./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec14_product19.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/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_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec14_product19.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/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_1062bda8-3635-4a2c-b740-32d2e7cbee3e/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 5643166a994eeb2bd259cf18f0a4b43a93b8e6b433c116ad537f0a1a02a75ec3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:35:05,780 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:35:05,846 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:35:05,853 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:35:05,853 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:35:05,881 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:35:05,882 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:35:05,883 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:35:05,883 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:35:05,883 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:35:05,883 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:35:05,883 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:35:05,884 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:35:05,884 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:35:05,884 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:35:05,884 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:35:05,885 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:35:05,885 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:35:05,885 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:35:05,885 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:35:05,885 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:35:05,886 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:35:05,886 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:35:05,886 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:35:05,886 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:35:05,886 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:35:05,886 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:35:05,887 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:35:05,887 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:35:05,887 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:35:05,887 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:35:05,887 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:35:05,887 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:35:05,888 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:35:05,888 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:35:05,888 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:35:05,888 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:35:05,888 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:35:05,888 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:35:05,888 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:35:05,888 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:35:05,888 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:35:05,889 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:35:05,889 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:35:05,889 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:35:05,889 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:35:05,889 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:35:05,889 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:35:05,889 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_1062bda8-3635-4a2c-b740-32d2e7cbee3e/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 -> 5643166a994eeb2bd259cf18f0a4b43a93b8e6b433c116ad537f0a1a02a75ec3 [2024-11-23 23:35:06,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:35:06,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:35:06,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:35:06,287 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:35:06,287 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:35:06,290 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/product-lines/elevator_spec14_product19.cil.c [2024-11-23 23:35:09,475 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/data/cab502855/938f1a1361924b51beb976ff0ec2cfeb/FLAG351758396 [2024-11-23 23:35:09,960 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:35:09,961 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/sv-benchmarks/c/product-lines/elevator_spec14_product19.cil.c [2024-11-23 23:35:09,992 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/data/cab502855/938f1a1361924b51beb976ff0ec2cfeb/FLAG351758396 [2024-11-23 23:35:10,018 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/data/cab502855/938f1a1361924b51beb976ff0ec2cfeb [2024-11-23 23:35:10,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:35:10,025 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:35:10,028 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:35:10,029 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:35:10,043 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:35:10,044 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:35:10" (1/1) ... [2024-11-23 23:35:10,045 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ef6f53e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:10, skipping insertion in model container [2024-11-23 23:35:10,047 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:35:10" (1/1) ... [2024-11-23 23:35:10,135 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:35:10,795 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_1062bda8-3635-4a2c-b740-32d2e7cbee3e/sv-benchmarks/c/product-lines/elevator_spec14_product19.cil.c[49225,49238] [2024-11-23 23:35:10,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:35:10,897 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:35:10,907 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [48] [2024-11-23 23:35:10,908 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1591] [2024-11-23 23:35:10,909 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [1685] [2024-11-23 23:35:10,909 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1722] [2024-11-23 23:35:10,909 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1740] [2024-11-23 23:35:10,909 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2106] [2024-11-23 23:35:10,910 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [2144] [2024-11-23 23:35:10,910 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2262] [2024-11-23 23:35:10,910 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2271] [2024-11-23 23:35:10,910 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2619] [2024-11-23 23:35:11,023 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_1062bda8-3635-4a2c-b740-32d2e7cbee3e/sv-benchmarks/c/product-lines/elevator_spec14_product19.cil.c[49225,49238] [2024-11-23 23:35:11,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:35:11,086 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:35:11,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:11 WrapperNode [2024-11-23 23:35:11,087 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:35:11,089 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:35:11,089 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:35:11,089 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:35:11,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:11" (1/1) ... [2024-11-23 23:35:11,121 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:11" (1/1) ... [2024-11-23 23:35:11,179 INFO L138 Inliner]: procedures = 91, calls = 333, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 1049 [2024-11-23 23:35:11,179 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:35:11,180 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:35:11,180 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:35:11,180 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:35:11,191 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:11" (1/1) ... [2024-11-23 23:35:11,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:11" (1/1) ... [2024-11-23 23:35:11,198 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:11" (1/1) ... [2024-11-23 23:35:11,232 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-11-23 23:35:11,233 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:11" (1/1) ... [2024-11-23 23:35:11,233 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:11" (1/1) ... [2024-11-23 23:35:11,275 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:11" (1/1) ... [2024-11-23 23:35:11,281 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:11" (1/1) ... [2024-11-23 23:35:11,295 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:11" (1/1) ... [2024-11-23 23:35:11,300 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:11" (1/1) ... [2024-11-23 23:35:11,304 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:11" (1/1) ... [2024-11-23 23:35:11,313 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:35:11,314 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:35:11,314 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:35:11,314 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:35:11,315 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:11" (1/1) ... [2024-11-23 23:35:11,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:35:11,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:35:11,399 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:35:11,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:35:11,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:35:11,446 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-23 23:35:11,446 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-23 23:35:11,446 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-23 23:35:11,446 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-23 23:35:11,446 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2024-11-23 23:35:11,446 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2024-11-23 23:35:11,447 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-23 23:35:11,447 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-23 23:35:11,447 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-11-23 23:35:11,447 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-11-23 23:35:11,448 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-23 23:35:11,449 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-23 23:35:11,449 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2024-11-23 23:35:11,449 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2024-11-23 23:35:11,449 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-23 23:35:11,449 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-23 23:35:11,449 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-23 23:35:11,449 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-23 23:35:11,449 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-23 23:35:11,449 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-23 23:35:11,450 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-23 23:35:11,450 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-23 23:35:11,450 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-23 23:35:11,450 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-23 23:35:11,450 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-23 23:35:11,450 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-23 23:35:11,450 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-23 23:35:11,450 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-23 23:35:11,451 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-23 23:35:11,451 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-23 23:35:11,451 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-23 23:35:11,451 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-23 23:35:11,452 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-23 23:35:11,452 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-23 23:35:11,452 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-23 23:35:11,453 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-23 23:35:11,453 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-23 23:35:11,453 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-23 23:35:11,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:35:11,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 23:35:11,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 23:35:11,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 23:35:11,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-23 23:35:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-23 23:35:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-23 23:35:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-23 23:35:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-23 23:35:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-23 23:35:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-23 23:35:11,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-23 23:35:11,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-23 23:35:11,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-23 23:35:11,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-23 23:35:11,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-23 23:35:11,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-23 23:35:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-23 23:35:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-23 23:35:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-23 23:35:11,458 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-23 23:35:11,458 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-23 23:35:11,458 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-23 23:35:11,458 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-23 23:35:11,458 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-23 23:35:11,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-23 23:35:11,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:35:11,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:35:11,459 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-23 23:35:11,459 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-23 23:35:11,698 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:35:11,701 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:35:13,428 INFO L? ?]: Removed 440 outVars from TransFormulas that were not future-live. [2024-11-23 23:35:13,429 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:35:13,453 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:35:13,453 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 23:35:13,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:35:13 BoogieIcfgContainer [2024-11-23 23:35:13,454 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:35:13,456 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:35:13,456 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:35:13,464 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:35:13,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:35:10" (1/3) ... [2024-11-23 23:35:13,465 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b319457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:35:13, skipping insertion in model container [2024-11-23 23:35:13,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:11" (2/3) ... [2024-11-23 23:35:13,466 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b319457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:35:13, skipping insertion in model container [2024-11-23 23:35:13,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:35:13" (3/3) ... [2024-11-23 23:35:13,468 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product19.cil.c [2024-11-23 23:35:13,484 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:35:13,486 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec14_product19.cil.c that has 24 procedures, 531 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 23:35:13,578 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:35:13,596 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;@6d9e473c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:35:13,596 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:35:13,605 INFO L276 IsEmpty]: Start isEmpty. Operand has 531 states, 413 states have (on average 1.6779661016949152) internal successors, (693), 429 states have internal predecessors, (693), 93 states have call successors, (93), 23 states have call predecessors, (93), 23 states have return successors, (93), 91 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-23 23:35:13,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-23 23:35:13,650 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:13,655 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:13,656 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:13,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:13,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1894952022, now seen corresponding path program 1 times [2024-11-23 23:35:13,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:13,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449272377] [2024-11-23 23:35:13,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:13,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:13,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:14,564 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:35:14,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:14,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449272377] [2024-11-23 23:35:14,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449272377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:14,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:35:14,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:35:14,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981724039] [2024-11-23 23:35:14,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:14,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:35:14,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:14,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:35:14,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:35:14,602 INFO L87 Difference]: Start difference. First operand has 531 states, 413 states have (on average 1.6779661016949152) internal successors, (693), 429 states have internal predecessors, (693), 93 states have call successors, (93), 23 states have call predecessors, (93), 23 states have return successors, (93), 91 states have call predecessors, (93), 93 states have call successors, (93) Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:35:14,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:14,915 INFO L93 Difference]: Finished difference Result 1055 states and 1758 transitions. [2024-11-23 23:35:14,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:35:14,918 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 101 [2024-11-23 23:35:14,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:14,934 INFO L225 Difference]: With dead ends: 1055 [2024-11-23 23:35:14,934 INFO L226 Difference]: Without dead ends: 526 [2024-11-23 23:35:14,950 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:35:14,953 INFO L435 NwaCegarLoop]: 862 mSDtfsCounter, 6 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2580 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 [2024-11-23 23:35:14,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2580 Invalid, 42 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:35:14,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2024-11-23 23:35:15,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2024-11-23 23:35:15,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 409 states have (on average 1.667481662591687) internal successors, (682), 424 states have internal predecessors, (682), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-23 23:35:15,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 867 transitions. [2024-11-23 23:35:15,064 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 867 transitions. Word has length 101 [2024-11-23 23:35:15,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:15,064 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 867 transitions. [2024-11-23 23:35:15,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:35:15,065 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 867 transitions. [2024-11-23 23:35:15,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-23 23:35:15,072 