal predecessors, (717), 99 states have call successors, (99), 26 states have call predecessors, (99), 26 states have return successors, (99), 96 states have call predecessors, (99), 98 states have call successors, (99) [2024-11-24 00:49:51,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 915 transitions. [2024-11-24 00:49:51,027 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 915 transitions. Word has length 108 [2024-11-24 00:49:51,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:51,027 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 915 transitions. [2024-11-24 00:49:51,028 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, (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) [2024-11-24 00:49:51,028 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 915 transitions. [2024-11-24 00:49:51,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 00:49:51,031 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:51,031 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:49:51,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:49:51,032 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:51,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:51,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1458594970, now seen corresponding path program 1 times [2024-11-24 00:49:51,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:51,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947654144] [2024-11-24 00:49:51,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:51,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:51,258 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-24 00:49:51,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:49:51,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947654144] [2024-11-24 00:49:51,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947654144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:51,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:49:51,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:49:51,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368631687] [2024-11-24 00:49:51,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:51,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:49:51,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:49:51,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:49:51,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:49:51,261 INFO L87 Difference]: Start difference. First operand 562 states and 915 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:49:51,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:51,645 INFO L93 Difference]: Finished difference Result 1150 states and 1886 transitions. [2024-11-24 00:49:51,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:49:51,646 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2024-11-24 00:49:51,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:51,651 INFO L225 Difference]: With dead ends: 1150 [2024-11-24 00:49:51,652 INFO L226 Difference]: Without dead ends: 594 [2024-11-24 00:49:51,655 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 [2024-11-24 00:49:51,656 INFO L435 NwaCegarLoop]: 864 mSDtfsCounter, 72 mSDsluCounter, 3377 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 4241 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 [2024-11-24 00:49:51,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 4241 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:49:51,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2024-11-24 00:49:51,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 567. [2024-11-24 00:49:51,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 441 states have (on average 1.6303854875283448) internal successors, (719), 456 states have internal predecessors, (719), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-24 00:49:51,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 916 transitions. [2024-11-24 00:49:51,691 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 916 transitions. Word has length 109 [2024-11-24 00:49:51,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:51,694 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 916 transitions. [2024-11-24 00:49:51,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:49:51,695 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 916 transitions. [2024-11-24 00:49:51,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-24 00:49:51,698 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:51,698 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:49:51,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:49:51,699 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:51,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:51,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1930001471, now seen corresponding path program 1 times [2024-11-24 00:49:51,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:51,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291370482] [2024-11-24 00:49:51,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:51,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:51,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:51,945 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-24 00:49:51,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:49:51,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291370482] [2024-11-24 00:49:51,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291370482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:51,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:49:51,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:49:51,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543947662] [2024-11-24 00:49:51,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:51,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:49:51,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:49:51,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:49:51,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:49:51,948 INFO L87 Difference]: Start difference. First operand 567 states and 916 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:49:52,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:52,222 INFO L93 Difference]: Finished difference Result 1101 states and 1781 transitions. [2024-11-24 00:49:52,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:49:52,223 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 110 [2024-11-24 00:49:52,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:52,227 INFO L225 Difference]: With dead ends: 1101 [2024-11-24 00:49:52,228 INFO L226 Difference]: Without dead ends: 585 [2024-11-24 00:49:52,231 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 [2024-11-24 00:49:52,231 INFO L435 NwaCegarLoop]: 853 mSDtfsCounter, 56 mSDsluCounter, 3365 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 4218 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 [2024-11-24 00:49:52,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 4218 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:49:52,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-11-24 00:49:52,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 567. [2024-11-24 00:49:52,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 441 states have (on average 1.6213151927437641) internal successors, (715), 456 states have internal predecessors, (715), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-24 00:49:52,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 912 transitions. [2024-11-24 00:49:52,260 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 912 transitions. Word has length 110 [2024-11-24 00:49:52,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:52,261 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 912 transitions. [2024-11-24 00:49:52,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:49:52,261 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 912 transitions. [2024-11-24 00:49:52,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 00:49:52,267 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:52,267 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:49:52,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:49:52,267 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:52,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:52,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1114977717, now seen corresponding path program 1 times [2024-11-24 00:49:52,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:52,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699381979] [2024-11-24 00:49:52,269 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:52,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:52,507 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-24 00:49:52,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:49:52,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699381979] [2024-11-24 00:49:52,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699381979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:52,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:49:52,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:49:52,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654695678] [2024-11-24 00:49:52,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:52,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:49:52,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:49:52,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:49:52,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:49:52,509 INFO L87 Difference]: Start difference. First operand 567 states and 912 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, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:49:52,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:52,772 INFO L93 Difference]: Finished difference Result 1101 states and 1777 transitions. [2024-11-24 00:49:52,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:49:52,773 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, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2024-11-24 00:49:52,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:52,778 INFO L225 Difference]: With dead ends: 1101 [2024-11-24 00:49:52,778 INFO L226 Difference]: Without dead ends: 585 [2024-11-24 00:49:52,781 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 [2024-11-24 00:49:52,782 INFO L435 NwaCegarLoop]: 852 mSDtfsCounter, 55 mSDsluCounter, 3361 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4213 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 [2024-11-24 00:49:52,782 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4213 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:49:52,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-11-24 00:49:52,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 567. [2024-11-24 00:49:52,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 441 states have (on average 1.6122448979591837) internal successors, (711), 456 states have internal predecessors, (711), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-24 00:49:52,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 908 transitions. [2024-11-24 00:49:52,810 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 908 transitions. Word has length 111 [2024-11-24 00:49:52,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:52,811 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 908 transitions. [2024-11-24 00:49:52,811 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, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:49:52,811 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 908 transitions. [2024-11-24 00:49:52,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 00:49:52,815 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:52,815 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:49:52,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:49:52,815 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:52,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:52,816 INFO L85 PathProgramCache]: Analyzing trace with hash -635730229, now seen corresponding path program 1 times [2024-11-24 00:49:52,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:52,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367165193] [2024-11-24 00:49:52,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:52,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:52,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:53,037 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-24 00:49:53,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:49:53,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367165193] [2024-11-24 00:49:53,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367165193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:53,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:49:53,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:49:53,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771250783] [2024-11-24 00:49:53,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:53,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:49:53,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:49:53,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:49:53,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:49:53,040 INFO L87 Difference]: Start difference. First operand 567 states and 908 transitions. Second operand has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-24 00:49:53,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:53,170 INFO L93 Difference]: Finished difference Result 1092 states and 1759 transitions. [2024-11-24 00:49:53,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:49:53,171 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 111 [2024-11-24 00:49:53,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:53,176 INFO L225 Difference]: With dead ends: 1092 [2024-11-24 00:49:53,176 INFO L226 Difference]: Without dead ends: 555 [2024-11-24 00:49:53,180 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 [2024-11-24 00:49:53,181 INFO L435 NwaCegarLoop]: 878 mSDtfsCounter, 94 mSDsluCounter, 4294 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 5172 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 [2024-11-24 00:49:53,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 5172 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:49:53,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-24 00:49:53,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 546. [2024-11-24 00:49:53,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 420 states have (on average 1.6047619047619048) internal successors, (674), 435 states have internal predecessors, (674), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-24 00:49:53,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 871 transitions. [2024-11-24 00:49:53,215 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 871 transitions. Word has length 111 [2024-11-24 00:49:53,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:53,215 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 871 transitions. [2024-11-24 00:49:53,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-24 00:49:53,216 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 871 transitions. [2024-11-24 00:49:53,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-24 00:49:53,220 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:53,220 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:49:53,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:49:53,221 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:53,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:53,221 INFO L85 