./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product56.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7173b4-6a33-4a10-b310-7407d98f86d8/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7173b4-6a33-4a10-b310-7407d98f86d8/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7173b4-6a33-4a10-b310-7407d98f86d8/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7173b4-6a33-4a10-b310-7407d98f86d8/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product56.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7173b4-6a33-4a10-b310-7407d98f86d8/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7173b4-6a33-4a10-b310-7407d98f86d8/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7bcd24ea8f621c8db79e853f5aaf064ffcae573e6c1e9f03eb1f84bb0c15fc3c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:38:54,074 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:38:54,147 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7173b4-6a33-4a10-b310-7407d98f86d8/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 23:38:54,153 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:38:54,154 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:38:54,199 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:38:54,204 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:38:54,204 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:38:54,205 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:38:54,205 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:38:54,205 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:38:54,206 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:38:54,206 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:38:54,206 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:38:54,206 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:38:54,207 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:38:54,208 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:38:54,208 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:38:54,208 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:38:54,209 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:38:54,209 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:38:54,209 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:38:54,209 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:38:54,209 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:38:54,209 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:38:54,209 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:38:54,209 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:38:54,210 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:38:54,210 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:38:54,210 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:38:54,210 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:38:54,210 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:38:54,210 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:38:54,210 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:38:54,210 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:38:54,210 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:38:54,211 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:38:54,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:38:54,211 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:38:54,211 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:38:54,211 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:38:54,211 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:38:54,211 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:38:54,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:38:54,211 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:38:54,211 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:38:54,211 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:38:54,212 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:38:54,212 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_8e7173b4-6a33-4a10-b310-7407d98f86d8/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7bcd24ea8f621c8db79e853f5aaf064ffcae573e6c1e9f03eb1f84bb0c15fc3c [2024-11-27 23:38:54,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:38:54,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:38:54,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:38:54,564 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:38:54,564 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:38:54,566 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7173b4-6a33-4a10-b310-7407d98f86d8/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/minepump_spec5_product56.cil.c [2024-11-27 23:38:57,529 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7173b4-6a33-4a10-b310-7407d98f86d8/bin/uautomizer-verify-aQ6SnzHsRB/data/14aefe6c6/061dbc3d2418458a986a6b16ec6752e1/FLAG489892b06 [2024-11-27 23:38:57,863 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:38:57,863 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7173b4-6a33-4a10-b310-7407d98f86d8/sv-benchmarks/c/product-lines/minepump_spec5_product56.cil.c [2024-11-27 23:38:57,876 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7173b4-6a33-4a10-b310-7407d98f86d8/bin/uautomizer-verify-aQ6SnzHsRB/data/14aefe6c6/061dbc3d2418458a986a6b16ec6752e1/FLAG489892b06 [2024-11-27 23:38:57,892 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7173b4-6a33-4a10-b310-7407d98f86d8/bin/uautomizer-verify-aQ6SnzHsRB/data/14aefe6c6/061dbc3d2418458a986a6b16ec6752e1 [2024-11-27 23:38:57,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:38:57,896 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:38:57,898 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:38:57,898 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:38:57,903 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:38:57,904 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:38:57" (1/1) ... [2024-11-27 23:38:57,905 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cbeb916 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:57, skipping insertion in model container [2024-11-27 23:38:57,905 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:38:57" (1/1) ... [2024-11-27 23:38:57,937 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:38:58,176 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_8e7173b4-6a33-4a10-b310-7407d98f86d8/sv-benchmarks/c/product-lines/minepump_spec5_product56.cil.c[8146,8159] [2024-11-27 23:38:58,286 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:38:58,301 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:38:58,310 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2024-11-27 23:38:58,312 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [160] [2024-11-27 23:38:58,312 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [418] [2024-11-27 23:38:58,312 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [488] [2024-11-27 23:38:58,312 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [526] [2024-11-27 23:38:58,313 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [535] [2024-11-27 23:38:58,313 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [584] [2024-11-27 23:38:58,313 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [950] [2024-11-27 23:38:58,337 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_8e7173b4-6a33-4a10-b310-7407d98f86d8/sv-benchmarks/c/product-lines/minepump_spec5_product56.cil.c[8146,8159] [2024-11-27 23:38:58,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:38:58,405 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:38:58,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:58 WrapperNode [2024-11-27 23:38:58,406 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:38:58,407 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:38:58,407 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:38:58,407 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:38:58,414 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:58" (1/1) ... [2024-11-27 23:38:58,425 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:58" (1/1) ... [2024-11-27 23:38:58,450 INFO L138 Inliner]: procedures = 60, calls = 108, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 240 [2024-11-27 23:38:58,450 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:38:58,451 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:38:58,451 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:38:58,451 