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:15,072 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:15,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:35:15,073 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:15,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:15,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1558104089, now seen corresponding path program 1 times [2024-11-23 23:35:15,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:15,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181296170] [2024-11-23 23:35:15,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:15,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:15,481 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:35:15,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:15,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181296170] [2024-11-23 23:35:15,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181296170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:15,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:35:15,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:35:15,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426409410] [2024-11-23 23:35:15,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:15,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:35:15,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:15,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:35:15,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:35:15,487 INFO L87 Difference]: Start difference. First operand 526 states and 867 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:35:15,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:15,612 INFO L93 Difference]: Finished difference Result 1035 states and 1711 transitions. [2024-11-23 23:35:15,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:35:15,614 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 102 [2024-11-23 23:35:15,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:15,625 INFO L225 Difference]: With dead ends: 1035 [2024-11-23 23:35:15,625 INFO L226 Difference]: Without dead ends: 526 [2024-11-23 23:35:15,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:35:15,633 INFO L435 NwaCegarLoop]: 853 mSDtfsCounter, 4 mSDsluCounter, 1699 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2552 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 [2024-11-23 23:35:15,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2552 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:35:15,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2024-11-23 23:35:15,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2024-11-23 23:35:15,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 409 states have (on average 1.6650366748166259) internal successors, (681), 424 states have internal predecessors, (681), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-23 23:35:15,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 866 transitions. [2024-11-23 23:35:15,717 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 866 transitions. Word has length 102 [2024-11-23 23:35:15,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:15,719 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 866 transitions. [2024-11-23 23:35:15,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:35:15,719 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 866 transitions. [2024-11-23 23:35:15,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 23:35:15,730 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:15,730 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:15,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:35:15,730 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:15,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:15,732 INFO L85 PathProgramCache]: Analyzing trace with hash -246593594, now seen corresponding path program 1 times [2024-11-23 23:35:15,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:15,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009118194] [2024-11-23 23:35:15,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:15,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:15,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:16,069 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:35:16,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:16,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009118194] [2024-11-23 23:35:16,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009118194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:16,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:35:16,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:35:16,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053878037] [2024-11-23 23:35:16,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:16,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:35:16,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:16,071 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:35:16,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:35:16,073 INFO L87 Difference]: Start difference. First operand 526 states and 866 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:35:16,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:16,204 INFO L93 Difference]: Finished difference Result 1035 states and 1710 transitions. [2024-11-23 23:35:16,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:35:16,205 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2024-11-23 23:35:16,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:16,211 INFO L225 Difference]: With dead ends: 1035 [2024-11-23 23:35:16,211 INFO L226 Difference]: Without dead ends: 526 [2024-11-23 23:35:16,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:35:16,219 INFO L435 NwaCegarLoop]: 853 mSDtfsCounter, 3 mSDsluCounter, 1699 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2552 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:35:16,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2552 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:35:16,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2024-11-23 23:35:16,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2024-11-23 23:35:16,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 409 states have (on average 1.662591687041565) internal successors, (680), 424 states have internal predecessors, (680), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-23 23:35:16,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 865 transitions. [2024-11-23 23:35:16,273 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 865 transitions. Word has length 103 [2024-11-23 23:35:16,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:16,275 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 865 transitions. [2024-11-23 23:35:16,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:35:16,275 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 865 transitions. [2024-11-23 23:35:16,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-23 23:35:16,281 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:16,281 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:16,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:35:16,282 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:16,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:16,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1214685251, now seen corresponding path program 1 times [2024-11-23 23:35:16,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:16,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339342774] [2024-11-23 23:35:16,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:16,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:16,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:16,542 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:35:16,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:16,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339342774] [2024-11-23 23:35:16,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339342774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:16,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:35:16,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:35:16,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061081948] [2024-11-23 23:35:16,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:16,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:35:16,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:16,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:35:16,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:35:16,544 INFO L87 Difference]: Start difference. First operand 526 states and 865 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:35:16,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:16,638 INFO L93 Difference]: Finished difference Result 1035 states and 1709 transitions. [2024-11-23 23:35:16,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:35:16,639 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2024-11-23 23:35:16,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:16,645 INFO L225 Difference]: With dead ends: 1035 [2024-11-23 23:35:16,645 INFO L226 Difference]: Without dead ends: 526 [2024-11-23 23:35:16,649 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:35:16,651 INFO L435 NwaCegarLoop]: 853 mSDtfsCounter, 2 mSDsluCounter, 1699 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2552 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:35:16,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2552 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:35:16,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2024-11-23 23:35:16,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2024-11-23 23:35:16,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 409 states have (on average 1.6601466992665037) internal successors, (679), 424 states have internal predecessors, (679), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-23 23:35:16,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 864 transitions. [2024-11-23 23:35:16,696 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 864 transitions. Word has length 104 [2024-11-23 23:35:16,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:16,697 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 864 transitions. [2024-11-23 23:35:16,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:35:16,698 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 864 transitions. [2024-11-23 23:35:16,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-23 23:35:16,706 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:16,706 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:16,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:35:16,706 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:16,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:16,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1271151646, now seen corresponding path program 1 times [2024-11-23 23:35:16,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:16,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688768471] [2024-11-23 23:35:16,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:16,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:16,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:16,965 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:35:16,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:16,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688768471] [2024-11-23 23:35:16,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688768471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:16,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:35:16,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:35:16,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153234896] [2024-11-23 23:35:16,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:16,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:35:16,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:16,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:35:16,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:35:16,970 INFO L87 Difference]: Start difference. First operand 526 states and 864 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:35:17,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:17,047 INFO L93 Difference]: Finished difference Result 1035 states and 1708 transitions. [2024-11-23 23:35:17,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:35:17,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2024-11-23 23:35:17,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:17,056 INFO L225 Difference]: With dead ends: 1035 [2024-11-23 23:35:17,056 INFO L226 Difference]: Without dead ends: 526 [2024-11-23 23:35:17,060 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:35:17,061 INFO L435 NwaCegarLoop]: 853 mSDtfsCounter, 1 mSDsluCounter, 1699 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2552 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:35:17,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2552 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:35:17,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2024-11-23 23:35:17,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2024-11-23 23:35:17,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 409 states have (on average 1.6577017114914425) internal successors, (678), 424 states have internal predecessors, (678), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-23 23:35:17,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 863 transitions. [2024-11-23 23:35:17,118 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 863 transitions. Word has length 105 [2024-11-23 23:35:17,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:17,118 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 863 transitions. [2024-11-23 23:35:17,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:35:17,119 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 863 transitions. [2024-11-23 23:35:17,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-23 23:35:17,123 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:17,123 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:17,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:35:17,124 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:17,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:17,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1563524961, now seen corresponding path program 1 times [2024-11-23 23:35:17,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:17,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009142467] [2024-11-23 23:35:17,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:17,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:17,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:17,506 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:35:17,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:17,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009142467] [2024-11-23 23:35:17,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009142467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:17,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:35:17,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 23:35:17,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698662882] [2024-11-23 23:35:17,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:17,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:35:17,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:17,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:35:17,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:35:17,511 INFO L87 Difference]: Start difference. First operand 526 states and 863 transitions. Second operand has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-23 23:35:17,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:17,676 INFO L93 Difference]: Finished difference Result 1046 states and 1725 transitions. [2024-11-23 23:35:17,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:35:17,679 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 106 [2024-11-23 23:35:17,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:17,690 INFO L225 Difference]: With dead ends: 1046 [2024-11-23 23:35:17,690 INFO L226 Difference]: Without dead ends: 541 [2024-11-23 23:35:17,694 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:35:17,696 INFO L435 NwaCegarLoop]: 850 mSDtfsCounter, 91 mSDsluCounter, 4165 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 5015 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:35:17,696 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 5015 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:35:17,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-23 23:35:17,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 539. [2024-11-23 23:35:17,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 419 states have (on average 1.6539379474940334) internal successors, (693), 436 states have internal predecessors, (693), 94 states have call successors, (94), 24 states have call predecessors, (94), 25 states have return successors, (96), 91 states have call predecessors, (96), 93 states have call successors, (96) [2024-11-23 23:35:17,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 883 transitions. [2024-11-23 23:35:17,739 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 883 transitions. Word has length 106 [2024-11-23 23:35:17,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:17,739 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 883 transitions. [2024-11-23 23:35:17,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-23 23:35:17,739 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 883 transitions. [2024-11-23 23:35:17,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-23 23:35:17,745 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:17,746 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:17,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:35:17,746 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:17,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:17,747 INFO L85 PathProgramCache]: Analyzing trace with hash -624993346, now seen corresponding path program 1 times [2024-11-23 23:35:17,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:17,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070530233] [2024-11-23 23:35:17,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:17,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:17,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:17,934 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:35:17,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:17,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070530233] [2024-11-23 23:35:17,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070530233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:17,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:35:17,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:35:17,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818951468] [2024-11-23 23:35:17,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:17,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:35:17,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:17,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:35:17,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:35:17,936 INFO L87 Difference]: Start difference. First operand 539 states and 883 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:35:18,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:18,052 INFO L93 Difference]: Finished difference Result 1053 states and 1736 transitions. [2024-11-23 23:35:18,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:35:18,053 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2024-11-23 23:35:18,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:18,059 INFO L225 Difference]: With dead ends: 1053 [2024-11-23 23:35:18,059 INFO L226 Difference]: Without dead ends: 535 [2024-11-23 23:35:18,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:35:18,069 INFO L435 NwaCegarLoop]: 851 mSDtfsCounter, 1 mSDsluCounter, 1696 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2547 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 [2024-11-23 23:35:18,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2547 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:35:18,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-11-23 23:35:18,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2024-11-23 