PathProgramCache]: Analyzing trace with hash 924678278, now seen corresponding path program 1 times [2024-11-24 00:49:53,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:53,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088598452] [2024-11-24 00:49:53,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:53,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:53,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:53,406 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-24 00:49:53,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:49:53,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088598452] [2024-11-24 00:49:53,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088598452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:53,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:49:53,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:49:53,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014530249] [2024-11-24 00:49:53,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:53,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:49:53,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:49:53,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:49:53,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:49:53,408 INFO L87 Difference]: Start difference. First operand 546 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, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:49:53,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:53,556 INFO L93 Difference]: Finished difference Result 1071 states and 1722 transitions. [2024-11-24 00:49:53,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:49:53,557 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, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 112 [2024-11-24 00:49:53,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:53,562 INFO L225 Difference]: With dead ends: 1071 [2024-11-24 00:49:53,562 INFO L226 Difference]: Without dead ends: 555 [2024-11-24 00:49:53,565 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 [2024-11-24 00:49:53,566 INFO L435 NwaCegarLoop]: 853 mSDtfsCounter, 39 mSDsluCounter, 3365 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 4218 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 [2024-11-24 00:49:53,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 4218 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:49:53,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-24 00:49:53,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 546. [2024-11-24 00:49:53,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 420 states have (on average 1.6023809523809525) internal successors, (673), 435 states have internal predecessors, (673), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-24 00:49:53,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 870 transitions. [2024-11-24 00:49:53,593 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 870 transitions. Word has length 112 [2024-11-24 00:49:53,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:53,593 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 870 transitions. [2024-11-24 00:49:53,593 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, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:49:53,594 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 870 transitions. [2024-11-24 00:49:53,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-24 00:49:53,597 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:53,597 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:49:53,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:49:53,598 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:53,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:53,598 INFO L85 PathProgramCache]: Analyzing trace with hash -2021739216, now seen corresponding path program 1 times [2024-11-24 00:49:53,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:53,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15876751] [2024-11-24 00:49:53,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:53,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:53,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:53,784 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-24 00:49:53,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:49:53,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15876751] [2024-11-24 00:49:53,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15876751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:53,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:49:53,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:49:53,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426110376] [2024-11-24 00:49:53,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:53,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:49:53,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:49:53,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:49:53,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:49:53,785 INFO L87 Difference]: Start difference. First operand 546 states and 870 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, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:49:53,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:53,919 INFO L93 Difference]: Finished difference Result 1071 states and 1721 transitions. [2024-11-24 00:49:53,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:49:53,920 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, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2024-11-24 00:49:53,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:53,925 INFO L225 Difference]: With dead ends: 1071 [2024-11-24 00:49:53,925 INFO L226 Difference]: Without dead ends: 555 [2024-11-24 00:49:53,928 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 [2024-11-24 00:49:53,929 INFO L435 NwaCegarLoop]: 853 mSDtfsCounter, 38 mSDsluCounter, 3365 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 4218 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 [2024-11-24 00:49:53,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 4218 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:49:53,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-24 00:49:53,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 546. [2024-11-24 00:49:53,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 420 states have (on average 1.6) internal successors, (672), 435 states have internal predecessors, (672), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-24 00:49:53,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 869 transitions. [2024-11-24 00:49:53,959 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 869 transitions. Word has length 113 [2024-11-24 00:49:53,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:53,959 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 869 transitions. [2024-11-24 00:49:53,959 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, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:49:53,959 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 869 transitions. [2024-11-24 00:49:53,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-24 00:49:53,963 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:53,963 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:49:53,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 00:49:53,963 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:53,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:53,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1253837901, now seen corresponding path program 1 times [2024-11-24 00:49:53,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:53,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122655778] [2024-11-24 00:49:53,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:53,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:54,079 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-24 00:49:54,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:49:54,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122655778] [2024-11-24 00:49:54,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122655778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:54,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:49:54,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:49:54,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418185770] [2024-11-24 00:49:54,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:54,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:49:54,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:49:54,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:49:54,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:49:54,080 INFO L87 Difference]: Start difference. First operand 546 states and 869 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-11-24 00:49:54,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:54,172 INFO L93 Difference]: Finished difference Result 1071 states and 1720 transitions. [2024-11-24 00:49:54,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:49:54,173 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 114 [2024-11-24 00:49:54,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:54,177 INFO L225 Difference]: With dead ends: 1071 [2024-11-24 00:49:54,177 INFO L226 Difference]: Without dead ends: 555 [2024-11-24 00:49:54,180 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 [2024-11-24 00:49:54,181 INFO L435 NwaCegarLoop]: 852 mSDtfsCounter, 45 mSDsluCounter, 1650 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2502 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 [2024-11-24 00:49:54,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 2502 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:49:54,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-24 00:49:54,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 546. [2024-11-24 00:49:54,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 420 states have (on average 1.5976190476190477) internal successors, (671), 435 states have internal predecessors, (671), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-24 00:49:54,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 868 transitions. [2024-11-24 00:49:54,210 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 868 transitions. Word has length 114 [2024-11-24 00:49:54,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:54,211 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 868 transitions. [2024-11-24 00:49:54,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-11-24 00:49:54,211 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 868 transitions. [2024-11-24 00:49:54,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-24 00:49:54,215 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:54,215 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:49:54,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 00:49:54,215 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:54,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:54,216 INFO L85 PathProgramCache]: Analyzing trace with hash -622644917, now seen corresponding path program 1 times [2024-11-24 00:49:54,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:54,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897443192] [2024-11-24 00:49:54,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:54,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:54,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:54,343 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-24 00:49:54,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:49:54,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897443192] [2024-11-24 00:49:54,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897443192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:54,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:49:54,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:49:54,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147905722] [2024-11-24 00:49:54,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:54,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:49:54,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:49:54,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:49:54,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:49:54,345 INFO L87 Difference]: Start difference. First operand 546 states and 868 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:49:54,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:54,422 INFO L93 Difference]: Finished difference Result 1058 states and 1699 transitions. [2024-11-24 00:49:54,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:49:54,422 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2024-11-24 00:49:54,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:54,428 INFO L225 Difference]: With dead ends: 1058 [2024-11-24 00:49:54,429 INFO L226 Difference]: Without dead ends: 548 [2024-11-24 00:49:54,433 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 [2024-11-24 00:49:54,433 INFO L435 NwaCegarLoop]: 831 mSDtfsCounter, 15 mSDsluCounter, 1647 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2478 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 [2024-11-24 00:49:54,433 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2478 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:49:54,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2024-11-24 00:49:54,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2024-11-24 00:49:54,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 422 states have (on average 1.5924170616113744) internal successors, (672), 437 states have internal predecessors, (672), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-24 00:49:54,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 869 transitions. [2024-11-24 00:49:54,460 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 869 transitions. Word has length 114 [2024-11-24 00:49:54,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:54,460 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 869 transitions. [2024-11-24 00:49:54,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-24 00:49:54,461 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 869 transitions. [2024-11-24 00:49:54,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-24 00:49:54,464 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:54,464 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:49:54,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 00:49:54,464 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:54,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:54,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1251410715, now seen corresponding path program 1 times [2024-11-24 00:49:54,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:54,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931554403] [2024-11-24 00:49:54,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:54,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:54,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:54,649 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-24 00:49:54,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:49:54,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931554403] [2024-11-24 00:49:54,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931554403] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:49:54,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267974936] [2024-11-24 00:49:54,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:54,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:49:54,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:49:54,654 