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:38:58,461 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:58" (1/1) ... [2024-11-27 23:38:58,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:58" (1/1) ... [2024-11-27 23:38:58,464 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:58" (1/1) ... [2024-11-27 23:38:58,479 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 23:38:58,479 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:58" (1/1) ... [2024-11-27 23:38:58,479 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:58" (1/1) ... [2024-11-27 23:38:58,485 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:58" (1/1) ... [2024-11-27 23:38:58,486 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:58" (1/1) ... [2024-11-27 23:38:58,491 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:58" (1/1) ... [2024-11-27 23:38:58,493 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:58" (1/1) ... [2024-11-27 23:38:58,494 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:58" (1/1) ... [2024-11-27 23:38:58,496 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:38:58,497 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:38:58,497 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:38:58,497 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:38:58,498 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:58" (1/1) ... [2024-11-27 23:38:58,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:38:58,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7173b4-6a33-4a10-b310-7407d98f86d8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:38:58,536 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7173b4-6a33-4a10-b310-7407d98f86d8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:38:58,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7173b4-6a33-4a10-b310-7407d98f86d8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:38:58,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:38:58,571 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-27 23:38:58,571 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-27 23:38:58,571 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-27 23:38:58,572 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-27 23:38:58,572 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-27 23:38:58,572 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-27 23:38:58,572 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-27 23:38:58,572 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-27 23:38:58,572 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-27 23:38:58,572 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-27 23:38:58,572 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2024-11-27 23:38:58,572 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2024-11-27 23:38:58,572 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-11-27 23:38:58,572 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-11-27 23:38:58,572 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-27 23:38:58,573 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-27 23:38:58,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:38:58,573 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-27 23:38:58,573 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-27 23:38:58,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:38:58,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:38:58,643 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:38:58,645 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:38:59,050 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-27 23:38:59,050 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:38:59,067 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:38:59,070 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-27 23:38:59,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:38:59 BoogieIcfgContainer [2024-11-27 23:38:59,070 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:38:59,073 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:38:59,073 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:38:59,077 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:38:59,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:38:57" (1/3) ... [2024-11-27 23:38:59,079 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@752523cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:38:59, skipping insertion in model container [2024-11-27 23:38:59,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:38:58" (2/3) ... [2024-11-27 23:38:59,080 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@752523cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:38:59, skipping insertion in model container [2024-11-27 23:38:59,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:38:59" (3/3) ... [2024-11-27 23:38:59,082 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product56.cil.c [2024-11-27 23:38:59,099 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:38:59,100 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec5_product56.cil.c that has 10 procedures, 108 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-27 23:38:59,171 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:38:59,184 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;@19df6d1d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:38:59,184 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 23:38:59,189 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 80 states have (on average 1.375) internal successors, (110), 91 states have internal predecessors, (110), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 23:38:59,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-27 23:38:59,199 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:38:59,199 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 23:38:59,200 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:38:59,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:59,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1075136898, now seen corresponding path program 1 times [2024-11-27 23:38:59,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:59,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065357087] [2024-11-27 23:38:59,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:59,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:59,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:59,433 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 23:38:59,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:59,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065357087] [2024-11-27 23:38:59,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065357087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:59,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:59,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:38:59,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710600674] [2024-11-27 23:38:59,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:59,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 23:38:59,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:59,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 23:38:59,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:38:59,468 INFO L87 Difference]: Start difference. First operand has 108 states, 80 states have (on average 1.375) internal successors, (110), 91 states have internal predecessors, (110), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 23:38:59,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:38:59,512 INFO L93 Difference]: Finished difference Result 207 states and 282 transitions. [2024-11-27 23:38:59,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 23:38:59,514 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-27 23:38:59,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:38:59,523 INFO L225 Difference]: With dead ends: 207 [2024-11-27 23:38:59,526 INFO L226 Difference]: Without dead ends: 99 [2024-11-27 23:38:59,530 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:38:59,534 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:38:59,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:38:59,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-27 23:38:59,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-27 23:38:59,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 73 states have (on average 1.3150684931506849) internal successors, (96), 83 states have internal predecessors, (96), 17 