23:35:18,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 417 states have (on average 1.6546762589928057) internal successors, (690), 433 states have internal predecessors, (690), 93 states have call successors, (93), 24 states have call predecessors, (93), 24 states have return successors, (93), 90 states have call predecessors, (93), 92 states have call successors, (93) [2024-11-23 23:35:18,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 876 transitions. [2024-11-23 23:35:18,112 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 876 transitions. Word has length 106 [2024-11-23 23:35:18,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:18,112 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 876 transitions. [2024-11-23 23:35:18,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:35:18,113 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 876 transitions. [2024-11-23 23:35:18,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-23 23:35:18,117 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:18,117 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:18,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:35:18,118 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:18,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:18,118 INFO L85 PathProgramCache]: Analyzing trace with hash 653588844, now seen corresponding path program 1 times [2024-11-23 23:35:18,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:18,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586118041] [2024-11-23 23:35:18,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:18,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:18,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:18,389 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:35:18,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:18,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586118041] [2024-11-23 23:35:18,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586118041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:18,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:35:18,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:35:18,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860590095] [2024-11-23 23:35:18,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:18,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:35:18,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:18,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:35:18,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:35:18,392 INFO L87 Difference]: Start difference. First operand 535 states and 876 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:35:18,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:18,768 INFO L93 Difference]: Finished difference Result 1096 states and 1808 transitions. [2024-11-23 23:35:18,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:35:18,769 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 107 [2024-11-23 23:35:18,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:18,774 INFO L225 Difference]: With dead ends: 1096 [2024-11-23 23:35:18,775 INFO L226 Difference]: Without dead ends: 567 [2024-11-23 23:35:18,778 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:35:18,779 INFO L435 NwaCegarLoop]: 825 mSDtfsCounter, 72 mSDsluCounter, 3221 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 4046 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 [2024-11-23 23:35:18,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 4046 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:35:18,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2024-11-23 23:35:18,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 540. [2024-11-23 23:35:18,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 422 states have (on average 1.6398104265402844) internal successors, (692), 437 states have internal predecessors, (692), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-23 23:35:18,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 877 transitions. [2024-11-23 23:35:18,812 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 877 transitions. Word has length 107 [2024-11-23 23:35:18,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:18,813 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 877 transitions. [2024-11-23 23:35:18,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:35:18,813 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 877 transitions. [2024-11-23 23:35:18,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-23 23:35:18,817 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:18,817 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:18,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:35:18,818 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:18,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:18,819 INFO L85 PathProgramCache]: Analyzing trace with hash -6139934, now seen corresponding path program 1 times [2024-11-23 23:35:18,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:18,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385875917] [2024-11-23 23:35:18,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:18,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:19,068 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:35:19,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:19,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385875917] [2024-11-23 23:35:19,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385875917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:19,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:35:19,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:35:19,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358233464] [2024-11-23 23:35:19,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:19,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:35:19,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:19,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:35:19,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:35:19,071 INFO L87 Difference]: Start difference. First operand 540 states and 877 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:35:19,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:19,366 INFO L93 Difference]: Finished difference Result 1047 states and 1703 transitions. [2024-11-23 23:35:19,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:35:19,367 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2024-11-23 23:35:19,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:19,373 INFO L225 Difference]: With dead ends: 1047 [2024-11-23 23:35:19,373 INFO L226 Difference]: Without dead ends: 558 [2024-11-23 23:35:19,376 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:35:19,377 INFO L435 NwaCegarLoop]: 814 mSDtfsCounter, 56 mSDsluCounter, 3209 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 4023 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 [2024-11-23 23:35:19,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 4023 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:35:19,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2024-11-23 23:35:19,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 540. [2024-11-23 23:35:19,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 422 states have (on average 1.6303317535545023) internal successors, (688), 437 states have internal predecessors, (688), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-23 23:35:19,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 873 transitions. [2024-11-23 23:35:19,408 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 873 transitions. Word has length 108 [2024-11-23 23:35:19,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:19,409 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 873 transitions. [2024-11-23 23:35:19,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:35:19,409 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 873 transitions. [2024-11-23 23:35:19,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:35:19,413 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:19,413 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:19,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:35:19,413 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:19,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:19,414 INFO L85 PathProgramCache]: Analyzing trace with hash -2113206031, now seen corresponding path program 1 times [2024-11-23 23:35:19,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:19,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328609605] [2024-11-23 23:35:19,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:19,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:19,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:19,643 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:35:19,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:19,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328609605] [2024-11-23 23:35:19,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328609605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:19,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:35:19,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:35:19,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874983611] [2024-11-23 23:35:19,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:19,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:35:19,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:19,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:35:19,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:35:19,646 INFO L87 Difference]: Start difference. First operand 540 states and 873 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:35:19,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:19,944 INFO L93 Difference]: Finished difference Result 1047 states and 1699 transitions. [2024-11-23 23:35:19,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:35:19,945 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2024-11-23 23:35:19,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:19,951 INFO L225 Difference]: With dead ends: 1047 [2024-11-23 23:35:19,951 INFO L226 Difference]: Without dead ends: 558 [2024-11-23 23:35:19,954 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:35:19,955 INFO L435 NwaCegarLoop]: 813 mSDtfsCounter, 55 mSDsluCounter, 3205 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4018 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 [2024-11-23 23:35:19,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4018 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:35:19,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2024-11-23 23:35:19,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 540. [2024-11-23 23:35:19,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 422 states have (on average 1.6208530805687205) internal successors, (684), 437 states have internal predecessors, (684), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-23 23:35:19,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 869 transitions. [2024-11-23 23:35:19,985 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 869 transitions. Word has length 109 [2024-11-23 23:35:19,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:19,986 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 869 transitions. [2024-11-23 23:35:19,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:35:19,986 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 869 transitions. [2024-11-23 23:35:19,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:35:19,990 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:19,990 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:19,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 23:35:19,990 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:19,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:19,991 INFO L85 PathProgramCache]: Analyzing trace with hash -324999823, now seen corresponding path program 1 times [2024-11-23 23:35:19,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:19,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055563413] [2024-11-23 23:35:19,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:19,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:20,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:20,221 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:35:20,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:20,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055563413] [2024-11-23 23:35:20,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055563413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:20,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:35:20,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 23:35:20,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296800418] [2024-11-23 23:35:20,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:20,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:35:20,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:20,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:35:20,223 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:35:20,224 INFO L87 Difference]: Start difference. First operand 540 states and 869 transitions. Second operand has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-23 23:35:20,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:20,356 INFO L93 Difference]: Finished difference Result 1038 states and 1681 transitions. [2024-11-23 23:35:20,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:35:20,357 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 109 [2024-11-23 23:35:20,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:20,362 INFO L225 Difference]: With dead ends: 1038 [2024-11-23 23:35:20,362 INFO L226 Difference]: Without dead ends: 528 [2024-11-23 23:35:20,365 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:35:20,366 INFO L435 NwaCegarLoop]: 839 mSDtfsCounter, 94 mSDsluCounter, 4099 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 4938 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:35:20,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 4938 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:35:20,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-23 23:35:20,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 519. [2024-11-23 23:35:20,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 401 states have (on average 1.6134663341645885) internal successors, (647), 416 states have internal predecessors, (647), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-23 23:35:20,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 832 transitions. [2024-11-23 23:35:20,414 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 832 transitions. Word has length 109 [2024-11-23 23:35:20,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:20,415 INFO L471 AbstractCegarLoop]: Abstraction has 519 states and 832 transitions. [2024-11-23 23:35:20,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-23 23:35:20,415 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 832 transitions. [2024-11-23 23:35:20,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-23 23:35:20,419 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:20,419 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:20,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 23:35:20,419 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:20,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:20,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1843088761, now seen corresponding path program 1 times [2024-11-23 23:35:20,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:20,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995203593] [2024-11-23 23:35:20,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:20,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:20,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:20,662 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:35:20,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:20,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995203593] [2024-11-23 23:35:20,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995203593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:20,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:35:20,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:35:20,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849820788] [2024-11-23 23:35:20,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:20,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:35:20,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:20,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:35:20,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:35:20,665 INFO L87 Difference]: Start difference. First operand 519 states and 832 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:35:20,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:20,837 INFO L93 Difference]: Finished difference Result 1017 states and 1644 transitions. [2024-11-23 23:35:20,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:35:20,838 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2024-11-23 23:35:20,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:20,843 INFO L225 Difference]: With dead ends: 1017 [2024-11-23 23:35:20,843 INFO L226 Difference]: Without dead ends: 528 [2024-11-23 23:35:20,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:35:20,848 INFO L435 NwaCegarLoop]: 814 mSDtfsCounter, 39 mSDsluCounter, 3209 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 4023 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:35:20,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 4023 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:35:20,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-23 23:35:20,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 519. [2024-11-23 23:35:20,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 401 states have (on average 1.6109725685785536) internal successors, (646), 416 states have internal predecessors, (646), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-23 23:35:20,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 831 transitions. [2024-11-23 23:35:20,877 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 831 transitions. Word has length 110 [2024-11-23 23:35:20,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:20,878 INFO L471 AbstractCegarLoop]: Abstraction has 519 states and 831 transitions. [2024-11-23 23:35:20,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:35:20,878 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 831 transitions. [2024-11-23 23:35:20,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-23 23:35:20,882 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:20,882 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:20,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 23:35:20,882 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:20,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:20,883 INFO L85 PathProgramCache]: Analyzing trace with hash -894731146, now seen corresponding path program 1 times [2024-11-23 23:35:20,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:20,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634128841] [2024-11-23 23:35:20,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:20,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:20,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:21,092 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:35:21,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:21,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634128841] [2024-11-23 23:35:21,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634128841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:21,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:35:21,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:35:21,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955376461] [2024-11-23 23:35:21,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:21,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:35:21,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:21,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:35:21,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:35:21,096 INFO L87 Difference]: Start difference. First operand 519 states and 831 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:35:21,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:21,262 INFO L93 Difference]: Finished difference Result 1017 states and 1643 transitions. [2024-11-23 23:35:21,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:35:21,263 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2024-11-23 23:35:21,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:21,268 INFO L225 Difference]: With dead ends: 1017 [2024-11-23 23:35:21,268 INFO L226 Difference]: Without dead ends: 528 [2024-11-23 23:35:21,272 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:35:21,275 INFO L435 NwaCegarLoop]: 814 mSDtfsCounter, 38 mSDsluCounter, 3209 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 4023 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:35:21,275 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 4023 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:35:21,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-23 23:35:21,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 519. [2024-11-23 23:35:21,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 401 states have (on average 1.6084788029925188) internal successors, (645), 416 states have internal predecessors, (645), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-23 23:35:21,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 830 transitions. [2024-11-23 23:35:21,306 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 830 transitions. Word has length 111 [2024-11-23 23:35:21,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:21,307 INFO L471 AbstractCegarLoop]: Abstraction has 519 states and 830 transitions. [2024-11-23 23:35:21,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:35:21,307 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 830 transitions. [2024-11-23 23:35:21,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-23 23:35:21,311 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:21,312 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:21,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 23:35:21,312 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:21,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:21,313 INFO L85 PathProgramCache]: Analyzing trace with hash -395759316, now seen corresponding path program 1 times [2024-11-23 23:35:21,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:21,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886684122] [2024-11-23 23:35:21,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:21,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:21,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:21,463 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:35:21,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:21,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886684122] [2024-11-23 23:35:21,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886684122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:21,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:35:21,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:35:21,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091053207] [2024-11-23 23:35:21,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:21,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:35:21,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:21,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:35:21,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:35:21,465 INFO L87 Difference]: Start difference. First operand 519 states and 830 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:35:21,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:21,554 INFO L93 Difference]: Finished difference Result 1004 states and 1622 transitions. [2024-11-23 23:35:21,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:35:21,555 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 112 [2024-11-23 23:35:21,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:21,562 INFO L225 Difference]: With dead ends: 1004 [2024-11-23 23:35:21,562 INFO L226 Difference]: Without dead ends: 521 [2024-11-23 23:35:21,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:35:21,567 INFO L435 NwaCegarLoop]: 793 mSDtfsCounter, 16 mSDsluCounter, 1570 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2363 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 [2024-11-23 23:35:21,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2363 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:35:21,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-23 23:35:21,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2024-11-23 23:35:21,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 403 states have (on average 1.6029776674937966) internal successors, (646), 418 states have internal predecessors, (646), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-23 23:35:21,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 831 transitions. [2024-11-23 23:35:21,605 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 831 transitions. Word has length 112 [2024-11-23 23:35:21,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:21,606 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 831 transitions. [2024-11-23 23:35:21,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-23 23:35:21,606 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 831 transitions. [2024-11-23 23:35:21,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-23 23:35:21,610 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:21,611 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:21,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 23:35:21,611 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:21,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:21,612 INFO L85 PathProgramCache]: Analyzing trace with hash 2061232331, now seen corresponding path program 1 times [2024-11-23 23:35:21,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:21,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941820586] [2024-11-23 23:35:21,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:21,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:21,811 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-23 23:35:21,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:21,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941820586] [2024-11-23 23:35:21,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941820586] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:35:21,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081240617] [2024-11-23 23:35:21,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:21,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:35:21,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:35:21,815 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:35:21,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:35:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:22,248 INFO L256 TraceCheckSpWp]: Trace formula consists of 1212 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:35:22,258 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:35:22,299 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-23 23:35:22,301 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:35:22,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081240617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:22,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:35:22,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-23 23:35:22,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243596178] [2024-11-23 23:35:22,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:22,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:35:22,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:22,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:35:22,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:35:22,303 INFO L87 Difference]: Start difference. First operand 521 states and 831 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:35:22,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:22,409 INFO L93 Difference]: Finished difference Result 1472 states and 2414 transitions. [2024-11-23 23:35:22,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:35:22,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2024-11-23 23:35:22,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:22,420 INFO L225 Difference]: With dead ends: 1472 [2024-11-23 23:35:22,420 INFO L226 Difference]: Without dead ends: 994 [2024-11-23 23:35:22,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:35:22,425 INFO L435 NwaCegarLoop]: 883 mSDtfsCounter, 807 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:35:22,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 1650 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:35:22,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2024-11-23 23:35:22,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 987. [2024-11-23 23:35:22,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 987 states, 763 states have (on average 1.6238532110091743) internal successors, (1239), 791 states have internal predecessors, (1239), 178 states have call successors, (178), 46 states have call predecessors, (178), 45 states have return successors, (188), 175 states have call predecessors, (188), 176 states have call successors, (188) [2024-11-23 23:35:22,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 987 states and 1605 transitions. [2024-11-23 23:35:22,504 INFO L78 Accepts]: Start accepts. Automaton has 987 states and 1605 transitions. Word has length 113 [2024-11-23 23:35:22,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:22,504 INFO L471 AbstractCegarLoop]: Abstraction has 987 states and 1605 transitions. [2024-11-23 23:35:22,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:35:22,505 INFO L276 IsEmpty]: Start isEmpty. Operand 987 states and 1605 transitions. [2024-11-23 23:35:22,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-23 23:35:22,509 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:22,509 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:22,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 23:35:22,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:35:22,714 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:22,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:22,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1999192717, now seen corresponding path program 1 times [2024-11-23 23:35:22,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:22,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595494629] [2024-11-23 23:35:22,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:22,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:22,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:22,939 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-23 23:35:22,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:22,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595494629] [2024-11-23 23:35:22,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595494629] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:35:22,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028244099] [2024-11-23 23:35:22,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:22,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:35:22,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:35:22,943 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:35:22,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:35:23,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:23,371 INFO L256 TraceCheckSpWp]: Trace formula consists of 1213 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:35:23,377 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:35:23,569 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-23 23:35:23,569 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:35:23,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028244099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:23,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:35:23,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-23 23:35:23,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742879736] [2024-11-23 23:35:23,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:23,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:35:23,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:23,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:35:23,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:35:23,572 INFO L87 Difference]: Start difference. First operand 987 states and 1605 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:35:24,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:24,510 INFO L93 Difference]: Finished difference Result 1947 states and 3239 transitions. [2024-11-23 23:35:24,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:35:24,512 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2024-11-23 23:35:24,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:24,523 INFO L225 Difference]: With dead ends: 1947 [2024-11-23 23:35:24,524 INFO L226 Difference]: Without dead ends: 1003 [2024-11-23 23:35:24,554 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:35:24,555 INFO L435 NwaCegarLoop]: 792 mSDtfsCounter, 772 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 2012 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 23:35:24,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 2012 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 23:35:24,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2024-11-23 23:35:24,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 1003. [2024-11-23 23:35:24,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 777 states have (on average 1.6254826254826256) internal successors, (1263), 805 states have internal predecessors, (1263), 178 states have call successors, (178), 48 states have call predecessors, (178), 47 states have return successors, (190), 175 states have call predecessors, (190), 176 states have call successors, (190) [2024-11-23 23:35:24,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1631 transitions. [2024-11-23 23:35:24,645 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1631 transitions. Word has length 113 [2024-11-23 23:35:24,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:24,645 INFO L471 AbstractCegarLoop]: Abstraction has 1003 states and 1631 transitions. [2024-11-23 23:35:24,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:35:24,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1631 transitions. [2024-11-23 23:35:24,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-23 23:35:24,651 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:24,651 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:24,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 23:35:24,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-23 23:35:24,855 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:24,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:24,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1523591158, now seen corresponding path program 1 times [2024-11-23 23:35:24,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:24,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238330214] [2024-11-23 23:35:24,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:24,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:24,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:25,105 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-23 23:35:25,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:25,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238330214] [2024-11-23 23:35:25,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238330214] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:35:25,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109205418] [2024-11-23 23:35:25,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:25,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:35:25,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:35:25,110 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:35:25,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 23:35:25,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:25,501 INFO L256 TraceCheckSpWp]: Trace formula consists of 1216 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:35:25,508 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:35:25,695 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-23 23:35:25,695 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:35:25,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109205418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:25,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:35:25,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-23 23:35:25,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233033765] [2024-11-23 23:35:25,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:25,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:35:25,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:25,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:35:25,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:35:25,697 INFO L87 Difference]: Start difference. First operand 1003 states and 1631 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:35:26,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:26,585 INFO L93 Difference]: Finished difference Result 1979 states and 3285 transitions. [2024-11-23 23:35:26,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:35:26,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2024-11-23 23:35:26,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:26,595 INFO L225 Difference]: With dead ends: 1979 [2024-11-23 23:35:26,595 INFO L226 Difference]: Without dead ends: 1019 [2024-11-23 23:35:26,603 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:35:26,604 INFO L435 NwaCegarLoop]: 789 mSDtfsCounter, 770 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 2009 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:35:26,604 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 2009 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:35:26,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2024-11-23 23:35:26,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 1019. [2024-11-23 23:35:26,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 791 states have (on average 1.6270543615676358) internal successors, (1287), 819 states have internal predecessors, (1287), 178 states have call successors, (178), 50 states have call predecessors, (178), 49 states have return successors, (192), 175 states have call predecessors, (192), 176 states have call successors, (192) [2024-11-23 23:35:26,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1657 transitions. [2024-11-23 23:35:26,691 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1657 transitions. Word has length 116 [2024-11-23 23:35:26,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:26,692 INFO L471 AbstractCegarLoop]: Abstraction has 1019 states and 1657 transitions. [2024-11-23 23:35:26,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:35:26,692 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1657 transitions. [2024-11-23 23:35:26,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 23:35:26,696 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:26,697 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:26,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-23 23:35:26,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-23 23:35:26,900 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:26,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:26,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1527001961, now seen corresponding path program 1 times [2024-11-23 23:35:26,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:26,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877966943] [2024-11-23 23:35:26,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:26,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:26,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:27,069 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-23 23:35:27,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:27,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877966943] [2024-11-23 23:35:27,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877966943] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:35:27,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907670853] [2024-11-23 23:35:27,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:27,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:35:27,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:35:27,072 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:35:27,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 23:35:27,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:27,462 INFO L256 TraceCheckSpWp]: Trace formula consists of 1219 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:35:27,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:35:27,648 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-23 23:35:27,648 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:35:27,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [907670853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:27,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:35:27,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-23 23:35:27,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933237318] [2024-11-23 23:35:27,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:27,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:35:27,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:27,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:35:27,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:35:27,652 INFO L87 Difference]: Start difference. First operand 1019 states and 1657 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:35:28,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:28,519 INFO L93 Difference]: Finished difference Result 2011 states and 3331 transitions. [2024-11-23 23:35:28,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:35:28,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2024-11-23 23:35:28,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:28,531 INFO L225 Difference]: With dead ends: 2011 [2024-11-23 23:35:28,531 INFO L226 Difference]: Without dead ends: 1035 [2024-11-23 23:35:28,540 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:35:28,540 INFO L435 NwaCegarLoop]: 786 mSDtfsCounter, 751 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:35:28,541 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 2006 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:35:28,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2024-11-23 23:35:28,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 1035. [2024-11-23 23:35:28,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 805 states have (on average 1.6285714285714286) internal successors, (1311), 833 states have internal predecessors, (1311), 178 states have call successors, (178), 52 states have call predecessors, (178), 51 states have return successors, (194), 175 states have call predecessors, (194), 176 states have call successors, (194) [2024-11-23 23:35:28,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1683 transitions. [2024-11-23 23:35:28,621 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1683 transitions. Word has length 119 [2024-11-23 23:35:28,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:28,624 INFO L471 AbstractCegarLoop]: Abstraction has 1035 states and 1683 transitions. [2024-11-23 23:35:28,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:35:28,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1683 transitions. [2024-11-23 23:35:28,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-23 23:35:28,629 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:28,629 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:28,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-23 23:35:28,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-23 23:35:28,830 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:28,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:28,831 INFO L85 PathProgramCache]: Analyzing trace with hash -670024182, now seen corresponding path program 1 times [2024-11-23 23:35:28,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:28,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634630068] [2024-11-23 23:35:28,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:28,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:29,003 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-23 23:35:29,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:29,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634630068] [2024-11-23 23:35:29,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634630068] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:35:29,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890012400] [2024-11-23 23:35:29,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:29,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:35:29,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:35:29,009 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:35:29,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 23:35:29,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:29,376 INFO L256 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:35:29,381 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:35:29,580 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-23 23:35:29,580 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:35:29,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890012400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:29,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:35:29,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-23 23:35:29,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613858730] [2024-11-23 23:35:29,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:29,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:35:29,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:29,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:35:29,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:35:29,586 INFO L87 Difference]: Start difference. First operand 1035 states and 1683 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:35:30,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:30,357 INFO L93 Difference]: Finished difference Result 2043 states and 3377 transitions. [2024-11-23 23:35:30,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:35:30,358 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2024-11-23 23:35:30,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:30,367 INFO L225 Difference]: With dead ends: 2043 [2024-11-23 23:35:30,367 INFO L226 Difference]: Without dead ends: 1051 [2024-11-23 23:35:30,376 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:35:30,377 INFO L435 NwaCegarLoop]: 783 mSDtfsCounter, 758 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 2003 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:35:30,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 2003 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:35:30,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states. [2024-11-23 23:35:30,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 1051. [2024-11-23 23:35:30,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1051 states, 819 states have (on average 1.63003663003663) internal successors, (1335), 847 states have internal predecessors, (1335), 178 states have call successors, (178), 54 states have call predecessors, (178), 53 states have return successors, (196), 175 states have call predecessors, (196), 176 states have call successors, (196) [2024-11-23 23:35:30,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 1709 transitions. [2024-11-23 23:35:30,449 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 1709 transitions. Word has length 122 [2024-11-23 23:35:30,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:30,450 INFO L471 AbstractCegarLoop]: Abstraction has 1051 states and 1709 transitions. [2024-11-23 23:35:30,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:35:30,450 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 1709 transitions. [2024-11-23 23:35:30,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-23 23:35:30,454 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:30,454 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:30,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-23 23:35:30,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:35:30,659 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:30,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:30,660 INFO L85 PathProgramCache]: Analyzing trace with hash -2091078075, now seen corresponding path program 1 times [2024-11-23 23:35:30,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:30,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249656123] [2024-11-23 23:35:30,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:30,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:31,058 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-23 23:35:31,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:31,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249656123] [2024-11-23 23:35:31,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249656123] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:35:31,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663980075] [2024-11-23 23:35:31,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:31,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:35:31,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:35:31,062 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:35:31,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 23:35:31,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:31,472 INFO L256 TraceCheckSpWp]: Trace formula consists of 1225 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 23:35:31,478 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:35:31,617 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-23 23:35:31,617 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:35:31,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663980075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:31,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:35:31,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 10 [2024-11-23 23:35:31,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121377436] [2024-11-23 23:35:31,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:31,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:35:31,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:31,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:35:31,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:35:31,620 INFO L87 Difference]: Start difference. First operand 1051 states and 1709 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:35:31,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:31,708 INFO L93 Difference]: Finished difference Result 2384 states and 3871 transitions. [2024-11-23 23:35:31,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:35:31,709 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 125 [2024-11-23 23:35:31,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:31,721 INFO L225 Difference]: With dead ends: 2384 [2024-11-23 23:35:31,721 INFO L226 Difference]: Without dead ends: 1376 [2024-11-23 23:35:31,728 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:35:31,729 INFO L435 NwaCegarLoop]: 919 mSDtfsCounter, 532 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 1311 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:35:31,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 1311 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:35:31,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1376 states. [2024-11-23 23:35:31,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1376 to 1374. [2024-11-23 23:35:31,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1374 states, 1073 states have (on average 1.5890027958993476) internal successors, (1705), 1097 states have internal predecessors, (1705), 221 states have call successors, (221), 82 states have call predecessors, (221), 79 states have return successors, (268), 218 states have call predecessors, (268), 217 states have call successors, (268) [2024-11-23 23:35:31,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1374 states to 1374 states and 2194 transitions. [2024-11-23 23:35:31,821 INFO L78 Accepts]: Start accepts. Automaton has 1374 states and 2194 transitions. Word has length 125 [2024-11-23 23:35:31,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:31,822 INFO L471 AbstractCegarLoop]: Abstraction has 1374 states and 2194 transitions. [2024-11-23 23:35:31,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:35:31,822 INFO L276 IsEmpty]: Start isEmpty. Operand 1374 states and 2194 transitions. [2024-11-23 23:35:31,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-23 23:35:31,827 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:31,827 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:31,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-23 23:35:32,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:35:32,032 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:32,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:32,033 INFO L85 PathProgramCache]: Analyzing trace with hash 2002065287, now seen corresponding path program 1 times [2024-11-23 23:35:32,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:32,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334589201] [2024-11-23 23:35:32,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:32,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:32,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:32,398 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-23 23:35:32,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:32,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334589201] [2024-11-23 23:35:32,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334589201] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:35:32,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674756270] [2024-11-23 23:35:32,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:32,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:35:32,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:35:32,401 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:35:32,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-23 23:35:32,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:32,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 1228 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-23 23:35:32,775 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:35:33,104 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-23 23:35:33,104 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:35:33,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674756270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:33,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:35:33,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-23 23:35:33,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611252981] [2024-11-23 23:35:33,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:33,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:35:33,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:33,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:35:33,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:35:33,108 INFO L87 Difference]: Start difference. First operand 1374 states and 2194 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 23:35:34,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:34,003 INFO L93 Difference]: Finished difference Result 2714 states and 4366 transitions. [2024-11-23 23:35:34,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:35:34,004 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 125 [2024-11-23 23:35:34,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:34,015 INFO L225 Difference]: With dead ends: 2714 [2024-11-23 23:35:34,015 INFO L226 Difference]: Without dead ends: 1384 [2024-11-23 23:35:34,023 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:35:34,024 INFO L435 NwaCegarLoop]: 868 mSDtfsCounter, 797 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 3399 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:35:34,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [803 Valid, 3399 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:35:34,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2024-11-23 23:35:34,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1377. [2024-11-23 23:35:34,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1377 states, 1075 states have (on average 1.587906976744186) internal successors, (1707), 1100 states have internal predecessors, (1707), 221 states have call successors, (221), 82 states have call predecessors, (221), 80 states have return successors, (269), 218 states have call predecessors, (269), 217 states have call successors, (269) [2024-11-23 23:35:34,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 2197 transitions. [2024-11-23 23:35:34,123 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 2197 transitions. Word has length 125 [2024-11-23 23:35:34,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:34,124 INFO L471 AbstractCegarLoop]: Abstraction has 1377 states and 2197 transitions. [2024-11-23 23:35:34,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 23:35:34,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 2197 transitions. [2024-11-23 23:35:34,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-23 23:35:34,128 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:34,128 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:34,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-23 23:35:34,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-23 23:35:34,333 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:34,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:34,334 INFO L85 PathProgramCache]: Analyzing trace with hash 492004295, now seen corresponding path program 1 times [2024-11-23 23:35:34,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:34,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478750742] [2024-11-23 23:35:34,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:34,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:34,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:34,707 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-23 23:35:34,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:34,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478750742] [2024-11-23 23:35:34,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478750742] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:35:34,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160179827] [2024-11-23 23:35:34,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:34,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:35:34,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:35:34,713 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:35:34,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-23 23:35:35,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:35,102 INFO L256 TraceCheckSpWp]: Trace formula consists of 1224 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 23:35:35,109 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:35:35,335 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-23 23:35:35,336 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:35:35,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160179827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:35,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:35:35,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-23 23:35:35,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381172631] [2024-11-23 23:35:35,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:35,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:35:35,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:35,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:35:35,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:35:35,339 INFO L87 Difference]: Start difference. First operand 1377 states and 2197 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 23:35:35,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:35,988 INFO L93 Difference]: Finished difference Result 2728 states and 4407 transitions. [2024-11-23 23:35:35,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:35:35,989 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2024-11-23 23:35:35,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:36,002 INFO L225 Difference]: With dead ends: 2728 [2024-11-23 23:35:36,003 INFO L226 Difference]: Without dead ends: 1395 [2024-11-23 23:35:36,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:35:36,012 INFO L435 NwaCegarLoop]: 861 mSDtfsCounter, 741 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 3149 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:35:36,012 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 3149 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 23:35:36,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2024-11-23 23:35:36,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 1387. [2024-11-23 23:35:36,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1387 states, 1081 states have (on average 1.5846438482886216) internal successors, (1713), 1109 states have internal predecessors, (1713), 223 states have call successors, (223), 83 states have call predecessors, (223), 82 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2024-11-23 23:35:36,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1387 states and 2215 transitions. [2024-11-23 23:35:36,094 INFO L78 Accepts]: Start accepts. Automaton has 1387 states and 2215 transitions. Word has length 127 [2024-11-23 23:35:36,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:36,094 INFO L471 AbstractCegarLoop]: Abstraction has 1387 states and 2215 transitions. [2024-11-23 23:35:36,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 23:35:36,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1387 states and 2215 transitions. [2024-11-23 23:35:36,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-23 23:35:36,099 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:36,099 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:36,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-23 23:35:36,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-23 23:35:36,303 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:36,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:36,304 INFO L85 PathProgramCache]: Analyzing trace with hash 734459967, now seen corresponding path program 1 times [2024-11-23 23:35:36,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:36,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319287602] [2024-11-23 23:35:36,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:36,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:36,703 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-23 23:35:36,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:36,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319287602] [2024-11-23 23:35:36,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319287602] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:35:36,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886603654] [2024-11-23 23:35:36,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:36,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:35:36,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:35:36,706 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:35:36,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-23 23:35:37,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:37,141 INFO L256 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 23:35:37,146 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:35:37,177 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-23 23:35:37,178 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:35:37,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886603654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:37,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:35:37,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-23 23:35:37,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332181311] [2024-11-23 23:35:37,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:37,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:35:37,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:37,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:35:37,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:35:37,181 INFO L87 Difference]: Start difference. First operand 1387 states and 2215 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-23 23:35:37,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:37,332 INFO L93 Difference]: Finished difference Result 3391 states and 5494 transitions. [2024-11-23 23:35:37,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:35:37,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2024-11-23 23:35:37,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:37,353 INFO L225 Difference]: With dead ends: 3391 [2024-11-23 23:35:37,354 INFO L226 Difference]: Without dead ends: 2050 [2024-11-23 23:35:37,361 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:35:37,362 INFO L435 NwaCegarLoop]: 1530 mSDtfsCounter, 770 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 2334 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:35:37,363 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [770 Valid, 2334 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:35:37,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050 states. [2024-11-23 23:35:37,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050 to 1387. [2024-11-23 23:35:37,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1387 states, 1081 states have (on average 1.5837187789084182) internal successors, (1712), 1109 states have internal predecessors, (1712), 223 states have call successors, (223), 83 states have call predecessors, (223), 82 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2024-11-23 23:35:37,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1387 states and 2214 transitions. [2024-11-23 23:35:37,478 INFO L78 Accepts]: Start accepts. Automaton has 1387 states and 2214 transitions. Word has length 132 [2024-11-23 23:35:37,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:37,478 INFO L471 AbstractCegarLoop]: Abstraction has 1387 states and 2214 transitions. [2024-11-23 23:35:37,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-23 23:35:37,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1387 states and 2214 transitions. [2024-11-23 23:35:37,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-23 23:35:37,484 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:37,485 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:37,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-23 23:35:37,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-23 23:35:37,686 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:37,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:37,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1436059841, now seen corresponding path program 1 times [2024-11-23 23:35:37,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:37,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94973726] [2024-11-23 23:35:37,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:37,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:37,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:38,026 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-23 23:35:38,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:38,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94973726] [2024-11-23 23:35:38,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94973726] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:35:38,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308650746] [2024-11-23 23:35:38,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:38,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:35:38,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:35:38,030 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:35:38,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-23 23:35:38,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:38,415 INFO L256 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 23:35:38,419 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:35:38,577 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-23 23:35:38,578 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:35:38,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308650746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:38,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:35:38,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-23 23:35:38,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279001305] [2024-11-23 23:35:38,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:38,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:35:38,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:38,580 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:35:38,580 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:35:38,580 INFO L87 Difference]: Start difference. First operand 1387 states and 2214 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-23 23:35:38,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:38,726 INFO L93 Difference]: Finished difference Result 2726 states and 4372 transitions. [2024-11-23 23:35:38,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:35:38,727 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2024-11-23 23:35:38,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:38,740 INFO L225 Difference]: With dead ends: 2726 [2024-11-23 23:35:38,741 INFO L226 Difference]: Without dead ends: 1387 [2024-11-23 23:35:38,747 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:35:38,749 INFO L435 NwaCegarLoop]: 884 mSDtfsCounter, 344 mSDsluCounter, 2360 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 3244 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 [2024-11-23 23:35:38,749 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 3244 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:35:38,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1387 states. [2024-11-23 23:35:38,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1387 to 1387. [2024-11-23 23:35:38,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1387 states, 1081 states have (on average 1.580018501387604) internal successors, (1708), 1109 states have internal predecessors, (1708), 223 states have call successors, (223), 83 states have call predecessors, (223), 82 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2024-11-23 23:35:38,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1387 states and 2210 transitions. [2024-11-23 23:35:38,839 INFO L78 Accepts]: Start accepts. Automaton has 1387 states and 2210 transitions. Word has length 132 [2024-11-23 23:35:38,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:38,840 INFO L471 AbstractCegarLoop]: Abstraction has 1387 states and 2210 transitions. [2024-11-23 23:35:38,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-23 23:35:38,841 INFO L276 IsEmpty]: Start isEmpty. Operand 1387 states and 2210 transitions. [2024-11-23 23:35:38,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-23 23:35:38,846 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:38,847 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:38,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-23 23:35:39,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-23 23:35:39,048 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:39,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:39,049 INFO L85 PathProgramCache]: Analyzing trace with hash -846600879, now seen corresponding path program 1 times [2024-11-23 23:35:39,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:39,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079948665] [2024-11-23 23:35:39,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:39,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:39,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:39,414 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-23 23:35:39,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:39,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079948665] [2024-11-23 23:35:39,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079948665] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:35:39,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091296226] [2024-11-23 23:35:39,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:39,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:35:39,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:35:39,420 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:35:39,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-23 23:35:39,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:39,802 INFO L256 TraceCheckSpWp]: Trace formula consists of 1332 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:35:39,807 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:35:39,849 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-23 23:35:39,849 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:35:39,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091296226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:39,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:35:39,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-23 23:35:39,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475514652] [2024-11-23 23:35:39,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:39,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:35:39,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:39,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:35:39,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:35:39,852 INFO L87 Difference]: Start difference. First operand 1387 states and 2210 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 23:35:40,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:40,185 INFO L93 Difference]: Finished difference Result 2819 states and 4552 transitions. [2024-11-23 23:35:40,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:35:40,186 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 155 [2024-11-23 23:35:40,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:40,200 INFO L225 Difference]: With dead ends: 2819 [2024-11-23 23:35:40,201 INFO L226 Difference]: Without dead ends: 1477 [2024-11-23 23:35:40,208 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:35:40,208 INFO L435 NwaCegarLoop]: 750 mSDtfsCounter, 144 mSDsluCounter, 1477 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 2227 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 [2024-11-23 23:35:40,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 2227 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:35:40,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2024-11-23 23:35:40,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 1465. [2024-11-23 23:35:40,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1465 states, 1157 states have (on average 1.602420051858254) internal successors, (1854), 1185 states have internal predecessors, (1854), 223 states have call successors, (223), 85 states have call predecessors, (223), 84 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2024-11-23 23:35:40,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1465 states to 1465 states and 2356 transitions. [2024-11-23 23:35:40,297 INFO L78 Accepts]: Start accepts. Automaton has 1465 states and 2356 transitions. Word has length 155 [2024-11-23 23:35:40,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:40,297 INFO L471 AbstractCegarLoop]: Abstraction has 1465 states and 2356 transitions. [2024-11-23 23:35:40,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 23:35:40,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1465 states and 2356 transitions. [2024-11-23 23:35:40,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-23 23:35:40,304 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:40,304 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:40,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-23 23:35:40,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-23 23:35:40,505 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:40,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:40,506 INFO L85 PathProgramCache]: Analyzing trace with hash 322718916, now seen corresponding path program 1 times [2024-11-23 23:35:40,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:40,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576979216] [2024-11-23 23:35:40,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:40,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:40,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:40,847 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-23 23:35:40,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:40,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576979216] [2024-11-23 23:35:40,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576979216] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:35:40,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071509281] [2024-11-23 23:35:40,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:40,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:35:40,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:35:40,850 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:35:40,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-23 23:35:41,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:41,249 INFO L256 TraceCheckSpWp]: Trace formula consists of 1337 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:35:41,253 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:35:41,296 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-23 23:35:41,297 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:35:41,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071509281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:41,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:35:41,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-23 23:35:41,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603768260] [2024-11-23 23:35:41,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:41,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:35:41,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:41,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:35:41,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:35:41,300 INFO L87 Difference]: Start difference. First operand 1465 states and 2356 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 23:35:41,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:41,630 INFO L93 Difference]: Finished difference Result 2981 states and 4846 transitions. [2024-11-23 23:35:41,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:35:41,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 160 [2024-11-23 23:35:41,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:41,649 INFO L225 Difference]: With dead ends: 2981 [2024-11-23 23:35:41,649 INFO L226 Difference]: Without dead ends: 1561 [2024-11-23 23:35:41,660 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:35:41,661 INFO L435 NwaCegarLoop]: 749 mSDtfsCounter, 142 mSDsluCounter, 1475 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 2224 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 [2024-11-23 23:35:41,662 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 2224 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:35:41,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1561 states. [2024-11-23 23:35:41,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1561 to 1543. [2024-11-23 23:35:41,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1233 states have (on average 1.6220600162206003) internal successors, (2000), 1261 states have internal predecessors, (2000), 223 states have call successors, (223), 87 states have call predecessors, (223), 86 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2024-11-23 23:35:41,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2502 transitions. [2024-11-23 23:35:41,754 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2502 transitions. Word has length 160 [2024-11-23 23:35:41,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:41,754 INFO L471 AbstractCegarLoop]: Abstraction has 1543 states and 2502 transitions. [2024-11-23 23:35:41,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 23:35:41,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2502 transitions. [2024-11-23 23:35:41,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-23 23:35:41,762 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:41,762 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:41,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-23 23:35:41,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-23 23:35:41,964 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:41,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:41,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1028388788, now seen corresponding path program 1 times [2024-11-23 23:35:41,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:41,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357800220] [2024-11-23 23:35:41,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:41,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:42,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:42,421 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-23 23:35:42,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:42,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357800220] [2024-11-23 23:35:42,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357800220] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:35:42,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948725166] [2024-11-23 23:35:42,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:42,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:35:42,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:35:42,424 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:35:42,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-23 23:35:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:42,811 INFO L256 TraceCheckSpWp]: Trace formula consists of 1341 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:35:42,815 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:35:42,860 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-23 23:35:42,860 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:35:42,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948725166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:42,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:35:42,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-23 23:35:42,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083704708] [2024-11-23 23:35:42,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:42,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:35:42,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:42,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:35:42,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:35:42,862 INFO L87 Difference]: Start difference. First operand 1543 states and 2502 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 23:35:43,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:43,171 INFO L93 Difference]: Finished difference Result 3143 states and 5140 transitions. [2024-11-23 23:35:43,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:35:43,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 164 [2024-11-23 23:35:43,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:43,194 INFO L225 Difference]: With dead ends: 3143 [2024-11-23 23:35:43,195 INFO L226 Difference]: Without dead ends: 1645 [2024-11-23 23:35:43,203 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:35:43,204 INFO L435 NwaCegarLoop]: 748 mSDtfsCounter, 140 mSDsluCounter, 1473 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 2221 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:35:43,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 2221 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:35:43,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1645 states. [2024-11-23 23:35:43,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1645 to 1621. [2024-11-23 23:35:43,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1621 states, 1309 states have (on average 1.6394194041252865) internal successors, (2146), 1337 states have internal predecessors, (2146), 223 states have call successors, (223), 89 states have call predecessors, (223), 88 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2024-11-23 23:35:43,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1621 states to 1621 states and 2648 transitions. [2024-11-23 23:35:43,309 INFO L78 Accepts]: Start accepts. Automaton has 1621 states and 2648 transitions. Word has length 164 [2024-11-23 23:35:43,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:43,310 INFO L471 AbstractCegarLoop]: Abstraction has 1621 states and 2648 transitions. [2024-11-23 23:35:43,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 23:35:43,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1621 states and 2648 transitions. [2024-11-23 23:35:43,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-23 23:35:43,317 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:43,317 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:43,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-23 23:35:43,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-23 23:35:43,518 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:43,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:43,519 INFO L85 PathProgramCache]: Analyzing trace with hash 151168753, now seen corresponding path program 1 times [2024-11-23 23:35:43,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:43,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150813322] [2024-11-23 23:35:43,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:43,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:43,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:43,871 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-23 23:35:43,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:43,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150813322] [2024-11-23 23:35:43,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150813322] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:35:43,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32622187] [2024-11-23 23:35:43,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:43,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:35:43,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:35:43,874 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:35:43,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-23 23:35:44,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:44,261 INFO L256 TraceCheckSpWp]: Trace formula consists of 1344 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:35:44,265 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:35:44,318 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-23 23:35:44,318 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:35:44,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32622187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:44,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:35:44,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-23 23:35:44,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646383918] [2024-11-23 23:35:44,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:44,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:35:44,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:44,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:35:44,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:35:44,320 INFO L87 Difference]: Start difference. First operand 1621 states and 2648 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 23:35:44,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:44,640 INFO L93 Difference]: Finished difference Result 3305 states and 5434 transitions. [2024-11-23 23:35:44,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:35:44,641 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 167 [2024-11-23 23:35:44,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:44,658 INFO L225 Difference]: With dead ends: 3305 [2024-11-23 23:35:44,658 INFO L226 Difference]: Without dead ends: 1729 [2024-11-23 23:35:44,665 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:35:44,667 INFO L435 NwaCegarLoop]: 745 mSDtfsCounter, 138 mSDsluCounter, 1466 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 2211 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:35:44,668 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 2211 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:35:44,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1729 states. [2024-11-23 23:35:44,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1729 to 1699. [2024-11-23 23:35:44,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1699 states, 1385 states have (on average 1.6548736462093863) internal successors, (2292), 1413 states have internal predecessors, (2292), 223 states have call successors, (223), 91 states have call predecessors, (223), 90 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2024-11-23 23:35:44,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2794 transitions. [2024-11-23 23:35:44,766 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2794 transitions. Word has length 167 [2024-11-23 23:35:44,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:44,768 INFO L471 AbstractCegarLoop]: Abstraction has 1699 states and 2794 transitions. [2024-11-23 23:35:44,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 23:35:44,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2794 transitions. [2024-11-23 23:35:44,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-23 23:35:44,776 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:44,777 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:44,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-23 23:35:44,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-23 23:35:44,978 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:44,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:44,979 INFO L85 PathProgramCache]: Analyzing trace with hash 548031039, now seen corresponding path program 1 times [2024-11-23 23:35:44,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:44,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913223964] [2024-11-23 23:35:44,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:44,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:45,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:45,340 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-23 23:35:45,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:45,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913223964] [2024-11-23 23:35:45,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913223964] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:35:45,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262496933] [2024-11-23 23:35:45,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:45,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:35:45,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:35:45,349 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:35:45,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-23 23:35:45,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:45,733 INFO L256 TraceCheckSpWp]: Trace formula consists of 1340 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-23 23:35:45,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:35:46,058 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-23 23:35:46,058 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:35:46,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262496933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:46,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:35:46,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 14 [2024-11-23 23:35:46,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167699609] [2024-11-23 23:35:46,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:46,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:35:46,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:46,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:35:46,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:35:46,060 INFO L87 Difference]: Start difference. First operand 1699 states and 2794 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 7 states have internal predecessors, (108), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-23 23:35:49,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:49,759 INFO L93 Difference]: Finished difference Result 5296 states and 8857 transitions. [2024-11-23 23:35:49,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:35:49,760 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 7 states have internal predecessors, (108), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) Word has length 169 [2024-11-23 23:35:49,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:49,792 INFO L225 Difference]: With dead ends: 5296 [2024-11-23 23:35:49,792 INFO L226 Difference]: Without dead ends: 3278 [2024-11-23 23:35:49,806 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2024-11-23 23:35:49,807 INFO L435 NwaCegarLoop]: 354 mSDtfsCounter, 1848 mSDsluCounter, 1851 mSDsCounter, 0 mSdLazyCounter, 3714 mSolverCounterSat, 449 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1947 SdHoareTripleChecker+Valid, 2205 SdHoareTripleChecker+Invalid, 4163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 449 IncrementalHoareTripleChecker+Valid, 3714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:35:49,808 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1947 Valid, 2205 Invalid, 4163 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [449 Valid, 3714 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-23 23:35:49,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3278 states. [2024-11-23 23:35:49,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3278 to 3258. [2024-11-23 23:35:49,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3258 states, 2611 states have (on average 1.6579854461891996) internal successors, (4329), 2693 states have internal predecessors, (4329), 463 states have call successors, (463), 163 states have call predecessors, (463), 183 states have return successors, (607), 459 states have call predecessors, (607), 459 states have call successors, (607) [2024-11-23 23:35:49,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3258 states to 3258 states and 5399 transitions. [2024-11-23 23:35:50,001 INFO L78 Accepts]: Start accepts. Automaton has 3258 states and 5399 transitions. Word has length 169 [2024-11-23 23:35:50,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:50,002 INFO L471 AbstractCegarLoop]: Abstraction has 3258 states and 5399 transitions. [2024-11-23 23:35:50,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 7 states have internal predecessors, (108), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-23 23:35:50,003 INFO L276 IsEmpty]: Start isEmpty. Operand 3258 states and 5399 transitions. [2024-11-23 23:35:50,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-23 23:35:50,016 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:50,016 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:50,030 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-23 23:35:50,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-23 23:35:50,217 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:50,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:50,218 INFO L85 PathProgramCache]: Analyzing trace with hash 2092103018, now seen corresponding path program 1 times [2024-11-23 23:35:50,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:50,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925179107] [2024-11-23 23:35:50,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:50,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:50,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:50,480 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-23 23:35:50,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:50,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925179107] [2024-11-23 23:35:50,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925179107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:35:50,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:35:50,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:35:50,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128804810] [2024-11-23 23:35:50,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:35:50,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:35:50,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:50,483 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:35:50,483 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:35:50,483 INFO L87 Difference]: Start difference. First operand 3258 states and 5399 transitions. Second operand has 8 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-23 23:35:50,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:35:50,756 INFO L93 Difference]: Finished difference Result 6342 states and 10538 transitions. [2024-11-23 23:35:50,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:35:50,757 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 172 [2024-11-23 23:35:50,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:35:50,784 INFO L225 Difference]: With dead ends: 6342 [2024-11-23 23:35:50,784 INFO L226 Difference]: Without dead ends: 2991 [2024-11-23 23:35:50,799 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 [2024-11-23 23:35:50,802 INFO L435 NwaCegarLoop]: 788 mSDtfsCounter, 33 mSDsluCounter, 4696 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 5484 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:35:50,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 5484 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:35:50,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2991 states. [2024-11-23 23:35:50,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2991 to 2979. [2024-11-23 23:35:50,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2979 states, 2432 states have (on average 1.6792763157894737) internal successors, (4084), 2501 states have internal predecessors, (4084), 383 states have call successors, (383), 151 states have call predecessors, (383), 163 states have return successors, (477), 374 states have call predecessors, (477), 379 states have call successors, (477) [2024-11-23 23:35:50,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 4944 transitions. [2024-11-23 23:35:50,959 INFO L78 Accepts]: Start accepts. Automaton has 2979 states and 4944 transitions. Word has length 172 [2024-11-23 23:35:50,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:35:50,959 INFO L471 AbstractCegarLoop]: Abstraction has 2979 states and 4944 transitions. [2024-11-23 23:35:50,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-23 23:35:50,959 INFO L276 IsEmpty]: Start isEmpty. Operand 2979 states and 4944 transitions. [2024-11-23 23:35:50,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2024-11-23 23:35:50,980 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:35:50,980 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:35:50,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-23 23:35:50,981 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:35:50,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:35:50,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1787599037, now seen corresponding path program 1 times [2024-11-23 23:35:50,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:35:50,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022787967] [2024-11-23 23:35:50,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:50,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:35:51,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:51,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 36 proven. 99 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-23 23:35:51,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:35:51,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022787967] [2024-11-23 23:35:51,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022787967] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:35:51,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720113289] [2024-11-23 23:35:51,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:35:51,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:35:51,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:35:51,974 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:35:51,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-23 23:35:52,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:35:52,793 INFO L256 TraceCheckSpWp]: Trace formula consists of 3184 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-23 23:35:52,808 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:35:53,226 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 341 proven. 50 refuted. 0 times theorem prover too weak. 668 trivial. 0 not checked. [2024-11-23 23:35:53,226 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:35:54,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 57 proven. 93 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2024-11-23 23:35:54,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720113289] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:35:54,559 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:35:54,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 14] total 27 [2024-11-23 23:35:54,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446189134] [2024-11-23 23:35:54,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:35:54,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-23 23:35:54,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:35:54,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-23 23:35:54,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=611, Unknown=0, NotChecked=0, Total=702 [2024-11-23 23:35:54,563 INFO L87 Difference]: Start difference. First operand 2979 states and 4944 transitions. Second operand has 27 states, 25 states have (on average 14.48) internal successors, (362), 23 states have internal predecessors, (362), 17 states have call successors, (89), 8 states have call predecessors, (89), 14 states have return successors, (90), 20 states have call predecessors, (90), 17 states have call successors, (90) [2024-11-23 23:36:53,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:36:53,283 INFO L93 Difference]: Finished difference Result 45269 states and 80279 transitions. [2024-11-23 23:36:53,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 430 states. [2024-11-23 23:36:53,283 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 14.48) internal successors, (362), 23 states have internal predecessors, (362), 17 states have call successors, (89), 8 states have call predecessors, (89), 14 states have return successors, (90), 20 states have call predecessors, (90), 17 states have call successors, (90) Word has length 459 [2024-11-23 23:36:53,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:36:53,640 INFO L225 Difference]: With dead ends: 45269 [2024-11-23 23:36:53,641 INFO L226 Difference]: Without dead ends: 42230 [2024-11-23 23:36:53,760 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1478 GetRequests, 1029 SyntacticMatches, 4 SemanticMatches, 445 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92776 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=16349, Invalid=183013, Unknown=0, NotChecked=0, Total=199362 [2024-11-23 23:36:53,761 INFO L435 NwaCegarLoop]: 2391 mSDtfsCounter, 34576 mSDsluCounter, 19315 mSDsCounter, 0 mSdLazyCounter, 62385 mSolverCounterSat, 12716 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34590 SdHoareTripleChecker+Valid, 21706 SdHoareTripleChecker+Invalid, 75101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 12716 IncrementalHoareTripleChecker+Valid, 62385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:36:53,762 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34590 Valid, 21706 Invalid, 75101 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [12716 Valid, 62385 Invalid, 0 Unknown, 0 Unchecked, 42.0s Time] [2024-11-23 23:36:53,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42230 states. [2024-11-23 23:36:56,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42230 to 34237. [2024-11-23 23:36:56,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34237 states, 27941 states have (on average 1.658673633728213) internal successors, (46345), 28806 states have internal predecessors, (46345), 4150 states have call successors, (4150), 1795 states have call predecessors, (4150), 2145 states have return successors, (6535), 4211 states have call predecessors, (6535), 4132 states have call successors, (6535) [2024-11-23 23:36:56,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34237 states to 34237 states and 57030 transitions. [2024-11-23 23:36:56,922 INFO L78 Accepts]: Start accepts. Automaton has 34237 states and 57030 transitions. Word has length 459 [2024-11-23 23:36:56,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:36:56,923 INFO L471 AbstractCegarLoop]: Abstraction has 34237 states and 57030 transitions. [2024-11-23 23:36:56,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 14.48) internal successors, (362), 23 states have internal predecessors, (362), 17 states have call successors, (89), 8 states have call predecessors, (89), 14 states have return successors, (90), 20 states have call predecessors, (90), 17 states have call successors, (90) [2024-11-23 23:36:56,924 INFO L276 IsEmpty]: Start isEmpty. Operand 34237 states and 57030 transitions. [2024-11-23 23:36:57,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2024-11-23 23:36:57,089 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:36:57,089 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:36:57,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-23 23:36:57,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-23 23:36:57,294 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:36:57,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:36:57,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1908653667, now seen corresponding path program 1 times [2024-11-23 23:36:57,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:36:57,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383718174] [2024-11-23 23:36:57,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:36:57,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:36:57,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:36:58,104 INFO L134 CoverageAnalysis]: Checked inductivity of 1224 backedges. 61 proven. 68 refuted. 0 times theorem prover too weak. 1095 trivial. 0 not checked. [2024-11-23 23:36:58,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:36:58,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383718174] [2024-11-23 23:36:58,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383718174] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:36:58,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313134634] [2024-11-23 23:36:58,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:36:58,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:36:58,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:36:58,108 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:36:58,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-23 23:36:58,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:36:58,840 INFO L256 TraceCheckSpWp]: Trace formula consists of 3311 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 23:36:58,851 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:36:58,934 INFO L134 CoverageAnalysis]: Checked inductivity of 1224 backedges. 651 proven. 0 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2024-11-23 23:36:58,935 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:36:58,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313134634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:36:58,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:36:58,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2024-11-23 23:36:58,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939771304] [2024-11-23 23:36:58,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:36:58,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:36:58,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:36:58,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:36:58,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:36:58,938 INFO L87 Difference]: Start difference. First operand 34237 states and 57030 transitions. Second operand has 6 states, 6 states have (on average 38.166666666666664) internal successors, (229), 5 states have internal predecessors, (229), 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) [2024-11-23 23:37:00,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:37:00,755 INFO L93 Difference]: Finished difference Result 68855 states and 115354 transitions. [2024-11-23 23:37:00,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:37:00,756 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.166666666666664) internal successors, (229), 5 states have internal predecessors, (229), 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 501 [2024-11-23 23:37:00,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:37:01,004 INFO L225 Difference]: With dead ends: 68855 [2024-11-23 23:37:01,004 INFO L226 Difference]: Without dead ends: 34687 [2024-11-23 23:37:01,416 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 513 GetRequests, 502 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:37:01,416 INFO L435 NwaCegarLoop]: 804 mSDtfsCounter, 0 mSDsluCounter, 3207 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4011 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:37:01,417 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4011 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:37:01,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34687 states. [2024-11-23 23:37:03,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34687 to 34561. [2024-11-23 23:37:03,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34561 states, 28175 states have (on average 1.6532031943212067) internal successors, (46579), 29082 states have internal predecessors, (46579), 4150 states have call successors, (4150), 1795 states have call predecessors, (4150), 2235 states have return successors, (6712), 4259 states have call predecessors, (6712), 4132 states have call successors, (6712) [2024-11-23 23:37:04,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34561 states to 34561 states and 57441 transitions. [2024-11-23 23:37:04,066 INFO L78 Accepts]: Start accepts. Automaton has 34561 states and 57441 transitions. Word has length 501 [2024-11-23 23:37:04,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:37:04,067 INFO L471 AbstractCegarLoop]: Abstraction has 34561 states and 57441 transitions. [2024-11-23 23:37:04,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.166666666666664) internal successors, (229), 5 states have internal predecessors, (229), 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) [2024-11-23 23:37:04,067 INFO L276 IsEmpty]: Start isEmpty. Operand 34561 states and 57441 transitions. [2024-11-23 23:37:04,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2024-11-23 23:37:04,256 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:37:04,256 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 12, 12, 12, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:37:04,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-23 23:37:04,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:37:04,457 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:37:04,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:37:04,459 INFO L85 PathProgramCache]: Analyzing trace with hash 273714718, now seen corresponding path program 1 times [2024-11-23 23:37:04,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:37:04,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468477635] [2024-11-23 23:37:04,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:37:04,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:37:04,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:37:05,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 90 proven. 95 refuted. 0 times theorem prover too weak. 1432 trivial. 0 not checked. [2024-11-23 23:37:05,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:37:05,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468477635] [2024-11-23 23:37:05,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468477635] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:37:05,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985545706] [2024-11-23 23:37:05,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:37:05,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:37:05,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:37:05,403 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:37:05,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-23 23:37:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:37:06,174 INFO L256 TraceCheckSpWp]: Trace formula consists of 3445 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-23 23:37:06,190 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:37:06,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 1034 proven. 25 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2024-11-23 23:37:06,707 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:37:07,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 117 proven. 99 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2024-11-23 23:37:07,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985545706] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:37:07,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:37:07,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 24 [2024-11-23 23:37:07,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969906377] [2024-11-23 23:37:07,667 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:37:07,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-23 23:37:07,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:37:07,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-23 23:37:07,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2024-11-23 23:37:07,671 INFO L87 Difference]: Start difference. First operand 34561 states and 57441 transitions. Second operand has 24 states, 21 states have (on average 23.61904761904762) internal successors, (496), 22 states have internal predecessors, (496), 17 states have call successors, (123), 8 states have call predecessors, (123), 15 states have return successors, (122), 16 states have call predecessors, (122), 17 states have call successors, (122) [2024-11-23 23:37:26,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:37:26,888 INFO L93 Difference]: Finished difference Result 134429 states and 237546 transitions. [2024-11-23 23:37:26,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2024-11-23 23:37:26,889 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 23.61904761904762) internal successors, (496), 22 states have internal predecessors, (496), 17 states have call successors, (123), 8 states have call predecessors, (123), 15 states have return successors, (122), 16 states have call predecessors, (122), 17 states have call successors, (122) Word has length 549 [2024-11-23 23:37:26,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:37:27,761 INFO L225 Difference]: With dead ends: 134429 [2024-11-23 23:37:27,761 INFO L226 Difference]: Without dead ends: 99953 [2024-11-23 23:37:28,327 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1197 GetRequests, 1108 SyntacticMatches, 4 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2272 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1262, Invalid=6220, Unknown=0, NotChecked=0, Total=7482 [2024-11-23 23:37:28,328 INFO L435 NwaCegarLoop]: 643 mSDtfsCounter, 12167 mSDsluCounter, 5636 mSDsCounter, 0 mSdLazyCounter, 17637 mSolverCounterSat, 4290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12167 SdHoareTripleChecker+Valid, 6279 SdHoareTripleChecker+Invalid, 21927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4290 IncrementalHoareTripleChecker+Valid, 17637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2024-11-23 23:37:28,329 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12167 Valid, 6279 Invalid, 21927 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4290 Valid, 17637 Invalid, 0 Unknown, 0 Unchecked, 10.8s Time] [2024-11-23 23:37:28,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99953 states. [2024-11-23 23:37:33,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99953 to 80699. [2024-11-23 23:37:33,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80699 states, 65472 states have (on average 1.6476509042033236) internal successors, (107875), 67815 states have internal predecessors, (107875), 9738 states have call successors, (9738), 4148 states have call predecessors, (9738), 5488 states have return successors, (16221), 10145 states have call predecessors, (16221), 9711 states have call successors, (16221) [2024-11-23 23:37:34,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80699 states to 80699 states and 133834 transitions. [2024-11-23 23:37:34,429 INFO L78 Accepts]: Start accepts. Automaton has 80699 states and 133834 transitions. Word has length 549 [2024-11-23 23:37:34,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:37:34,429 INFO L471 AbstractCegarLoop]: Abstraction has 80699 states and 133834 transitions. [2024-11-23 23:37:34,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 23.61904761904762) internal successors, (496), 22 states have internal predecessors, (496), 17 states have call successors, (123), 8 states have call predecessors, (123), 15 states have return successors, (122), 16 states have call predecessors, (122), 17 states have call successors, (122) [2024-11-23 23:37:34,430 INFO L276 IsEmpty]: Start isEmpty. Operand 80699 states and 133834 transitions. [2024-11-23 23:37:34,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2024-11-23 23:37:34,683 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:37:34,684 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:37:34,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-23 23:37:34,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:37:34,885 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:37:34,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:37:34,886 INFO L85 PathProgramCache]: Analyzing trace with hash -133007993, now seen corresponding path program 1 times [2024-11-23 23:37:34,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:37:34,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376935620] [2024-11-23 23:37:34,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:37:34,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:37:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:37:35,387 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 63 proven. 80 refuted. 0 times theorem prover too weak. 1100 trivial. 0 not checked. [2024-11-23 23:37:35,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:37:35,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376935620] [2024-11-23 23:37:35,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376935620] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:37:35,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644434282] [2024-11-23 23:37:35,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:37:35,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:37:35,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:37:35,390 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:37:35,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1062bda8-3635-4a2c-b740-32d2e7cbee3e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-23 23:37:36,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:37:36,118 INFO L256 TraceCheckSpWp]: Trace formula consists of 3363 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 23:37:36,133 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:37:36,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 581 proven. 4 refuted. 0 times theorem prover too weak. 658 trivial. 0 not checked. [2024-11-23 23:37:36,908 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:37:37,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 63 proven. 80 refuted. 0 times theorem prover too weak. 1100 trivial. 0 not checked. [2024-11-23 23:37:37,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644434282] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:37:37,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:37:37,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2024-11-23 23:37:37,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286530491] [2024-11-23 23:37:37,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:37:37,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-23 23:37:37,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:37:37,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-23 23:37:37,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2024-11-23 23:37:37,503 INFO L87 Difference]: Start difference. First operand 80699 states and 133834 transitions. Second operand has 18 states, 18 states have (on average 23.22222222222222) internal successors, (418), 18 states have internal predecessors, (418), 11 states have call successors, (93), 7 states have call predecessors, (93), 11 states have return successors, (94), 12 states have call predecessors, (94), 11 states have call successors, (94)