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:49:54,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:49:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:55,030 INFO L256 TraceCheckSpWp]: Trace formula consists of 1209 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:49:55,037 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:49:55,214 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-24 00:49:55,216 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:49:55,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267974936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:55,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:49:55,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-24 00:49:55,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487800219] [2024-11-24 00:49:55,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:55,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:49:55,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:49:55,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:49:55,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:49:55,218 INFO L87 Difference]: Start difference. First operand 548 states and 869 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:49:56,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:56,107 INFO L93 Difference]: Finished difference Result 1061 states and 1728 transitions. [2024-11-24 00:49:56,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:49:56,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 2 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 115 [2024-11-24 00:49:56,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:56,114 INFO L225 Difference]: With dead ends: 1061 [2024-11-24 00:49:56,114 INFO L226 Difference]: Without dead ends: 556 [2024-11-24 00:49:56,119 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:49:56,120 INFO L435 NwaCegarLoop]: 830 mSDtfsCounter, 810 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 2102 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:49:56,120 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 2102 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 00:49:56,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-24 00:49:56,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-11-24 00:49:56,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 429 states have (on average 1.5944055944055944) internal successors, (684), 444 states have internal predecessors, (684), 99 states have call successors, (99), 28 states have call predecessors, (99), 27 states have return successors, (99), 96 states have call predecessors, (99), 98 states have call successors, (99) [2024-11-24 00:49:56,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 882 transitions. [2024-11-24 00:49:56,164 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 882 transitions. Word has length 115 [2024-11-24 00:49:56,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:56,164 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 882 transitions. [2024-11-24 00:49:56,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:49:56,165 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 882 transitions. [2024-11-24 00:49:56,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-24 00:49:56,169 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:56,169 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:49:56,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 00:49:56,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:49:56,373 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:56,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:56,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1047324881, now seen corresponding path program 1 times [2024-11-24 00:49:56,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:56,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511231210] [2024-11-24 00:49:56,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:56,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:56,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:56,615 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-24 00:49:56,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:49:56,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511231210] [2024-11-24 00:49:56,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511231210] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:49:56,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869733499] [2024-11-24 00:49:56,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:56,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:49:56,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:49:56,619 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:49:56,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:49:57,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:57,037 INFO L256 TraceCheckSpWp]: Trace formula consists of 1212 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:49:57,044 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:49:57,211 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-24 00:49:57,212 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:49:57,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869733499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:57,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:49:57,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-24 00:49:57,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030336406] [2024-11-24 00:49:57,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:57,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:49:57,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:49:57,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:49:57,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:49:57,216 INFO L87 Difference]: Start difference. First operand 556 states and 882 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, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:49:58,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:58,006 INFO L93 Difference]: Finished difference Result 1077 states and 1751 transitions. [2024-11-24 00:49:58,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:49:58,006 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, (14), 2 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 118 [2024-11-24 00:49:58,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:58,012 INFO L225 Difference]: With dead ends: 1077 [2024-11-24 00:49:58,012 INFO L226 Difference]: Without dead ends: 564 [2024-11-24 00:49:58,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:49:58,016 INFO L435 NwaCegarLoop]: 827 mSDtfsCounter, 798 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 2099 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:49:58,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 2099 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:49:58,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2024-11-24 00:49:58,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 564. [2024-11-24 00:49:58,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 436 states have (on average 1.5963302752293578) internal successors, (696), 451 states have internal predecessors, (696), 99 states have call successors, (99), 29 states have call predecessors, (99), 28 states have return successors, (100), 96 states have call predecessors, (100), 98 states have call successors, (100) [2024-11-24 00:49:58,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 895 transitions. [2024-11-24 00:49:58,048 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 895 transitions. Word has length 118 [2024-11-24 00:49:58,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:58,049 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 895 transitions. [2024-11-24 00:49:58,049 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, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:49:58,049 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 895 transitions. [2024-11-24 00:49:58,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-24 00:49:58,052 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:58,053 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:49:58,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 00:49:58,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-24 00:49:58,257 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:58,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:58,258 INFO L85 PathProgramCache]: Analyzing trace with hash 309452513, now seen corresponding path program 1 times [2024-11-24 00:49:58,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:58,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408983001] [2024-11-24 00:49:58,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:58,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:58,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:58,440 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-24 00:49:58,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:49:58,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408983001] [2024-11-24 00:49:58,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408983001] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:49:58,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934296233] [2024-11-24 00:49:58,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:58,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:49:58,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:49:58,442 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:49:58,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:49:58,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:58,808 INFO L256 TraceCheckSpWp]: Trace formula consists of 1215 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:49:58,817 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:49:58,969 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-24 00:49:58,969 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:49:58,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [934296233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:49:58,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:49:58,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-24 00:49:58,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440751776] [2024-11-24 00:49:58,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:49:58,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:49:58,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:49:58,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:49:58,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:49:58,970 INFO L87 Difference]: Start difference. First operand 564 states and 895 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, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:49:59,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:59,702 INFO L93 Difference]: Finished difference Result 1093 states and 1774 transitions. [2024-11-24 00:49:59,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:49:59,703 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, (14), 2 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 121 [2024-11-24 00:49:59,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:59,708 INFO L225 Difference]: With dead ends: 1093 [2024-11-24 00:49:59,708 INFO L226 Difference]: Without dead ends: 572 [2024-11-24 00:49:59,713 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:49:59,713 INFO L435 NwaCegarLoop]: 824 mSDtfsCounter, 800 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 2096 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:49:59,713 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 2096 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:49:59,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-11-24 00:49:59,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2024-11-24 00:49:59,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 443 states have (on average 1.5981941309255079) internal successors, (708), 458 states have internal predecessors, (708), 99 states have call successors, (99), 30 states have call predecessors, (99), 29 states have return successors, (101), 96 states have call predecessors, (101), 98 states have call successors, (101) [2024-11-24 00:49:59,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 908 transitions. [2024-11-24 00:49:59,745 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 908 transitions. Word has length 121 [2024-11-24 00:49:59,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:59,745 INFO L471 AbstractCegarLoop]: Abstraction has 572 states and 908 transitions. [2024-11-24 00:49:59,746 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, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:49:59,746 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 908 transitions. [2024-11-24 00:49:59,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-24 00:49:59,749 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:59,750 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:49:59,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 00:49:59,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-24 00:49:59,950 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:49:59,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:59,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1223151557, now seen corresponding path program 1 times [2024-11-24 00:49:59,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:59,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897525200] [2024-11-24 00:49:59,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:59,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:00,117 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-24 00:50:00,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:00,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897525200] [2024-11-24 00:50:00,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897525200] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:50:00,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156278591] [2024-11-24 00:50:00,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:00,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:50:00,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:50:00,120 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:50:00,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 00:50:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:00,467 INFO L256 TraceCheckSpWp]: Trace formula consists of 1218 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:50:00,471 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:50:00,633 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-24 00:50:00,634 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:50:00,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156278591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:00,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:50:00,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-24 00:50:00,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626683441] [2024-11-24 00:50:00,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:00,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:50:00,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:00,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:50:00,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:50:00,638 INFO L87 Difference]: Start difference. First operand 572 states and 908 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, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:50:01,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:01,335 INFO L93 Difference]: Finished difference Result 1109 states and 1797 transitions. [2024-11-24 00:50:01,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:50:01,336 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, (14), 2 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 124 [2024-11-24 00:50:01,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:01,342 INFO L225 Difference]: With dead ends: 1109 [2024-11-24 00:50:01,342 INFO L226 Difference]: Without dead ends: 580 [2024-11-24 00:50:01,346 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:50:01,347 INFO L435 NwaCegarLoop]: 821 mSDtfsCounter, 780 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 2093 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:01,347 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 2093 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:50:01,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-11-24 00:50:01,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2024-11-24 00:50:01,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 450 states have (on average 1.6) internal successors, (720), 465 states have internal predecessors, (720), 99 states have call successors, (99), 31 states have call predecessors, (99), 30 states have return successors, (102), 96 states have call predecessors, (102), 98 states have call successors, (102) [2024-11-24 00:50:01,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 921 transitions. [2024-11-24 00:50:01,383 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 921 transitions. Word has length 124 [2024-11-24 00:50:01,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:01,383 INFO L471 AbstractCegarLoop]: Abstraction has 580 states and 921 transitions. [2024-11-24 00:50:01,383 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, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:50:01,384 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 921 transitions. [2024-11-24 00:50:01,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-24 00:50:01,389 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:01,389 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] [2024-11-24 00:50:01,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-24 00:50:01,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:50:01,590 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:01,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:01,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1877001308, now seen corresponding path program 1 times [2024-11-24 00:50:01,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:01,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93804610] [2024-11-24 00:50:01,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:01,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:01,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:01,819 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:50:01,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:01,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93804610] [2024-11-24 00:50:01,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93804610] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:50:01,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702980369] [2024-11-24 00:50:01,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:01,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:50:01,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:50:01,822 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:50:01,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 00:50:02,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:02,147 INFO L256 TraceCheckSpWp]: Trace formula consists of 1218 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 00:50:02,152 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:50:02,293 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:50:02,293 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:50:02,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702980369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:02,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:50:02,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-24 00:50:02,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880826440] [2024-11-24 00:50:02,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:02,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:50:02,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:02,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:50:02,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:50:02,297 INFO L87 Difference]: Start difference. First operand 580 states and 921 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, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:50:02,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:02,944 INFO L93 Difference]: Finished difference Result 1119 states and 1824 transitions. [2024-11-24 00:50:02,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:50:02,945 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, (14), 2 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 [2024-11-24 00:50:02,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:02,951 INFO L225 Difference]: With dead ends: 1119 [2024-11-24 00:50:02,951 INFO L226 Difference]: Without dead ends: 582 [2024-11-24 00:50:02,955 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:50:02,958 INFO L435 NwaCegarLoop]: 821 mSDtfsCounter, 776 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 2093 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:02,959 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [789 Valid, 2093 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:50:02,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2024-11-24 00:50:02,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 582. [2024-11-24 00:50:02,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 451 states have (on average 1.58980044345898) internal successors, (717), 467 states have internal predecessors, (717), 99 states have call successors, (99), 31 states have call predecessors, (99), 31 states have return successors, (103), 96 states have call predecessors, (103), 98 states have call successors, (103) [2024-11-24 00:50:03,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 919 transitions. [2024-11-24 00:50:03,002 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 919 transitions. Word has length 127 [2024-11-24 00:50:03,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:03,003 INFO L471 AbstractCegarLoop]: Abstraction has 582 states and 919 transitions. [2024-11-24 00:50:03,003 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, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:50:03,003 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 919 transitions. [2024-11-24 00:50:03,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-24 00:50:03,007 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:03,007 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] [2024-11-24 00:50:03,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-24 00:50:03,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:50:03,212 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:03,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:03,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1321366237, now seen corresponding path program 1 times [2024-11-24 00:50:03,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:03,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095246736] [2024-11-24 00:50:03,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:03,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:03,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:03,524 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-24 00:50:03,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:03,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095246736] [2024-11-24 00:50:03,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095246736] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:50:03,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471875013] [2024-11-24 00:50:03,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:03,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:50:03,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:50:03,527 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:50:03,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 00:50:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:03,852 INFO L256 TraceCheckSpWp]: Trace formula consists of 1221 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 00:50:03,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:50:03,970 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:50:03,972 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:50:03,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [471875013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:03,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:50:03,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 10 [2024-11-24 00:50:03,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672308521] [2024-11-24 00:50:03,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:03,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:50:03,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:03,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:50:03,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:50:03,975 INFO L87 Difference]: Start difference. First operand 582 states and 919 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:50:04,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:04,032 INFO L93 Difference]: Finished difference Result 1297 states and 2048 transitions. [2024-11-24 00:50:04,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:50:04,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2024-11-24 00:50:04,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:04,056 INFO L225 Difference]: With dead ends: 1297 [2024-11-24 00:50:04,056 INFO L226 Difference]: Without dead ends: 758 [2024-11-24 00:50:04,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:50:04,060 INFO L435 NwaCegarLoop]: 957 mSDtfsCounter, 544 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 1388 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 [2024-11-24 00:50:04,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 1388 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:50:04,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2024-11-24 00:50:04,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 756. [2024-11-24 00:50:04,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 585 states have (on average 1.5487179487179488) internal successors, (906), 600 states have internal predecessors, (906), 124 states have call successors, (124), 46 states have call predecessors, (124), 46 states have return successors, (141), 121 states have call predecessors, (141), 122 states have call successors, (141) [2024-11-24 00:50:04,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 1171 transitions. [2024-11-24 00:50:04,108 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 1171 transitions. Word has length 127 [2024-11-24 00:50:04,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:04,108 INFO L471 AbstractCegarLoop]: Abstraction has 756 states and 1171 transitions. [2024-11-24 00:50:04,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:50:04,108 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 1171 transitions. [2024-11-24 00:50:04,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-24 00:50:04,112 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:04,112 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] [2024-11-24 00:50:04,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-24 00:50:04,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:50:04,316 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:04,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:04,316 INFO L85 PathProgramCache]: Analyzing trace with hash 642093983, now seen corresponding path program 1 times [2024-11-24 00:50:04,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:04,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308539461] [2024-11-24 00:50:04,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:04,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:04,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:04,603 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-24 00:50:04,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:04,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308539461] [2024-11-24 00:50:04,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308539461] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:50:04,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142998909] [2024-11-24 00:50:04,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:04,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:50:04,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:50:04,606 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:50:04,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 00:50:04,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:04,949 INFO L256 TraceCheckSpWp]: Trace formula consists of 1224 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-24 00:50:04,953 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:50:05,155 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:50:05,156 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:50:05,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142998909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:05,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:50:05,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-24 00:50:05,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118886241] [2024-11-24 00:50:05,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:05,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:50:05,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:05,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:50:05,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:50:05,157 INFO L87 Difference]: Start difference. First operand 756 states and 1171 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) [2024-11-24 00:50:05,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:05,818 INFO L93 Difference]: Finished difference Result 2186 states and 3467 transitions. [2024-11-24 00:50:05,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:50:05,819 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 [2024-11-24 00:50:05,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:05,831 INFO L225 Difference]: With dead ends: 2186 [2024-11-24 00:50:05,831 INFO L226 Difference]: Without dead ends: 1474 [2024-11-24 00:50:05,835 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 [2024-11-24 00:50:05,837 INFO L435 NwaCegarLoop]: 890 mSDtfsCounter, 780 mSDsluCounter, 2373 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 3263 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:05,838 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 3263 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:50:05,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2024-11-24 00:50:05,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1466. [2024-11-24 00:50:05,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1466 states, 1133 states have (on average 1.558693733451015) internal successors, (1766), 1164 states have internal predecessors, (1766), 241 states have call successors, (241), 89 states have call predecessors, (241), 91 states have return successors, (300), 236 states have call predecessors, (300), 237 states have call successors, (300) [2024-11-24 00:50:05,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 2307 transitions. [2024-11-24 00:50:05,929 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 2307 transitions. Word has length 127 [2024-11-24 00:50:05,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:05,930 INFO L471 AbstractCegarLoop]: Abstraction has 1466 states and 2307 transitions. [2024-11-24 00:50:05,930 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) [2024-11-24 00:50:05,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 2307 transitions. [2024-11-24 00:50:05,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-24 00:50:05,934 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:05,934 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] [2024-11-24 00:50:05,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-24 00:50:06,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:50:06,135 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:06,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:06,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1050528762, now seen corresponding path program 1 times [2024-11-24 00:50:06,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:06,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876779228] [2024-11-24 00:50:06,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:06,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:06,466 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-24 00:50:06,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:06,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876779228] [2024-11-24 00:50:06,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876779228] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:50:06,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441070111] [2024-11-24 00:50:06,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:06,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:50:06,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:50:06,470 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:50:06,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-24 00:50:06,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:06,803 INFO L256 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 00:50:06,809 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:50:06,832 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:50:06,832 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:50:06,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441070111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:06,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:50:06,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-24 00:50:06,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931037354] [2024-11-24 00:50:06,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:06,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:50:06,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:06,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:50:06,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:50:06,834 INFO L87 Difference]: Start difference. First operand 1466 states and 2307 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) [2024-11-24 00:50:06,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:06,986 INFO L93 Difference]: Finished difference Result 3590 states and 5727 transitions. [2024-11-24 00:50:06,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:50:06,987 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 [2024-11-24 00:50:06,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:07,006 INFO L225 Difference]: With dead ends: 3590 [2024-11-24 00:50:07,007 INFO L226 Difference]: Without dead ends: 2170 [2024-11-24 00:50:07,015 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 [2024-11-24 00:50:07,016 INFO L435 NwaCegarLoop]: 1603 mSDtfsCounter, 811 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 2443 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 [2024-11-24 00:50:07,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 2443 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:50:07,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2170 states. [2024-11-24 00:50:07,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2170 to 1466. [2024-11-24 00:50:07,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1466 states, 1133 states have (on average 1.557811120917917) internal successors, (1765), 1164 states have internal predecessors, (1765), 241 states have call successors, (241), 89 states have call predecessors, (241), 91 states have return successors, (300), 236 states have call predecessors, (300), 237 states have call successors, (300) [2024-11-24 00:50:07,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 2306 transitions. [2024-11-24 00:50:07,161 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 2306 transitions. Word has length 132 [2024-11-24 00:50:07,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:07,162 INFO L471 AbstractCegarLoop]: Abstraction has 1466 states and 2306 transitions. [2024-11-24 00:50:07,162 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) [2024-11-24 00:50:07,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 2306 transitions. [2024-11-24 00:50:07,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-24 00:50:07,166 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:07,166 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] [2024-11-24 00:50:07,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-24 00:50:07,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:50:07,368 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:07,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:07,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1752128636, now seen corresponding path program 1 times [2024-11-24 00:50:07,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:07,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557811154] [2024-11-24 00:50:07,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:07,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:07,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:07,679 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-24 00:50:07,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:07,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557811154] [2024-11-24 00:50:07,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557811154] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:50:07,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267425622] [2024-11-24 00:50:07,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:07,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:50:07,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:50:07,682 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:50:07,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-24 00:50:08,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:08,037 INFO L256 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 00:50:08,041 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:50:08,179 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:50:08,180 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:50:08,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1267425622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:08,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:50:08,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-24 00:50:08,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552654124] [2024-11-24 00:50:08,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:08,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:50:08,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:08,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:50:08,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:50:08,181 INFO L87 Difference]: Start difference. First operand 1466 states and 2306 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) [2024-11-24 00:50:08,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:08,327 INFO L93 Difference]: Finished difference Result 2884 states and 4557 transitions. [2024-11-24 00:50:08,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:50:08,327 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 [2024-11-24 00:50:08,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:08,340 INFO L225 Difference]: With dead ends: 2884 [2024-11-24 00:50:08,340 INFO L226 Difference]: Without dead ends: 1466 [2024-11-24 00:50:08,349 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 [2024-11-24 00:50:08,350 INFO L435 NwaCegarLoop]: 935 mSDtfsCounter, 383 mSDsluCounter, 2474 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 3409 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:08,351 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 3409 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:50:08,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1466 states. [2024-11-24 00:50:08,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1466 to 1466. [2024-11-24 00:50:08,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1466 states, 1133 states have (on average 1.5542806707855252) internal successors, (1761), 1164 states have internal predecessors, (1761), 241 states have call successors, (241), 89 states have call predecessors, (241), 91 states have return successors, (300), 236 states have call predecessors, (300), 237 states have call successors, (300) [2024-11-24 00:50:08,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 2302 transitions. [2024-11-24 00:50:08,455 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 2302 transitions. Word has length 132 [2024-11-24 00:50:08,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:08,456 INFO L471 AbstractCegarLoop]: Abstraction has 1466 states and 2302 transitions. [2024-11-24 00:50:08,457 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) [2024-11-24 00:50:08,457 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 2302 transitions. [2024-11-24 00:50:08,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 00:50:08,462 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:08,463 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] [2024-11-24 00:50:08,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-24 00:50:08,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-24 00:50:08,664 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:08,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:08,665 INFO L85 PathProgramCache]: Analyzing trace with hash 798313868, now seen corresponding path program 1 times [2024-11-24 00:50:08,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:08,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051400312] [2024-11-24 00:50:08,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:08,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:08,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:09,004 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-24 00:50:09,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:09,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051400312] [2024-11-24 00:50:09,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051400312] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:50:09,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244513739] [2024-11-24 00:50:09,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:09,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:50:09,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:50:09,007 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:50:09,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-24 00:50:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:09,385 INFO L256 TraceCheckSpWp]: Trace formula consists of 1332 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:50:09,390 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:50:09,429 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-24 00:50:09,429 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:50:09,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244513739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:09,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:50:09,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-24 00:50:09,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870802193] [2024-11-24 00:50:09,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:09,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:50:09,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:09,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:50:09,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:50:09,432 INFO L87 Difference]: Start difference. First operand 1466 states and 2302 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) [2024-11-24 00:50:09,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:09,727 INFO L93 Difference]: Finished difference Result 2977 states and 4737 transitions. [2024-11-24 00:50:09,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:50:09,728 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 [2024-11-24 00:50:09,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:09,742 INFO L225 Difference]: With dead ends: 2977 [2024-11-24 00:50:09,742 INFO L226 Difference]: Without dead ends: 1556 [2024-11-24 00:50:09,749 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 [2024-11-24 00:50:09,750 INFO L435 NwaCegarLoop]: 788 mSDtfsCounter, 144 mSDsluCounter, 1553 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 2341 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 [2024-11-24 00:50:09,751 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 2341 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:50:09,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2024-11-24 00:50:09,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1544. [2024-11-24 00:50:09,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1544 states, 1209 states have (on average 1.5773366418527708) internal successors, (1907), 1240 states have internal predecessors, (1907), 241 states have call successors, (241), 91 states have call predecessors, (241), 93 states have return successors, (300), 236 states have call predecessors, (300), 237 states have call successors, (300) [2024-11-24 00:50:09,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 2448 transitions. [2024-11-24 00:50:09,848 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 2448 transitions. Word has length 155 [2024-11-24 00:50:09,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:09,848 INFO L471 AbstractCegarLoop]: Abstraction has 1544 states and 2448 transitions. [2024-11-24 00:50:09,849 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) [2024-11-24 00:50:09,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 2448 transitions. [2024-11-24 00:50:09,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-24 00:50:09,854 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:09,854 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] [2024-11-24 00:50:09,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-24 00:50:10,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-24 00:50:10,058 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:10,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:10,059 INFO L85 PathProgramCache]: Analyzing trace with hash 879064928, now seen corresponding path program 1 times [2024-11-24 00:50:10,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:10,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695347075] [2024-11-24 00:50:10,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:10,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:10,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:10,367 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-24 00:50:10,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:10,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695347075] [2024-11-24 00:50:10,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695347075] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:50:10,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369563696] [2024-11-24 00:50:10,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:10,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:50:10,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:50:10,370 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:50:10,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-24 00:50:10,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:10,719 INFO L256 TraceCheckSpWp]: Trace formula consists of 1337 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:50:10,722 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:50:10,765 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-24 00:50:10,765 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:50:10,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369563696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:10,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:50:10,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-24 00:50:10,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479054940] [2024-11-24 00:50:10,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:10,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:50:10,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:10,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:50:10,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:50:10,767 INFO L87 Difference]: Start difference. First operand 1544 states and 2448 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) [2024-11-24 00:50:11,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:11,065 INFO L93 Difference]: Finished difference Result 3139 states and 5031 transitions. [2024-11-24 00:50:11,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:50:11,066 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 [2024-11-24 00:50:11,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:11,079 INFO L225 Difference]: With dead ends: 3139 [2024-11-24 00:50:11,080 INFO L226 Difference]: Without dead ends: 1640 [2024-11-24 00:50:11,087 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 [2024-11-24 00:50:11,087 INFO L435 NwaCegarLoop]: 787 mSDtfsCounter, 142 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 2338 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 [2024-11-24 00:50:11,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 2338 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:50:11,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1640 states. [2024-11-24 00:50:11,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1640 to 1622. [2024-11-24 00:50:11,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1622 states, 1285 states have (on average 1.5976653696498055) internal successors, (2053), 1316 states have internal predecessors, (2053), 241 states have call successors, (241), 93 states have call predecessors, (241), 95 states have return successors, (300), 236 states have call predecessors, (300), 237 states have call successors, (300) [2024-11-24 00:50:11,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1622 states to 1622 states and 2594 transitions. [2024-11-24 00:50:11,218 INFO L78 Accepts]: Start accepts. Automaton has 1622 states and 2594 transitions. Word has length 160 [2024-11-24 00:50:11,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:11,220 INFO L471 AbstractCegarLoop]: Abstraction has 1622 states and 2594 transitions. [2024-11-24 00:50:11,221 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) [2024-11-24 00:50:11,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1622 states and 2594 transitions. [2024-11-24 00:50:11,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-24 00:50:11,227 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:11,227 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] [2024-11-24 00:50:11,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-24 00:50:11,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-24 00:50:11,428 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:11,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:11,428 INFO L85 PathProgramCache]: Analyzing trace with hash 185928208, now seen corresponding path program 1 times [2024-11-24 00:50:11,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:11,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540002321] [2024-11-24 00:50:11,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:11,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:11,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:11,733 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-24 00:50:11,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:11,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540002321] [2024-11-24 00:50:11,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540002321] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:50:11,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508037669] [2024-11-24 00:50:11,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:11,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:50:11,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:50:11,736 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:50:11,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-24 00:50:12,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:12,096 INFO L256 TraceCheckSpWp]: Trace formula consists of 1341 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:50:12,099 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:50:12,140 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-24 00:50:12,140 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:50:12,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508037669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:12,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:50:12,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-24 00:50:12,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301091234] [2024-11-24 00:50:12,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:12,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:50:12,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:12,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:50:12,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:50:12,142 INFO L87 Difference]: Start difference. First operand 1622 states and 2594 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) [2024-11-24 00:50:12,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:12,465 INFO L93 Difference]: Finished difference Result 3301 states and 5325 transitions. [2024-11-24 00:50:12,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:50:12,466 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 [2024-11-24 00:50:12,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:12,478 INFO L225 Difference]: With dead ends: 3301 [2024-11-24 00:50:12,478 INFO L226 Difference]: Without dead ends: 1724 [2024-11-24 00:50:12,484 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 [2024-11-24 00:50:12,485 INFO L435 NwaCegarLoop]: 786 mSDtfsCounter, 140 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 2335 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 [2024-11-24 00:50:12,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 2335 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:50:12,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1724 states. [2024-11-24 00:50:12,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1724 to 1700. [2024-11-24 00:50:12,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1700 states, 1361 states have (on average 1.615723732549596) internal successors, (2199), 1392 states have internal predecessors, (2199), 241 states have call successors, (241), 95 states have call predecessors, (241), 97 states have return successors, (300), 236 states have call predecessors, (300), 237 states have call successors, (300) [2024-11-24 00:50:12,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1700 states to 1700 states and 2740 transitions. [2024-11-24 00:50:12,576 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 2740 transitions. Word has length 164 [2024-11-24 00:50:12,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:12,577 INFO L471 AbstractCegarLoop]: Abstraction has 1700 states and 2740 transitions. [2024-11-24 00:50:12,577 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) [2024-11-24 00:50:12,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 2740 transitions. [2024-11-24 00:50:12,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-24 00:50:12,583 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:12,583 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] [2024-11-24 00:50:12,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-24 00:50:12,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-24 00:50:12,784 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:12,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:12,785 INFO L85 PathProgramCache]: Analyzing trace with hash 155729900, now seen corresponding path program 1 times [2024-11-24 00:50:12,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:12,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296075313] [2024-11-24 00:50:12,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:12,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:12,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:13,065 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-24 00:50:13,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:13,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296075313] [2024-11-24 00:50:13,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296075313] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:50:13,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002271716] [2024-11-24 00:50:13,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:13,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:50:13,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:50:13,068 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:50:13,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-24 00:50:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:13,433 INFO L256 TraceCheckSpWp]: Trace formula consists of 1344 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:50:13,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:50:13,483 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-24 00:50:13,483 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:50:13,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002271716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:13,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:50:13,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-24 00:50:13,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97074087] [2024-11-24 00:50:13,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:13,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:50:13,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:13,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:50:13,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:50:13,485 INFO L87 Difference]: Start difference. First operand 1700 states and 2740 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) [2024-11-24 00:50:13,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:13,813 INFO L93 Difference]: Finished difference Result 3463 states and 5619 transitions. [2024-11-24 00:50:13,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:50:13,814 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 [2024-11-24 00:50:13,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:13,839 INFO L225 Difference]: With dead ends: 3463 [2024-11-24 00:50:13,840 INFO L226 Difference]: Without dead ends: 1808 [2024-11-24 00:50:13,849 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 [2024-11-24 00:50:13,850 INFO L435 NwaCegarLoop]: 783 mSDtfsCounter, 138 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 2325 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 [2024-11-24 00:50:13,850 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 2325 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:50:13,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1808 states. [2024-11-24 00:50:13,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1808 to 1778. [2024-11-24 00:50:13,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1778 states, 1437 states have (on average 1.6318719554627696) internal successors, (2345), 1468 states have internal predecessors, (2345), 241 states have call successors, (241), 97 states have call predecessors, (241), 99 states have return successors, (300), 236 states have call predecessors, (300), 237 states have call successors, (300) [2024-11-24 00:50:13,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1778 states to 1778 states and 2886 transitions. [2024-11-24 00:50:13,986 INFO L78 Accepts]: Start accepts. Automaton has 1778 states and 2886 transitions. Word has length 167 [2024-11-24 00:50:13,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:13,987 INFO L471 AbstractCegarLoop]: Abstraction has 1778 states and 2886 transitions. [2024-11-24 00:50:13,987 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) [2024-11-24 00:50:13,987 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states and 2886 transitions. [2024-11-24 00:50:13,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-24 00:50:13,993 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:13,994 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:14,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-24 00:50:14,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-24 00:50:14,198 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:14,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:14,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1565132966, now seen corresponding path program 1 times [2024-11-24 00:50:14,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:14,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953342630] [2024-11-24 00:50:14,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:14,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:14,548 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-24 00:50:14,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:14,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953342630] [2024-11-24 00:50:14,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953342630] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:50:14,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055647789] [2024-11-24 00:50:14,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:14,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:50:14,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:50:14,552 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:50:14,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-24 00:50:14,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:14,950 INFO L256 TraceCheckSpWp]: Trace formula consists of 1340 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-24 00:50:14,955 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:50:15,247 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-24 00:50:15,248 