states have call successors, (17), 9 states have call predecessors, (17), 8 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-27 23:38:59,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 129 transitions. [2024-11-27 23:38:59,577 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 129 transitions. Word has length 32 [2024-11-27 23:38:59,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:38:59,577 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 129 transitions. [2024-11-27 23:38:59,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 23:38:59,578 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 129 transitions. [2024-11-27 23:38:59,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-27 23:38:59,580 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:38:59,580 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 23:38:59,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 23:38:59,581 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:38:59,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:59,582 INFO L85 PathProgramCache]: Analyzing trace with hash 673096380, now seen corresponding path program 1 times [2024-11-27 23:38:59,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:59,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702635619] [2024-11-27 23:38:59,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:59,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:59,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:59,765 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 23:38:59,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:59,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702635619] [2024-11-27 23:38:59,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702635619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:59,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:59,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:38:59,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142329192] [2024-11-27 23:38:59,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:59,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:38:59,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:59,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:38:59,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:38:59,771 INFO L87 Difference]: Start difference. First operand 99 states and 129 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 23:38:59,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:38:59,805 INFO L93 Difference]: Finished difference Result 160 states and 208 transitions. [2024-11-27 23:38:59,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:38:59,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-27 23:38:59,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:38:59,809 INFO L225 Difference]: With dead ends: 160 [2024-11-27 23:38:59,809 INFO L226 Difference]: Without dead ends: 91 [2024-11-27 23:38:59,810 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:38:59,811 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 17 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:38:59,813 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 213 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:38:59,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-27 23:38:59,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-27 23:38:59,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 68 states have (on average 1.3235294117647058) internal successors, (90), 78 states have internal predecessors, (90), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-27 23:38:59,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 118 transitions. [2024-11-27 23:38:59,834 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 118 transitions. Word has length 32 [2024-11-27 23:38:59,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:38:59,834 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 118 transitions. [2024-11-27 23:38:59,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 23:38:59,837 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 118 transitions. [2024-11-27 23:38:59,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-27 23:38:59,839 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:38:59,839 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 23:38:59,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:38:59,839 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:38:59,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:59,840 INFO L85 PathProgramCache]: Analyzing trace with hash -569956059, now seen corresponding path program 1 times [2024-11-27 23:38:59,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:59,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013006215] [2024-11-27 23:38:59,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:59,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:59,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:59,989 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 23:38:59,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:59,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013006215] [2024-11-27 23:38:59,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013006215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:59,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:59,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:38:59,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687130043] [2024-11-27 23:38:59,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:59,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:38:59,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:59,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:38:59,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:38:59,992 INFO L87 Difference]: Start difference. First operand 91 states and 118 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:39:00,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:39:00,055 INFO L93 Difference]: Finished difference Result 255 states and 337 transitions. [2024-11-27 23:39:00,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:39:00,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2024-11-27 23:39:00,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:39:00,058 INFO L225 Difference]: With dead ends: 255 [2024-11-27 23:39:00,059 INFO L226 Difference]: Without dead ends: 172 [2024-11-27 23:39:00,059 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:39:00,060 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 106 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:39:00,061 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 239 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:39:00,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-27 23:39:00,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 169. [2024-11-27 23:39:00,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 124 states have (on average 1.346774193548387) internal successors, (167), 143 states have internal predecessors, (167), 28 states have call successors, (28), 16 states have call predecessors, (28), 16 states have return successors, (28), 17 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-27 23:39:00,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 223 transitions. [2024-11-27 23:39:00,086 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 223 transitions. Word has length 37 [2024-11-27 23:39:00,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:39:00,087 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 223 transitions. [2024-11-27 23:39:00,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:39:00,087 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 223 transitions. [2024-11-27 23:39:00,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-27 23:39:00,089 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:39:00,089 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 23:39:00,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:39:00,090 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:39:00,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:39:00,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1788273631, now seen corresponding path program 1 times [2024-11-27 23:39:00,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:39:00,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835143425] [2024-11-27 23:39:00,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:39:00,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:39:00,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:39:00,275 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:39:00,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:39:00,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835143425] [2024-11-27 23:39:00,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835143425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:39:00,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:39:00,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:39:00,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94964888] [2024-11-27 23:39:00,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:39:00,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:39:00,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:39:00,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:39:00,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:39:00,279 INFO L87 Difference]: Start difference. First operand 169 states and 223 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:39:00,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:39:00,537 INFO L93 Difference]: Finished difference Result 427 states and 580 transitions. [2024-11-27 23:39:00,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:39:00,538 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 40 [2024-11-27 23:39:00,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:39:00,541 INFO L225 Difference]: With dead ends: 427 [2024-11-27 23:39:00,541 INFO L226 Difference]: Without dead ends: 266 [2024-11-27 23:39:00,543 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:39:00,544 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 78 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:39:00,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 512 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:39:00,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-11-27 23:39:00,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 265. [2024-11-27 23:39:00,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 196 states have (on average 1.2959183673469388) internal successors, (254), 213 states have internal predecessors, (254), 38 states have call successors, (38), 30 states have call predecessors, (38), 30 states have return successors, (50), 33 states have call predecessors, (50), 38 states have call successors, (50) [2024-11-27 23:39:00,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 342 transitions. [2024-11-27 23:39:00,581 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 342 transitions. Word has length 40 [2024-11-27 23:39:00,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:39:00,582 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 342 transitions. [2024-11-27 23:39:00,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:39:00,582 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 342 transitions. [2024-11-27 23:39:00,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-27 23:39:00,584 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:39:00,584 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 23:39:00,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:39:00,585 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:39:00,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:39:00,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1126193926, now seen corresponding path program 1 times [2024-11-27 23:39:00,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:39:00,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029694369] [2024-11-27 23:39:00,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:39:00,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:39:00,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:39:00,742 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 23:39:00,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:39:00,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029694369] [2024-11-27 23:39:00,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029694369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:39:00,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:39:00,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:39:00,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914953127] [2024-11-27 23:39:00,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:39:00,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:39:00,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:39:00,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:39:00,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:39:00,745 INFO L87 Difference]: Start difference. First operand 265 states and 342 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 23:39:00,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:39:00,791 INFO L93 Difference]: Finished difference Result 528 states and 696 transitions. [2024-11-27 23:39:00,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:39:00,792 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2024-11-27 23:39:00,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:39:00,797 INFO L225 Difference]: With dead ends: 528 [2024-11-27 23:39:00,797 INFO L226 Difference]: Without dead ends: 271 [2024-11-27 23:39:00,798 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:39:00,799 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 0 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:39:00,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 454 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:39:00,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-11-27 23:39:00,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2024-11-27 23:39:00,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 202 states have (on average 1.2871287128712872) internal successors, (260), 219 states have internal predecessors, (260), 38 states have call successors, (38), 30 states have call predecessors, (38), 30 states have return successors, (50), 33 states have call predecessors, (50), 38 states have call successors, (50) [2024-11-27 23:39:00,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 348 transitions. [2024-11-27 23:39:00,867 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 348 transitions. Word has length 56 [2024-11-27 23:39:00,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:39:00,867 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 348 transitions. [2024-11-27 23:39:00,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 23:39:00,867 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 348 transitions. [2024-11-27 23:39:00,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-27 23:39:00,870 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:39:00,870 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 23:39:00,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:39:00,871 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:39:00,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:39:00,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1548895752, now seen corresponding path program 1 times [2024-11-27 23:39:00,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:39:00,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722260398] [2024-11-27 23:39:00,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:39:00,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:39:00,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:39:01,028 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 23:39:01,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:39:01,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722260398] [2024-11-27 23:39:01,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722260398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:39:01,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:39:01,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:39:01,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462198300] [2024-11-27 23:39:01,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:39:01,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:39:01,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:39:01,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:39:01,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:39:01,030 INFO L87 Difference]: Start difference. First operand 271 states and 348 