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:50:15,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055647789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:15,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:50:15,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 14 [2024-11-24 00:50:15,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349634580] [2024-11-24 00:50:15,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:15,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:50:15,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:15,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:50:15,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:50:15,250 INFO L87 Difference]: Start difference. First operand 1778 states and 2886 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 7 states have internal predecessors, (108), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-24 00:50:18,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:18,901 INFO L93 Difference]: Finished difference Result 5533 states and 9135 transitions. [2024-11-24 00:50:18,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:50:18,902 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 7 states have internal predecessors, (108), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) Word has length 169 [2024-11-24 00:50:18,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:18,935 INFO L225 Difference]: With dead ends: 5533 [2024-11-24 00:50:18,935 INFO L226 Difference]: Without dead ends: 3436 [2024-11-24 00:50:18,946 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 [2024-11-24 00:50:18,947 INFO L435 NwaCegarLoop]: 356 mSDtfsCounter, 1933 mSDsluCounter, 1846 mSDsCounter, 0 mSdLazyCounter, 4012 mSolverCounterSat, 465 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2038 SdHoareTripleChecker+Valid, 2202 SdHoareTripleChecker+Invalid, 4477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 465 IncrementalHoareTripleChecker+Valid, 4012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:18,948 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2038 Valid, 2202 Invalid, 4477 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [465 Valid, 4012 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-24 00:50:18,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3436 states. [2024-11-24 00:50:19,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3436 to 3412. [2024-11-24 00:50:19,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3412 states, 2713 states have (on average 1.6373018798378178) internal successors, (4442), 2799 states have internal predecessors, (4442), 499 states have call successors, (499), 175 states have call predecessors, (499), 199 states have return successors, (647), 495 states have call predecessors, (647), 495 states have call successors, (647) [2024-11-24 00:50:19,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3412 states to 3412 states and 5588 transitions. [2024-11-24 00:50:19,163 INFO L78 Accepts]: Start accepts. Automaton has 3412 states and 5588 transitions. Word has length 169 [2024-11-24 00:50:19,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:19,165 INFO L471 AbstractCegarLoop]: Abstraction has 3412 states and 5588 transitions. [2024-11-24 00:50:19,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 7 states have internal predecessors, (108), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-24 00:50:19,166 INFO L276 IsEmpty]: Start isEmpty. Operand 3412 states and 5588 transitions. [2024-11-24 00:50:19,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-24 00:50:19,179 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:19,179 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:19,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-24 00:50:19,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-24 00:50:19,380 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:19,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:19,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1276501046, now seen corresponding path program 1 times [2024-11-24 00:50:19,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:19,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906970938] [2024-11-24 00:50:19,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:19,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:19,597 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-24 00:50:19,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:19,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906970938] [2024-11-24 00:50:19,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906970938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:19,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:50:19,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:50:19,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757704970] [2024-11-24 00:50:19,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:19,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:50:19,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:19,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:50:19,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:50:19,599 INFO L87 Difference]: Start difference. First operand 3412 states and 5588 transitions. Second operand has 8 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-24 00:50:19,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:19,863 INFO L93 Difference]: Finished difference Result 6650 states and 10917 transitions. [2024-11-24 00:50:19,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:50:19,864 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 172 [2024-11-24 00:50:19,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:19,888 INFO L225 Difference]: With dead ends: 6650 [2024-11-24 00:50:19,888 INFO L226 Difference]: Without dead ends: 3145 [2024-11-24 00:50:19,901 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 [2024-11-24 00:50:19,904 INFO L435 NwaCegarLoop]: 826 mSDtfsCounter, 32 mSDsluCounter, 4925 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 5751 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 [2024-11-24 00:50:19,904 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 5751 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:50:19,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3145 states. [2024-11-24 00:50:20,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3145 to 3133. [2024-11-24 00:50:20,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 2534 states have (on average 1.6562746645619575) internal successors, (4197), 2607 states have internal predecessors, (4197), 419 states have call successors, (419), 163 states have call predecessors, (419), 179 states have return successors, (517), 410 states have call predecessors, (517), 415 states have call successors, (517) [2024-11-24 00:50:20,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 5133 transitions. [2024-11-24 00:50:20,066 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 5133 transitions. Word has length 172 [2024-11-24 00:50:20,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:20,067 INFO L471 AbstractCegarLoop]: Abstraction has 3133 states and 5133 transitions. [2024-11-24 00:50:20,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-24 00:50:20,067 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 5133 transitions. [2024-11-24 00:50:20,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-11-24 00:50:20,087 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:20,087 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:20,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-24 00:50:20,087 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:20,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:20,088 INFO L85 PathProgramCache]: Analyzing trace with hash -577506605, now seen corresponding path program 1 times [2024-11-24 00:50:20,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:20,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735769076] [2024-11-24 00:50:20,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:20,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:20,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:21,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 36 proven. 99 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-24 00:50:21,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:21,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735769076] [2024-11-24 00:50:21,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735769076] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:50:21,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343913393] [2024-11-24 00:50:21,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:21,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:50:21,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:50:21,020 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:50:21,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-24 00:50:21,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:21,772 INFO L256 TraceCheckSpWp]: Trace formula consists of 3194 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 00:50:21,788 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:50:22,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 341 proven. 50 refuted. 0 times theorem prover too weak. 668 trivial. 0 not checked. [2024-11-24 00:50:22,177 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:50:23,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 57 proven. 93 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2024-11-24 00:50:23,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343913393] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:50:23,467 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:50:23,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 14] total 27 [2024-11-24 00:50:23,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151514863] [2024-11-24 00:50:23,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:50:23,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-24 00:50:23,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:23,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-24 00:50:23,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=611, Unknown=0, NotChecked=0, Total=702 [2024-11-24 00:50:23,472 INFO L87 Difference]: Start difference. First operand 3133 states and 5133 transitions. Second operand has 27 states, 25 states have (on average 14.68) internal successors, (367), 23 states have internal predecessors, (367), 17 states have call successors, (89), 8 states have call predecessors, (89), 14 states have return successors, (90), 20 states have call predecessors, (90), 17 states have call successors, (90) [2024-11-24 00:51:19,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:51:19,630 INFO L93 Difference]: Finished difference Result 34707 states and 58766 transitions. [2024-11-24 00:51:19,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 352 states. [2024-11-24 00:51:19,631 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 14.68) internal successors, (367), 23 states have internal predecessors, (367), 17 states have call successors, (89), 8 states have call predecessors, (89), 14 states have return successors, (90), 20 states have call predecessors, (90), 17 states have call successors, (90) Word has length 461 [2024-11-24 00:51:19,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:51:19,870 INFO L225 Difference]: With dead ends: 34707 [2024-11-24 00:51:19,871 INFO L226 Difference]: Without dead ends: 31256 [2024-11-24 00:51:19,963 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1379 GetRequests, 1007 SyntacticMatches, 4 SemanticMatches, 368 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60731 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=10952, Invalid=125578, Unknown=0, NotChecked=0, Total=136530 [2024-11-24 00:51:19,966 INFO L435 NwaCegarLoop]: 2561 mSDtfsCounter, 30889 mSDsluCounter, 21793 mSDsCounter, 0 mSdLazyCounter, 79126 mSolverCounterSat, 11229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30889 SdHoareTripleChecker+Valid, 24354 SdHoareTripleChecker+Invalid, 90355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 11229 IncrementalHoareTripleChecker+Valid, 79126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:51:19,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30889 Valid, 24354 Invalid, 90355 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [11229 Valid, 79126 Invalid, 0 Unknown, 0 Unchecked, 43.7s Time] [2024-11-24 00:51:20,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31256 states. [2024-11-24 00:51:22,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31256 to 26004. [2024-11-24 00:51:22,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26004 states, 21110 states have (on average 1.629512079583136) internal successors, (34399), 21668 states have internal predecessors, (34399), 3301 states have call successors, (3301), 1466 states have call predecessors, (3301), 1592 states have return successors, (4649), 3289 states have call predecessors, (4649), 3283 states have call successors, (4649) [2024-11-24 00:51:22,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26004 states to 26004 states and 42349 transitions. [2024-11-24 00:51:22,359 INFO L78 Accepts]: Start accepts. Automaton has 26004 states and 42349 transitions. Word has length 461 [2024-11-24 00:51:22,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:51:22,360 INFO L471 AbstractCegarLoop]: Abstraction has 26004 states and 42349 transitions. [2024-11-24 00:51:22,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 14.68) internal successors, (367), 23 states have internal predecessors, (367), 17 states have call successors, (89), 8 states have call predecessors, (89), 14 states have return successors, (90), 20 states have call predecessors, (90), 17 states have call successors, (90) [2024-11-24 00:51:22,360 INFO L276 IsEmpty]: Start isEmpty. Operand 26004 states and 42349 transitions. [2024-11-24 00:51:22,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2024-11-24 00:51:22,465 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:51:22,465 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:51:22,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-24 00:51:22,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-24 00:51:22,670 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:51:22,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:51:22,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1092110201, now seen corresponding path program 1 times [2024-11-24 00:51:22,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:51:22,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146161974] [2024-11-24 00:51:22,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:51:22,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:51:22,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:51:23,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1257 backedges. 61 proven. 70 refuted. 0 times theorem prover too weak. 1126 trivial. 0 not checked. [2024-11-24 00:51:23,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:51:23,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146161974] [2024-11-24 00:51:23,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146161974] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:51:23,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094130927] [2024-11-24 00:51:23,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:51:23,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:51:23,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:51:23,516 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:51:23,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-24 00:51:24,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:51:24,219 INFO L256 TraceCheckSpWp]: Trace formula consists of 3356 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 00:51:24,234 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:51:24,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1257 backedges. 659 proven. 0 refuted. 0 times theorem prover too weak. 598 trivial. 0 not checked. [2024-11-24 00:51:24,322 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:51:24,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094130927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:51:24,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:51:24,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-24 00:51:24,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433826367] [2024-11-24 00:51:24,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:51:24,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:51:24,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:51:24,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:51:24,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:51:24,325 INFO L87 Difference]: Start difference. First operand 26004 states and 42349 transitions. Second operand has 7 states, 7 states have (on average 32.57142857142857) internal successors, (228), 6 states have internal predecessors, (228), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (41), 3 states have call predecessors, (41), 2 states have call successors, (41) [2024-11-24 00:51:25,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:51:25,742 INFO L93 Difference]: Finished difference Result 52232 states and 85222 transitions. [2024-11-24 00:51:25,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:51:25,743 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 32.57142857142857) internal successors, (228), 6 states have internal predecessors, (228), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (41), 3 states have call predecessors, (41), 2 states have call successors, (41) Word has length 515 [2024-11-24 00:51:25,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:51:25,900 INFO L225 Difference]: With dead ends: 52232 [2024-11-24 00:51:25,900 INFO L226 Difference]: Without dead ends: 26310 [2024-11-24 00:51:26,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 515 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:51:26,017 INFO L435 NwaCegarLoop]: 846 mSDtfsCounter, 0 mSDsluCounter, 4211 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5057 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:51:26,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5057 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:51:26,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26310 states. [2024-11-24 00:51:27,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26310 to 26184. [2024-11-24 00:51:27,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26184 states, 21252 states have (on average 1.625305853566723) internal successors, (34541), 21826 states have internal predecessors, (34541), 3301 states have call successors, (3301), 1466 states have call predecessors, (3301), 1630 states have return successors, (4694), 3311 states have call predecessors, (4694), 3283 states have call successors, (4694) [2024-11-24 00:51:27,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26184 states to 26184 states and 42536 transitions. [2024-11-24 00:51:27,526 INFO L78 Accepts]: Start accepts. Automaton has 26184 states and 42536 transitions. Word has length 515 [2024-11-24 00:51:27,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:51:27,527 INFO L471 AbstractCegarLoop]: Abstraction has 26184 states and 42536 transitions. [2024-11-24 00:51:27,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 32.57142857142857) internal successors, (228), 6 states have internal predecessors, (228), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (41), 3 states have call predecessors, (41), 2 states have call successors, (41) [2024-11-24 00:51:27,527 INFO L276 IsEmpty]: Start isEmpty. Operand 26184 states and 42536 transitions. [2024-11-24 00:51:27,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2024-11-24 00:51:27,611 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:51:27,611 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:51:27,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-24 00:51:27,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-24 00:51:27,815 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:51:27,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:51:27,816 INFO L85 PathProgramCache]: Analyzing trace with hash 140038847, now seen corresponding path program 1 times [2024-11-24 00:51:27,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:51:27,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446586797] [2024-11-24 00:51:27,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:51:27,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:51:27,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:51:28,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1158 backedges. 61 proven. 60 refuted. 0 times theorem prover too weak. 1037 trivial. 0 not checked. [2024-11-24 00:51:28,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:51:28,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446586797] [2024-11-24 00:51:28,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446586797] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:51:28,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105777722] [2024-11-24 00:51:28,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:51:28,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:51:28,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:51:28,642 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:51:28,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-24 00:51:29,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:51:29,370 INFO L256 TraceCheckSpWp]: Trace formula consists of 3423 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 00:51:29,383 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:51:29,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1158 backedges. 703 proven. 0 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2024-11-24 00:51:29,538 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:51:29,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105777722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:51:29,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:51:29,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2024-11-24 00:51:29,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126340337] [2024-11-24 00:51:29,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:51:29,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:51:29,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:51:29,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:51:29,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:51:29,541 INFO L87 Difference]: Start difference. First operand 26184 states and 42536 transitions. Second operand has 8 states, 7 states have (on average 38.42857142857143) internal successors, (269), 7 states have internal predecessors, (269), 4 states have call successors, (49), 3 states have call predecessors, (49), 5 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2024-11-24 00:51:33,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:51:33,072 INFO L93 Difference]: Finished difference Result 71862 states and 117475 transitions. [2024-11-24 00:51:33,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 00:51:33,073 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 38.42857142857143) internal successors, (269), 7 states have internal predecessors, (269), 4 states have call successors, (49), 3 states have call predecessors, (49), 5 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) Word has length 532 [2024-11-24 00:51:33,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:51:33,381 INFO L225 Difference]: With dead ends: 71862 [2024-11-24 00:51:33,382 INFO L226 Difference]: Without dead ends: 47962 [2024-11-24 00:51:33,521 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 553 GetRequests, 534 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:51:33,522 INFO L435 NwaCegarLoop]: 821 mSDtfsCounter, 814 mSDsluCounter, 4175 mSDsCounter, 0 mSdLazyCounter, 1155 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 4996 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:51:33,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 4996 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1155 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 00:51:33,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47962 states. [2024-11-24 00:51:35,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47962 to 47680. [2024-11-24 00:51:35,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47680 states, 38667 states have (on average 1.633485918224843) internal successors, (63162), 39798 states have internal predecessors, (63162), 5988 states have call successors, (5988), 2651 states have call predecessors, (5988), 3024 states have return successors, (9024), 6046 states have call predecessors, (9024), 5959 states have call successors, (9024) [2024-11-24 00:51:36,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47680 states to 47680 states and 78174 transitions. [2024-11-24 00:51:36,287 INFO L78 Accepts]: Start accepts. Automaton has 47680 states and 78174 transitions. Word has length 532 [2024-11-24 00:51:36,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:51:36,287 INFO L471 AbstractCegarLoop]: Abstraction has 47680 states and 78174 transitions. [2024-11-24 00:51:36,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 38.42857142857143) internal successors, (269), 7 states have internal predecessors, (269), 4 states have call successors, (49), 3 states have call predecessors, (49), 5 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2024-11-24 00:51:36,288 INFO L276 IsEmpty]: Start isEmpty. Operand 47680 states and 78174 transitions. [2024-11-24 00:51:36,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2024-11-24 00:51:36,679 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:51:36,679 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 12, 11, 11, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:51:36,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-24 00:51:36,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-24 00:51:36,884 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:51:36,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:51:36,885 INFO L85 PathProgramCache]: Analyzing trace with hash 528986902, now seen corresponding path program 1 times [2024-11-24 00:51:36,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:51:36,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817643797] [2024-11-24 00:51:36,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:51:36,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:51:36,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:51:37,839 INFO L134 CoverageAnalysis]: Checked inductivity of 1580 backedges. 90 proven. 92 refuted. 0 times theorem prover too weak. 1398 trivial. 0 not checked. [2024-11-24 00:51:37,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:51:37,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817643797] [2024-11-24 00:51:37,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817643797] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:51:37,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154216532] [2024-11-24 00:51:37,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:51:37,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:51:37,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:51:37,843 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:51:37,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44a8b206-72c2-4aa6-82db-08cf1cbcf211/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-24 00:51:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:51:38,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 3466 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-24 00:51:38,616 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:51:39,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1580 backedges. 1028 proven. 25 refuted. 0 times theorem prover too weak. 527 trivial. 0 not checked. [2024-11-24 00:51:39,168 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:51:40,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1580 backedges. 117 proven. 99 refuted. 0 times theorem prover too weak. 1364 trivial. 0 not checked. [2024-11-24 00:51:40,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154216532] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:51:40,284 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:51:40,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 24 [2024-11-24 00:51:40,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316771414] [2024-11-24 00:51:40,285 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:51:40,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-24 00:51:40,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:51:40,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-24 00:51:40,288 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2024-11-24 00:51:40,289 INFO L87 Difference]: Start difference. First operand 47680 states and 78174 transitions. Second operand has 24 states, 21 states have (on average 23.761904761904763) internal successors, (499), 22 states have internal predecessors, (499), 17 states have call successors, (125), 8 states have call predecessors, (125), 15 states have return successors, (124), 16 states have call predecessors, (124), 17 states have call successors, (124) [2024-11-24 00:52:03,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:52:03,547 INFO L93 Difference]: Finished difference Result 176693 states and 300380 transitions. [2024-11-24 00:52:03,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2024-11-24 00:52:03,548 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 23.761904761904763) internal successors, (499), 22 states have internal predecessors, (499), 17 states have call successors, (125), 8 states have call predecessors, (125), 15 states have return successors, (124), 16 states have call predecessors, (124), 17 states have call successors, (124) Word has length 555 [2024-11-24 00:52:03,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:52:04,669 INFO L225 Difference]: With dead ends: 176693 [2024-11-24 00:52:04,669 INFO L226 Difference]: Without dead ends: 131769 [2024-11-24 00:52:05,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1215 GetRequests, 1126 SyntacticMatches, 4 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2261 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1262, Invalid=6220, Unknown=0, NotChecked=0, Total=7482 [2024-11-24 00:52:05,258 INFO L435 NwaCegarLoop]: 676 mSDtfsCounter, 11379 mSDsluCounter, 6705 mSDsCounter, 0 mSdLazyCounter, 20062 mSolverCounterSat, 4116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11379 SdHoareTripleChecker+Valid, 7381 SdHoareTripleChecker+Invalid, 24178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4116 IncrementalHoareTripleChecker+Valid, 20062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:52:05,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11379 Valid, 7381 Invalid, 24178 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4116 Valid, 20062 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2024-11-24 00:52:05,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131769 states.