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 23:39:01,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:39:01,124 INFO L93 Difference]: Finished difference Result 542 states and 721 transitions. [2024-11-27 23:39:01,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:39:01,125 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 56 [2024-11-27 23:39:01,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:39:01,128 INFO L225 Difference]: With dead ends: 542 [2024-11-27 23:39:01,128 INFO L226 Difference]: Without dead ends: 279 [2024-11-27 23:39:01,129 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:39:01,130 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 108 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 466 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 [2024-11-27 23:39:01,130 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 466 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:39:01,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2024-11-27 23:39:01,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 275. [2024-11-27 23:39:01,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 206 states have (on average 1.2815533980582525) internal successors, (264), 223 states have internal predecessors, (264), 38 states have call successors, (38), 30 states have call predecessors, (38), 30 states have return successors, (50), 33 states have call predecessors, (50), 38 states have call successors, (50) [2024-11-27 23:39:01,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 352 transitions. [2024-11-27 23:39:01,176 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 352 transitions. Word has length 56 [2024-11-27 23:39:01,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:39:01,176 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 352 transitions. [2024-11-27 23:39:01,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 23:39:01,176 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 352 transitions. [2024-11-27 23:39:01,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-27 23:39:01,178 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:39:01,178 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 23:39:01,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:39:01,178 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:39:01,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:39:01,179 INFO L85 PathProgramCache]: Analyzing trace with hash -256542582, now seen corresponding path program 1 times [2024-11-27 23:39:01,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:39:01,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674040524] [2024-11-27 23:39:01,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:39:01,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:39:01,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:39:01,304 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 23:39:01,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:39:01,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674040524] [2024-11-27 23:39:01,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674040524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:39:01,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:39:01,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:39:01,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407126455] [2024-11-27 23:39:01,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:39:01,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:39:01,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:39:01,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:39:01,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:39:01,307 INFO L87 Difference]: Start difference. First operand 275 states and 352 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 23:39:01,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:39:01,577 INFO L93 Difference]: Finished difference Result 909 states and 1201 transitions. [2024-11-27 23:39:01,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:39:01,578 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 56 [2024-11-27 23:39:01,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:39:01,585 INFO L225 Difference]: With dead ends: 909 [2024-11-27 23:39:01,585 INFO L226 Difference]: Without dead ends: 642 [2024-11-27 23:39:01,588 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:39:01,589 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 152 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:39:01,591 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 395 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:39:01,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2024-11-27 23:39:01,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 630. [2024-11-27 23:39:01,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 469 states have (on average 1.2537313432835822) internal successors, (588), 502 states have internal predecessors, (588), 88 states have call successors, (88), 70 states have call predecessors, (88), 72 states have return successors, (138), 80 states have call predecessors, (138), 88 states have call successors, (138) [2024-11-27 23:39:01,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 814 transitions. [2024-11-27 23:39:01,703 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 814 transitions. Word has length 56 [2024-11-27 23:39:01,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:39:01,705 INFO L471 AbstractCegarLoop]: Abstraction has 630 states and 814 transitions. [2024-11-27 23:39:01,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 23:39:01,706 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 814 transitions. [2024-11-27 23:39:01,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-27 23:39:01,708 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:39:01,708 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 23:39:01,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 23:39:01,709 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:39:01,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:39:01,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1934463664, now seen corresponding path program 1 times [2024-11-27 23:39:01,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:39:01,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007044715] [2024-11-27 23:39:01,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:39:01,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:39:01,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:39:02,083 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 23:39:02,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:39:02,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007044715] [2024-11-27 23:39:02,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007044715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:39:02,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:39:02,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:39:02,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286070578] [2024-11-27 23:39:02,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:39:02,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:39:02,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:39:02,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:39:02,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:39:02,087 INFO L87 Difference]: Start difference. First operand 630 states and 814 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-27 23:39:02,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:39:02,919 INFO L93 Difference]: Finished difference Result 1854 states and 2480 transitions. [2024-11-27 23:39:02,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:39:02,920 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 60 [2024-11-27 23:39:02,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:39:02,937 INFO L225 Difference]: With dead ends: 1854 [2024-11-27 23:39:02,938 INFO L226 Difference]: Without dead ends: 1344 [2024-11-27 23:39:02,945 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:39:02,945 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 427 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:39:02,946 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 584 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:39:02,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2024-11-27 23:39:03,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 1213. [2024-11-27 23:39:03,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1213 states, 898 states have (on average 1.230512249443207) internal successors, (1105), 962 states have internal predecessors, (1105), 165 states have call successors, (165), 123 states have call predecessors, (165), 149 states have return successors, (273), 162 states have call predecessors, (273), 165 states have call successors, (273) [2024-11-27 23:39:03,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1213 states to 1213 states and 1543 transitions. [2024-11-27 23:39:03,170 INFO L78 Accepts]: Start accepts. Automaton has 1213 states and 1543 transitions. Word has length 60 [2024-11-27 23:39:03,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:39:03,172 INFO L471 AbstractCegarLoop]: Abstraction has 1213 states and 1543 transitions. [2024-11-27 23:39:03,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-27 23:39:03,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1213 states and 1543 transitions. [2024-11-27 23:39:03,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-27 23:39:03,176 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:39:03,177 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 23:39:03,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 23:39:03,178 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:39:03,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:39:03,182 INFO L85 PathProgramCache]: Analyzing trace with hash -124259497, now seen corresponding path program 1 times [2024-11-27 23:39:03,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:39:03,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249091712] [2024-11-27 23:39:03,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:39:03,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:39:03,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:39:03,304 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-27 23:39:03,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:39:03,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249091712] [2024-11-27 23:39:03,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249091712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:39:03,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:39:03,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:39:03,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043337032] [2024-11-27 23:39:03,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:39:03,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:39:03,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:39:03,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:39:03,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:39:03,309 INFO L87 Difference]: Start difference. First operand 1213 states and 1543 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-27 23:39:03,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:39:03,566 INFO L93 Difference]: Finished difference Result 2007 states and 2547 transitions. [2024-11-27 23:39:03,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:39:03,569 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 89 [2024-11-27 23:39:03,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:39:03,578 INFO L225 Difference]: With dead ends: 2007 [2024-11-27 23:39:03,578 INFO L226 Difference]: Without dead ends: 802 [2024-11-27 23:39:03,581 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 [2024-11-27 23:39:03,582 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 147 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:39:03,582 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 277 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:39:03,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2024-11-27 23:39:03,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 792. [2024-11-27 23:39:03,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 592 states have (on average 1.2195945945945945) internal successors, (722), 634 states have internal predecessors, (722), 105 states have call successors, (105), 80 states have call predecessors, (105), 94 states have return successors, (160), 105 states have call predecessors, (160), 105 states have call successors, (160) [2024-11-27 23:39:03,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 987 transitions. [2024-11-27 23:39:03,667 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 987 transitions. Word has length 89 [2024-11-27 23:39:03,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:39:03,668 INFO L471 AbstractCegarLoop]: Abstraction has 792 states and 987 transitions. [2024-11-27 23:39:03,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-27 23:39:03,668 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 987 transitions. [2024-11-27 23:39:03,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-27 23:39:03,671 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:39:03,672 INFO L218 NwaCegarLoop]: trace histogram [3, 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] [2024-11-27 23:39:03,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 23:39:03,672 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:39:03,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:39:03,674 INFO L85 PathProgramCache]: Analyzing trace with hash -203806363, now seen corresponding path program 1 times [2024-11-27 23:39:03,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:39:03,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603580194] [2024-11-27 23:39:03,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:39:03,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:39:03,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:39:03,906 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-27 23:39:03,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:39:03,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603580194] [2024-11-27 23:39:03,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603580194] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:39:03,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049972084] [2024-11-27 23:39:03,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:39:03,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:39:03,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7173b4-6a33-4a10-b310-7407d98f86d8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:39:03,911 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7173b4-6a33-4a10-b310-7407d98f86d8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:39:03,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7173b4-6a33-4a10-b310-7407d98f86d8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:39:04,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:39:04,053 INFO L256 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 23:39:04,060 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:39:04,327 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 26 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:39:04,328 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:39:04,646 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-27 23:39:04,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049972084] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:39:04,646 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:39:04,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 15 [2024-11-27 23:39:04,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632389428] [2024-11-27 23:39:04,647 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:39:04,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 23:39:04,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:39:04,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 23:39:04,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:39:04,650 INFO L87 Difference]: Start difference. First operand 792 states and 987 transitions. Second operand has 15 states, 15 states have (on average 9.466666666666667) internal successors, (142), 13 states have internal predecessors, (142), 7 states have call successors, (22), 4 states have call predecessors, (22), 8 states have return successors, (21), 9 states have call predecessors, (21), 7 states have call successors, (21) [2024-11-27 23:39:05,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:39:05,646 INFO L93 Difference]: Finished difference Result 1823 states and 2334 transitions. [2024-11-27 23:39:05,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-27 23:39:05,646 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 9.466666666666667) internal successors, (142), 13 states have internal predecessors, (142), 7 states have call successors, (22), 4 states have call predecessors, (22), 8 states have return successors, (21), 9 states have call predecessors, (21), 7 states have call successors, (21) Word has length 109 [2024-11-27 23:39:05,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:39:05,680 INFO L225 Difference]: With dead ends: 1823 [2024-11-27 23:39:05,680 INFO L226 Difference]: Without dead ends: 1126 [2024-11-27 23:39:05,684 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 215 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=260, Invalid=862, Unknown=0, NotChecked=0, Total=1122 [2024-11-27 23:39:05,685 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 397 mSDsluCounter, 1444 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 1686 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:39:05,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 1686 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:39:05,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2024-11-27 23:39:05,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 973. [2024-11-27 23:39:05,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 973 states, 717 states have (on average 1.203626220362622) internal successors, (863), 776 states have internal predecessors, (863), 132 states have call successors, (132), 110 states have call predecessors, (132), 123 states have return successors, (178), 127 states have call predecessors, (178), 132 states have call successors, (178) [2024-11-27 23:39:05,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1173 transitions. [2024-11-27 23:39:05,805 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1173 transitions. Word has length 109 [2024-11-27 23:39:05,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:39:05,806 INFO L471 AbstractCegarLoop]: Abstraction has 973 states and 1173 transitions. [2024-11-27 23:39:05,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.466666666666667) internal successors, (142), 13 states have internal predecessors, (142), 7 states have call successors, (22), 4 states have call predecessors, (22), 8 states have return successors, (21), 9 states have call predecessors, (21), 7 states have call successors, (21) [2024-11-27 23:39:05,807 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1173 transitions. [2024-11-27 23:39:05,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-27 23:39:05,812 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:39:05,817 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2024-11-27 23:39:05,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7173b4-6a33-4a10-b310-7407d98f86d8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 23:39:06,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7173b4-6a33-4a10-b310-7407d98f86d8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-27 23:39:06,017 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:39:06,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:39:06,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1809052159, now seen corresponding path program 1 times [2024-11-27 23:39:06,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:39:06,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394935864] [2024-11-27 23:39:06,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:39:06,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:39:06,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:39:06,378 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 73 proven. 2 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-11-27 23:39:06,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:39:06,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394935864] [2024-11-27 23:39:06,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394935864] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:39:06,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126986087] [2024-11-27 23:39:06,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:39:06,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:39:06,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7173b4-6a33-4a10-b310-7407d98f86d8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:39:06,385 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7173b4-6a33-4a10-b310-7407d98f86d8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:39:06,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7173b4-6a33-4a10-b310-7407d98f86d8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:39:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:39:06,572 INFO L256 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 23:39:06,583 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:39:06,883 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 147 proven. 3 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-27 23:39:06,883 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:39:07,590 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 78 proven. 41 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-27 23:39:07,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126986087] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:39:07,591 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:39:07,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 11] total 23 [2024-11-27 23:39:07,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741702852] [2024-11-27 23:39:07,591 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:39:07,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-27 23:39:07,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:39:07,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-27 23:39:07,593 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2024-11-27 23:39:07,594 INFO L87 Difference]: Start difference. First operand 973 states and 1173 transitions. Second operand has 23 states, 23 states have (on average 9.434782608695652) internal successors, (217), 22 states have internal predecessors, (217), 9 states have call successors, (35), 7 states have call predecessors, (35), 10 states have return successors, (37), 8 states have call predecessors, (37), 9 states have call successors, (37) [2024-11-27 23:39:08,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:39:08,932 INFO L93 Difference]: Finished difference Result 2163 states and 2700 transitions. [2024-11-27 23:39:08,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 23:39:08,933 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 9.434782608695652) internal successors, (217), 22 states have internal predecessors, (217), 9 states have call successors, (35), 7 states have call predecessors, (35), 10 states have return successors, (37), 8 states have call predecessors, (37), 9 states have call successors, (37) Word has length 191 [2024-11-27 23:39:08,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:39:08,935 INFO L225 Difference]: With dead ends: 2163 [2024-11-27 23:39:08,935 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 23:39:08,942 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 370 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=281, Invalid=979, Unknown=0, NotChecked=0, Total=1260 [2024-11-27 23:39:08,943 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 367 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 1417 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 1562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 1417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:39:08,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 1138 Invalid, 1562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 1417 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 23:39:08,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 23:39:08,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 23:39:08,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:39:08,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 23:39:08,946 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 191 [2024-11-27 23:39:08,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:39:08,946 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 23:39:08,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.434782608695652) internal successors, (217), 22 states have internal predecessors, (217), 9 states have call successors, (35), 7 states have call predecessors, (35), 10 states have return successors, (37), 8 states have call predecessors, (37), 9 states have call successors, (37) [2024-11-27 23:39:08,946 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 23:39:08,947 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 23:39:08,949 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 23:39:08,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7173b4-6a33-4a10-b310-7407d98f86d8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 23:39:09,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7173b4-6a33-4a10-b310-7407d98f86d8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-27 23:39:09,152 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:39:09,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-27 23:39:18,050 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 23:39:18,064 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:39:18 BoogieIcfgContainer [2024-11-27 23:39:18,064 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 23:39:18,065 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:39:18,065 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:39:18,065 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:39:18,066 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:38:59" (3/4) ... [2024-11-27 23:39:18,068 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 23:39:18,074 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-27 23:39:18,074 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-27 23:39:18,074 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-27 23:39:18,074 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-27 23:39:18,074 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-27 23:39:18,074 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-27 23:39:18,075 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-27 23:39:18,075 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2024-11-27 23:39:18,075 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-11-27 23:39:18,083 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-27 23:39:18,083 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-27 23:39:18,084 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-27 23:39:18,084 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 23:39:18,084 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 23:39:18,193 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7173b4-6a33-4a10-b310-7407d98f86d8/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 23:39:18,193 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7173b4-6a33-4a10-b310-7407d98f86d8/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 23:39:18,194 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:39:18,194 INFO L158 Benchmark]: Toolchain (without parser) took 20298.61ms. Allocated memory was 142.6MB in the beginning and 369.1MB in the end (delta: 226.5MB). Free memory was 105.5MB in the beginning and 153.3MB in the end (delta: -47.8MB). Peak memory consumption was 174.3MB. Max. memory is 16.1GB. [2024-11-27 23:39:18,195 INFO L158 Benchmark]: CDTParser took 1.39ms. Allocated memory is still 167.8MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:39:18,195 INFO L158 Benchmark]: CACSL2BoogieTranslator took 508.38ms. Allocated memory is still 142.6MB. Free memory was 105.2MB in the beginning and 86.2MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 23:39:18,195 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.66ms. Allocated memory is still 142.6MB. Free memory was 86.2MB in the beginning and 84.2MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:39:18,196 INFO L158 Benchmark]: Boogie Preprocessor took 45.58ms. Allocated memory is still 142.6MB. Free memory was 84.2MB in the beginning and 82.0MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:39:18,196 INFO L158 Benchmark]: RCFGBuilder took 573.23ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 63.5MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 23:39:18,196 INFO L158 Benchmark]: TraceAbstraction took 18991.67ms. Allocated memory was 142.6MB in the beginning and 369.1MB in the end (delta: 226.5MB). Free memory was 62.9MB in the beginning and 161.4MB in the end (delta: -98.5MB). Peak memory consumption was 160.7MB. Max. memory is 16.1GB. [2024-11-27 23:39:18,196 INFO L158 Benchmark]: Witness Printer took 128.74ms. Allocated memory is still 369.1MB. Free memory was 161.4MB in the beginning and 153.3MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:39:18,198 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.39ms. Allocated memory is still 167.8MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 508.38ms. Allocated memory is still 142.6MB. Free memory was 105.2MB in the beginning and 86.2MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.66ms. Allocated memory is still 142.6MB. Free memory was 86.2MB in the beginning and 84.2MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.58ms. Allocated memory is still 142.6MB. Free memory was 84.2MB in the beginning and 82.0MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 573.23ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 63.5MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 18991.67ms. Allocated memory was 142.6MB in the beginning and 369.1MB in the end (delta: 226.5MB). Free memory was 62.9MB in the beginning and 161.4MB in the end (delta: -98.5MB). Peak memory consumption was 160.7MB. Max. memory is 16.1GB. * Witness Printer took 128.74ms. Allocated memory is still 369.1MB. Free memory was 161.4MB in the beginning and 153.3MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] - GenericResultAtLocation [Line: 160]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [160] - GenericResultAtLocation [Line: 418]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [418] - GenericResultAtLocation [Line: 488]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [488] - GenericResultAtLocation [Line: 526]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [526] - GenericResultAtLocation [Line: 535]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [535] - GenericResultAtLocation [Line: 584]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [584] - GenericResultAtLocation [Line: 950]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [950] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 531]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 108 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.0s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1828 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1799 mSDsluCounter, 6102 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4492 mSDsCounter, 406 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2434 IncrementalHoareTripleChecker+Invalid, 2840 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 406 mSolverCounterUnsat, 1610 mSDtfsCounter, 2434 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 715 GetRequests, 610 SyntacticMatches, 7 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1213occurred in iteration=8, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 11 MinimizatonAttempts, 314 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 1058 NumberOfCodeBlocks, 1058 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1343 ConstructedInterpolants, 0 QuantifiedInterpolants, 2497 SizeOfPredicates, 2 NumberOfNonLiveVariables, 916 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 15 InterpolantComputations, 9 PerfectInterpolantSequences, 685/765 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 429]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 430]: Loop Invariant Derived loop invariant: (((((((((pumpRunning == 0) && (2 == waterLevel)) && (splverifierCounter == 0)) && (0 == systemActive)) || ((((pumpRunning == 0) && (waterLevel <= 1)) && (splverifierCounter == 0)) && (0 == systemActive))) || ((((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) || (((((waterLevel <= 1) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) || ((((2 == waterLevel) && (1 == systemActive)) && (splverifierCounter == 0)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 962]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-11-27 23:39:18,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7173b4-6a33-4a10-b310-7407d98f86d8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE