./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product62.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_35751be7-e183-4ce3-8121-e154f8a5bc4f/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35751be7-e183-4ce3-8121-e154f8a5bc4f/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35751be7-e183-4ce3-8121-e154f8a5bc4f/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35751be7-e183-4ce3-8121-e154f8a5bc4f/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product62.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35751be7-e183-4ce3-8121-e154f8a5bc4f/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35751be7-e183-4ce3-8121-e154f8a5bc4f/bin/uautomizer-verify-84ZbGMXZE1 --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 4d13ffd2557e7d7902d8a5eac414f9fb7393252d85c14855e86000741be6847f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:36:52,475 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:36:52,532 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35751be7-e183-4ce3-8121-e154f8a5bc4f/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 12:36:52,537 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:36:52,537 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:36:52,560 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:36:52,560 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:36:52,561 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:36:52,561 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:36:52,561 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:36:52,561 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:36:52,561 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:36:52,562 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:36:52,562 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:36:52,562 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:36:52,562 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:36:52,562 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:36:52,562 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 12:36:52,562 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 12:36:52,562 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 12:36:52,562 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:36:52,563 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:36:52,563 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:36:52,563 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:36:52,563 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 12:36:52,563 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:36:52,563 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:36:52,563 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:36:52,563 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:36:52,563 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:36:52,563 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:36:52,563 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:36:52,564 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:36:52,564 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:36:52,564 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:36:52,564 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:36:52,564 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:36:52,564 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:36:52,564 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:36:52,564 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:36:52,564 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:36:52,564 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:36:52,564 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 12:36:52,565 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 12:36:52,565 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:36:52,565 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:36:52,565 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:36:52,565 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:36:52,565 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_35751be7-e183-4ce3-8121-e154f8a5bc4f/bin/uautomizer-verify-84ZbGMXZE1 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 -> 4d13ffd2557e7d7902d8a5eac414f9fb7393252d85c14855e86000741be6847f [2024-12-02 12:36:52,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:36:52,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:36:52,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:36:52,806 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:36:52,806 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:36:52,807 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35751be7-e183-4ce3-8121-e154f8a5bc4f/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/minepump_spec3_product62.cil.c [2024-12-02 12:36:55,482 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35751be7-e183-4ce3-8121-e154f8a5bc4f/bin/uautomizer-verify-84ZbGMXZE1/data/2c608bb25/97bb17a150764fd38c7e229f1abf7cb1/FLAG48b48e72a [2024-12-02 12:36:55,729 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:36:55,730 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35751be7-e183-4ce3-8121-e154f8a5bc4f/sv-benchmarks/c/product-lines/minepump_spec3_product62.cil.c [2024-12-02 12:36:55,743 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35751be7-e183-4ce3-8121-e154f8a5bc4f/bin/uautomizer-verify-84ZbGMXZE1/data/2c608bb25/97bb17a150764fd38c7e229f1abf7cb1/FLAG48b48e72a [2024-12-02 12:36:56,069 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35751be7-e183-4ce3-8121-e154f8a5bc4f/bin/uautomizer-verify-84ZbGMXZE1/data/2c608bb25/97bb17a150764fd38c7e229f1abf7cb1 [2024-12-02 12:36:56,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:36:56,073 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:36:56,074 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:36:56,074 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:36:56,078 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:36:56,078 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:36:56" (1/1) ... [2024-12-02 12:36:56,079 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f0439f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:56, skipping insertion in model container [2024-12-02 12:36:56,079 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:36:56" (1/1) ... [2024-12-02 12:36:56,107 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:36:56,245 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_35751be7-e183-4ce3-8121-e154f8a5bc4f/sv-benchmarks/c/product-lines/minepump_spec3_product62.cil.c[1605,1618] [2024-12-02 12:36:56,353 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:36:56,364 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:36:56,372 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-12-02 12:36:56,373 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [58] [2024-12-02 12:36:56,374 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [95] [2024-12-02 12:36:56,374 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [461] [2024-12-02 12:36:56,374 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [570] [2024-12-02 12:36:56,374 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [608] [2024-12-02 12:36:56,374 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [861] [2024-12-02 12:36:56,374 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [929] [2024-12-02 12:36:56,378 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_35751be7-e183-4ce3-8121-e154f8a5bc4f/sv-benchmarks/c/product-lines/minepump_spec3_product62.cil.c[1605,1618] [2024-12-02 12:36:56,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:36:56,441 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:36:56,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:56 WrapperNode [2024-12-02 12:36:56,442 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:36:56,443 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:36:56,443 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:36:56,443 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:36:56,449 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:56" (1/1) ... [2024-12-02 12:36:56,460 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:56" (1/1) ... [2024-12-02 12:36:56,479 INFO L138 Inliner]: procedures = 58, calls = 106, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 229 [2024-12-02 12:36:56,479 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:36:56,480 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:36:56,480 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:36:56,480 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:36:56,489 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:56" (1/1) ... [2024-12-02 12:36:56,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:56" (1/1) ... [2024-12-02 12:36:56,491 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:56" (1/1) ... [2024-12-02 12:36:56,506 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]. [2024-12-02 12:36:56,506 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:56" (1/1) ... [2024-12-02 12:36:56,506 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:56" (1/1) ... [2024-12-02 12:36:56,510 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:56" (1/1) ... [2024-12-02 12:36:56,511 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:56" (1/1) ... [2024-12-02 12:36:56,515 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:56" (1/1) ... [2024-12-02 12:36:56,516 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:56" (1/1) ... [2024-12-02 12:36:56,517 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:56" (1/1) ... [2024-12-02 12:36:56,519 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:36:56,520 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:36:56,520 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:36:56,520 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:36:56,521 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:56" (1/1) ... [2024-12-02 12:36:56,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:36:56,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35751be7-e183-4ce3-8121-e154f8a5bc4f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:36:56,547 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35751be7-e183-4ce3-8121-e154f8a5bc4f/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:36:56,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35751be7-e183-4ce3-8121-e154f8a5bc4f/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:36:56,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:36:56,567 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-12-02 12:36:56,567 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-12-02 12:36:56,567 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-12-02 12:36:56,567 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-12-02 12:36:56,567 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-12-02 12:36:56,567 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-12-02 12:36:56,567 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-12-02 12:36:56,567 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-12-02 12:36:56,568 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-12-02 12:36:56,568 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-12-02 12:36:56,568 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-12-02 12:36:56,568 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-12-02 12:36:56,568 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-12-02 12:36:56,568 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-12-02 12:36:56,568 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-12-02 12:36:56,568 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-12-02 12:36:56,568 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-12-02 12:36:56,568 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-12-02 12:36:56,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 12:36:56,568 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-12-02 12:36:56,568 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-12-02 12:36:56,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:36:56,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:36:56,630 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:36:56,631 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:36:56,890 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-12-02 12:36:56,890 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:36:56,902 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:36:56,902 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 12:36:56,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:36:56 BoogieIcfgContainer [2024-12-02 12:36:56,903 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:36:56,905 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:36:56,905 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:36:56,910 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:36:56,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:36:56" (1/3) ... [2024-12-02 12:36:56,911 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7978545b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:36:56, skipping insertion in model container [2024-12-02 12:36:56,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:56" (2/3) ... [2024-12-02 12:36:56,911 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7978545b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:36:56, skipping insertion in model container [2024-12-02 12:36:56,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:36:56" (3/3) ... [2024-12-02 12:36:56,913 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product62.cil.c [2024-12-02 12:36:56,927 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:36:56,928 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec3_product62.cil.c that has 11 procedures, 109 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-12-02 12:36:56,974 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:36:56,984 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;@40fb2fc4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:36:56,984 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 12:36:56,987 INFO L276 IsEmpty]: Start isEmpty. Operand has 109 states, 79 states have (on average 1.379746835443038) internal successors, (109), 89 states have internal predecessors, (109), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 12:36:56,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-02 12:36:56,993 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:56,994 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:36:56,994 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:56,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:56,998 INFO L85 PathProgramCache]: Analyzing trace with hash 924507222, now seen corresponding path program 1 times [2024-12-02 12:36:57,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:57,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910264957] [2024-12-02 12:36:57,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:57,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:57,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:57,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:36:57,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:57,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910264957] [2024-12-02 12:36:57,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910264957] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:57,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:36:57,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:36:57,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678456721] [2024-12-02 12:36:57,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:57,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:36:57,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:57,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:36:57,223 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:36:57,225 INFO L87 Difference]: Start difference. First operand has 109 states, 79 states have (on average 1.379746835443038) internal successors, (109), 89 states have internal predecessors, (109), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 12:36:57,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:57,275 INFO L93 Difference]: Finished difference Result 198 states and 265 transitions. [2024-12-02 12:36:57,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:36:57,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-12-02 12:36:57,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:57,284 INFO L225 Difference]: With dead ends: 198 [2024-12-02 12:36:57,284 INFO L226 Difference]: Without dead ends: 92 [2024-12-02 12:36:57,287 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 [2024-12-02 12:36:57,289 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 13 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 228 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 [2024-12-02 12:36:57,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 228 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:36:57,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-12-02 12:36:57,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-12-02 12:36:57,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 67 states have (on average 1.328358208955224) internal successors, (89), 76 states have internal predecessors, (89), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 12:36:57,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 119 transitions. [2024-12-02 12:36:57,325 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 119 transitions. Word has length 25 [2024-12-02 12:36:57,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:36:57,326 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 119 transitions. [2024-12-02 12:36:57,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 12:36:57,326 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 119 transitions. [2024-12-02 12:36:57,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-02 12:36:57,328 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:57,328 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:36:57,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 12:36:57,329 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:57,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:57,329 INFO L85 PathProgramCache]: Analyzing trace with hash -303994197, now seen corresponding path program 1 times [2024-12-02 12:36:57,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:57,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326595174] [2024-12-02 12:36:57,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:57,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:57,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:57,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:36:57,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:57,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326595174] [2024-12-02 12:36:57,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326595174] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:57,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:36:57,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:36:57,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976745799] [2024-12-02 12:36:57,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:57,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:36:57,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:57,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:36:57,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:36:57,471 INFO L87 Difference]: Start difference. First operand 92 states and 119 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 12:36:57,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:57,530 INFO L93 Difference]: Finished difference Result 177 states and 232 transitions. [2024-12-02 12:36:57,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:36:57,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2024-12-02 12:36:57,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:57,533 INFO L225 Difference]: With dead ends: 177 [2024-12-02 12:36:57,533 INFO L226 Difference]: Without dead ends: 92 [2024-12-02 12:36:57,534 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:36:57,534 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 113 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:36:57,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 343 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:36:57,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-12-02 12:36:57,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-12-02 12:36:57,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 67 states have (on average 1.3134328358208955) internal successors, (88), 76 states have internal predecessors, (88), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 12:36:57,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 118 transitions. [2024-12-02 12:36:57,549 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 118 transitions. Word has length 30 [2024-12-02 12:36:57,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:36:57,549 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 118 transitions. [2024-12-02 12:36:57,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 12:36:57,550 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 118 transitions. [2024-12-02 12:36:57,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-12-02 12:36:57,551 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:57,551 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:36:57,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 12:36:57,552 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:57,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:57,553 INFO L85 PathProgramCache]: Analyzing trace with hash 220315585, now seen corresponding path program 1 times [2024-12-02 12:36:57,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:57,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049899313] [2024-12-02 12:36:57,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:57,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:57,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:57,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:36:57,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:57,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049899313] [2024-12-02 12:36:57,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049899313] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:57,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:36:57,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:36:57,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370701728] [2024-12-02 12:36:57,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:57,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:36:57,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:57,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:36:57,662 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:36:57,662 INFO L87 Difference]: Start difference. First operand 92 states and 118 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 12:36:57,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:57,952 INFO L93 Difference]: Finished difference Result 268 states and 342 transitions. [2024-12-02 12:36:57,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:36:57,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) Word has length 45 [2024-12-02 12:36:57,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:57,954 INFO L225 Difference]: With dead ends: 268 [2024-12-02 12:36:57,954 INFO L226 Difference]: Without dead ends: 183 [2024-12-02 12:36:57,955 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:36:57,956 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 227 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:36:57,956 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 318 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:36:57,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-12-02 12:36:57,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 177. [2024-12-02 12:36:57,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 131 states have (on average 1.251908396946565) internal successors, (164), 140 states have internal predecessors, (164), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2024-12-02 12:36:57,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 215 transitions. [2024-12-02 12:36:57,983 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 215 transitions. Word has length 45 [2024-12-02 12:36:57,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:36:57,983 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 215 transitions. [2024-12-02 12:36:57,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 12:36:57,984 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 215 transitions. [2024-12-02 12:36:57,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-12-02 12:36:57,985 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:57,985 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:36:57,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 12:36:57,985 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:57,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:57,986 INFO L85 PathProgramCache]: Analyzing trace with hash 936710167, now seen corresponding path program 1 times [2024-12-02 12:36:57,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:57,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882074535] [2024-12-02 12:36:57,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:57,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:58,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:58,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:36:58,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:58,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882074535] [2024-12-02 12:36:58,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882074535] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:58,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:36:58,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:36:58,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486874632] [2024-12-02 12:36:58,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:58,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:36:58,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:58,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:36:58,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:36:58,084 INFO L87 Difference]: Start difference. First operand 177 states and 215 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 12:36:58,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:58,114 INFO L93 Difference]: Finished difference Result 349 states and 434 transitions. [2024-12-02 12:36:58,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:36:58,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 51 [2024-12-02 12:36:58,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:58,117 INFO L225 Difference]: With dead ends: 349 [2024-12-02 12:36:58,117 INFO L226 Difference]: Without dead ends: 179 [2024-12-02 12:36:58,118 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 [2024-12-02 12:36:58,119 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:36:58,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 342 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:36:58,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-12-02 12:36:58,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-12-02 12:36:58,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 133 states have (on average 1.2481203007518797) internal successors, (166), 142 states have internal predecessors, (166), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2024-12-02 12:36:58,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 217 transitions. [2024-12-02 12:36:58,142 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 217 transitions. Word has length 51 [2024-12-02 12:36:58,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:36:58,142 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 217 transitions. [2024-12-02 12:36:58,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 12:36:58,143 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 217 transitions. [2024-12-02 12:36:58,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-12-02 12:36:58,144 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:58,144 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:36:58,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 12:36:58,145 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:58,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:58,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1070723673, now seen corresponding path program 1 times [2024-12-02 12:36:58,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:58,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769430573] [2024-12-02 12:36:58,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:58,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:58,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:58,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:36:58,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:58,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769430573] [2024-12-02 12:36:58,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769430573] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:58,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:36:58,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:36:58,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302203824] [2024-12-02 12:36:58,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:58,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:36:58,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:58,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:36:58,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:36:58,273 INFO L87 Difference]: Start difference. First operand 179 states and 217 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 12:36:58,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:58,352 INFO L93 Difference]: Finished difference Result 448 states and 564 transitions. [2024-12-02 12:36:58,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:36:58,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 51 [2024-12-02 12:36:58,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:58,355 INFO L225 Difference]: With dead ends: 448 [2024-12-02 12:36:58,355 INFO L226 Difference]: Without dead ends: 276 [2024-12-02 12:36:58,356 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:36:58,357 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 53 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:36:58,357 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 437 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:36:58,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-12-02 12:36:58,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2024-12-02 12:36:58,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 205 states have (on average 1.2341463414634146) internal successors, (253), 217 states have internal predecessors, (253), 35 states have call successors, (35), 30 states have call predecessors, (35), 35 states have return successors, (48), 37 states have call predecessors, (48), 35 states have call successors, (48) [2024-12-02 12:36:58,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 336 transitions. [2024-12-02 12:36:58,392 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 336 transitions. Word has length 51 [2024-12-02 12:36:58,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:36:58,392 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 336 transitions. [2024-12-02 12:36:58,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 12:36:58,393 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 336 transitions. [2024-12-02 12:36:58,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-12-02 12:36:58,394 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:58,394 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:36:58,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 12:36:58,395 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:58,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:58,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1454974081, now seen corresponding path program 1 times [2024-12-02 12:36:58,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:58,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655040100] [2024-12-02 12:36:58,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:58,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:58,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:58,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:36:58,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:58,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655040100] [2024-12-02 12:36:58,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655040100] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:58,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:36:58,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:36:58,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959497192] [2024-12-02 12:36:58,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:58,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:36:58,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:58,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:36:58,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:36:58,497 INFO L87 Difference]: Start difference. First operand 276 states and 336 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 12:36:58,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:58,614 INFO L93 Difference]: Finished difference Result 608 states and 767 transitions. [2024-12-02 12:36:58,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:36:58,615 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2024-12-02 12:36:58,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:58,619 INFO L225 Difference]: With dead ends: 608 [2024-12-02 12:36:58,619 INFO L226 Difference]: Without dead ends: 436 [2024-12-02 12:36:58,620 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:36:58,620 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 96 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:36:58,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 521 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:36:58,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-12-02 12:36:58,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 435. [2024-12-02 12:36:58,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 319 states have (on average 1.225705329153605) internal successors, (391), 339 states have internal predecessors, (391), 57 states have call successors, (57), 48 states have call predecessors, (57), 58 states have return successors, (91), 61 states have call predecessors, (91), 57 states have call successors, (91) [2024-12-02 12:36:58,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 539 transitions. [2024-12-02 12:36:58,672 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 539 transitions. Word has length 55 [2024-12-02 12:36:58,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:36:58,673 INFO L471 AbstractCegarLoop]: Abstraction has 435 states and 539 transitions. [2024-12-02 12:36:58,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 12:36:58,673 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 539 transitions. [2024-12-02 12:36:58,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-12-02 12:36:58,674 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:58,674 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:36:58,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 12:36:58,675 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:58,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:58,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1526947973, now seen corresponding path program 1 times [2024-12-02 12:36:58,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:58,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763845919] [2024-12-02 12:36:58,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:58,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:58,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:58,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:36:58,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:58,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763845919] [2024-12-02 12:36:58,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763845919] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:58,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:36:58,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 12:36:58,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375756915] [2024-12-02 12:36:58,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:58,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:36:58,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:58,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:36:58,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:36:58,785 INFO L87 Difference]: Start difference. First operand 435 states and 539 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 12:36:58,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:58,862 INFO L93 Difference]: Finished difference Result 772 states and 968 transitions. [2024-12-02 12:36:58,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:36:58,862 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2024-12-02 12:36:58,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:58,866 INFO L225 Difference]: With dead ends: 772 [2024-12-02 12:36:58,866 INFO L226 Difference]: Without dead ends: 441 [2024-12-02 12:36:58,867 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:36:58,868 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:36:58,868 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 682 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:36:58,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-12-02 12:36:58,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2024-12-02 12:36:58,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 325 states have (on average 1.2215384615384615) internal successors, (397), 345 states have internal predecessors, (397), 57 states have call successors, (57), 48 states have call predecessors, (57), 58 states have return successors, (91), 61 states have call predecessors, (91), 57 states have call successors, (91) [2024-12-02 12:36:58,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 545 transitions. [2024-12-02 12:36:58,918 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 545 transitions. Word has length 55 [2024-12-02 12:36:58,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:36:58,918 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 545 transitions. [2024-12-02 12:36:58,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 12:36:58,919 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 545 transitions. [2024-12-02 12:36:58,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-12-02 12:36:58,920 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:58,920 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:36:58,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 12:36:58,920 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:58,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:58,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1392934467, now seen corresponding path program 1 times [2024-12-02 12:36:58,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:58,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805309369] [2024-12-02 12:36:58,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:58,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:58,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:58,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:36:58,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:58,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805309369] [2024-12-02 12:36:58,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805309369] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:58,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:36:58,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:36:58,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204260791] [2024-12-02 12:36:58,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:58,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:36:58,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:58,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:36:58,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:36:58,986 INFO L87 Difference]: Start difference. First operand 441 states and 545 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 12:36:59,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:59,022 INFO L93 Difference]: Finished difference Result 772 states and 973 transitions. [2024-12-02 12:36:59,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:36:59,023 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2024-12-02 12:36:59,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:59,025 INFO L225 Difference]: With dead ends: 772 [2024-12-02 12:36:59,025 INFO L226 Difference]: Without dead ends: 435 [2024-12-02 12:36:59,026 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 [2024-12-02 12:36:59,026 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:36:59,027 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 343 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:36:59,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2024-12-02 12:36:59,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 435. [2024-12-02 12:36:59,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 321 states have (on average 1.2149532710280373) internal successors, (390), 340 states have internal predecessors, (390), 56 states have call successors, (56), 47 states have call predecessors, (56), 57 states have return successors, (90), 60 states have call predecessors, (90), 56 states have call successors, (90) [2024-12-02 12:36:59,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 536 transitions. [2024-12-02 12:36:59,055 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 536 transitions. Word has length 55 [2024-12-02 12:36:59,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:36:59,055 INFO L471 AbstractCegarLoop]: Abstraction has 435 states and 536 transitions. [2024-12-02 12:36:59,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 12:36:59,056 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 536 transitions. [2024-12-02 12:36:59,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-12-02 12:36:59,057 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:59,057 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, 1, 1, 1, 1] [2024-12-02 12:36:59,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 12:36:59,058 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:59,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:59,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1805041994, now seen corresponding path program 1 times [2024-12-02 12:36:59,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:59,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770289337] [2024-12-02 12:36:59,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:59,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:59,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:59,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 12:36:59,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:59,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770289337] [2024-12-02 12:36:59,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770289337] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:36:59,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147047715] [2024-12-02 12:36:59,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:59,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:36:59,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35751be7-e183-4ce3-8121-e154f8a5bc4f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:36:59,254 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35751be7-e183-4ce3-8121-e154f8a5bc4f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:36:59,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35751be7-e183-4ce3-8121-e154f8a5bc4f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 12:36:59,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:59,336 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 12:36:59,342 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:36:59,534 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:36:59,534 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:36:59,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2147047715] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:36:59,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:36:59,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-12-02 12:36:59,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679645301] [2024-12-02 12:36:59,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:36:59,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:36:59,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:36:59,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:36:59,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-12-02 12:36:59,536 INFO L87 Difference]: Start difference. First operand 435 states and 536 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 12:36:59,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:36:59,782 INFO L93 Difference]: Finished difference Result 1272 states and 1598 transitions. [2024-12-02 12:36:59,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:36:59,783 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 64 [2024-12-02 12:36:59,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:36:59,789 INFO L225 Difference]: With dead ends: 1272 [2024-12-02 12:36:59,789 INFO L226 Difference]: Without dead ends: 844 [2024-12-02 12:36:59,791 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-12-02 12:36:59,791 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 68 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:36:59,792 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 625 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:36:59,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2024-12-02 12:36:59,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 842. [2024-12-02 12:36:59,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 619 states have (on average 1.2035541195476576) internal successors, (745), 653 states have internal predecessors, (745), 111 states have call successors, (111), 94 states have call predecessors, (111), 111 states have return successors, (181), 117 states have call predecessors, (181), 111 states have call successors, (181) [2024-12-02 12:36:59,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1037 transitions. [2024-12-02 12:36:59,894 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1037 transitions. Word has length 64 [2024-12-02 12:36:59,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:36:59,895 INFO L471 AbstractCegarLoop]: Abstraction has 842 states and 1037 transitions. [2024-12-02 12:36:59,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 12:36:59,895 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1037 transitions. [2024-12-02 12:36:59,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-02 12:36:59,897 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:59,897 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, 1, 1, 1, 1, 1] [2024-12-02 12:36:59,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35751be7-e183-4ce3-8121-e154f8a5bc4f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-12-02 12:37:00,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35751be7-e183-4ce3-8121-e154f8a5bc4f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:37:00,098 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:37:00,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:37:00,098 INFO L85 PathProgramCache]: Analyzing trace with hash 732411660, now seen corresponding path program 1 times [2024-12-02 12:37:00,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:37:00,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634128093] [2024-12-02 12:37:00,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:37:00,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:37:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:37:00,204 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 12:37:00,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:37:00,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634128093] [2024-12-02 12:37:00,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634128093] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:37:00,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:37:00,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:37:00,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783208255] [2024-12-02 12:37:00,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:37:00,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:37:00,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:37:00,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:37:00,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:37:00,206 INFO L87 Difference]: Start difference. First operand 842 states and 1037 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 12:37:00,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:37:00,333 INFO L93 Difference]: Finished difference Result 1677 states and 2067 transitions. [2024-12-02 12:37:00,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:37:00,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 65 [2024-12-02 12:37:00,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:37:00,340 INFO L225 Difference]: With dead ends: 1677 [2024-12-02 12:37:00,340 INFO L226 Difference]: Without dead ends: 842 [2024-12-02 12:37:00,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:37:00,343 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 71 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:37:00,343 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 539 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:37:00,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2024-12-02 12:37:00,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 818. [2024-12-02 12:37:00,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 601 states have (on average 1.1813643926788686) internal successors, (710), 633 states have internal predecessors, (710), 107 states have call successors, (107), 90 states have call predecessors, (107), 109 states have return successors, (155), 113 states have call predecessors, (155), 107 states have call successors, (155) [2024-12-02 12:37:00,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 972 transitions. [2024-12-02 12:37:00,433 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 972 transitions. Word has length 65 [2024-12-02 12:37:00,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:37:00,433 INFO L471 AbstractCegarLoop]: Abstraction has 818 states and 972 transitions. [2024-12-02 12:37:00,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 12:37:00,433 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 972 transitions. [2024-12-02 12:37:00,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-12-02 12:37:00,436 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:37:00,436 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:37:00,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 12:37:00,436 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:37:00,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:37:00,436 INFO L85 PathProgramCache]: Analyzing trace with hash -8698158, now seen corresponding path program 1 times [2024-12-02 12:37:00,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:37:00,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241665308] [2024-12-02 12:37:00,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:37:00,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:37:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:37:00,581 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 12:37:00,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:37:00,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241665308] [2024-12-02 12:37:00,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241665308] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:37:00,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:37:00,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 12:37:00,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969150853] [2024-12-02 12:37:00,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:37:00,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 12:37:00,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:37:00,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 12:37:00,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:37:00,582 INFO L87 Difference]: Start difference. First operand 818 states and 972 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 12:37:00,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:37:00,764 INFO L93 Difference]: Finished difference Result 1601 states and 1917 transitions. [2024-12-02 12:37:00,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 12:37:00,765 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2024-12-02 12:37:00,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:37:00,770 INFO L225 Difference]: With dead ends: 1601 [2024-12-02 12:37:00,770 INFO L226 Difference]: Without dead ends: 790 [2024-12-02 12:37:00,772 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-12-02 12:37:00,773 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 160 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 1322 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:37:00,773 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 1322 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:37:00,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2024-12-02 12:37:00,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2024-12-02 12:37:00,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 573 states have (on average 1.1535776614310647) internal successors, (661), 605 states have internal predecessors, (661), 107 states have call successors, (107), 90 states have call predecessors, (107), 109 states have return successors, (150), 113 states have call predecessors, (150), 107 states have call successors, (150) [2024-12-02 12:37:00,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 918 transitions. [2024-12-02 12:37:00,838 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 918 transitions. Word has length 68 [2024-12-02 12:37:00,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:37:00,838 INFO L471 AbstractCegarLoop]: Abstraction has 790 states and 918 transitions. [2024-12-02 12:37:00,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 12:37:00,838 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 918 transitions. [2024-12-02 12:37:00,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 12:37:00,842 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:37:00,842 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 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] [2024-12-02 12:37:00,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 12:37:00,842 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:37:00,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:37:00,842 INFO L85 PathProgramCache]: Analyzing trace with hash -403187470, now seen corresponding path program 1 times [2024-12-02 12:37:00,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:37:00,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263242564] [2024-12-02 12:37:00,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:37:00,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:37:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:37:00,928 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 12:37:00,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:37:00,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263242564] [2024-12-02 12:37:00,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263242564] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:37:00,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:37:00,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:37:00,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271483530] [2024-12-02 12:37:00,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:37:00,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:37:00,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:37:00,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:37:00,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:37:00,930 INFO L87 Difference]: Start difference. First operand 790 states and 918 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 12:37:00,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:37:00,992 INFO L93 Difference]: Finished difference Result 1484 states and 1743 transitions. [2024-12-02 12:37:00,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:37:00,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 101 [2024-12-02 12:37:00,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:37:00,997 INFO L225 Difference]: With dead ends: 1484 [2024-12-02 12:37:00,997 INFO L226 Difference]: Without dead ends: 701 [2024-12-02 12:37:00,999 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 [2024-12-02 12:37:01,000 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 [2024-12-02 12:37:01,000 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] [2024-12-02 12:37:01,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2024-12-02 12:37:01,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 679. [2024-12-02 12:37:01,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 492 states have (on average 1.1422764227642277) internal successors, (562), 520 states have internal predecessors, (562), 93 states have call successors, (93), 78 states have call predecessors, (93), 93 states have return successors, (118), 96 states have call predecessors, (118), 93 states have call successors, (118) [2024-12-02 12:37:01,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 773 transitions. [2024-12-02 12:37:01,049 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 773 transitions. Word has length 101 [2024-12-02 12:37:01,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:37:01,049 INFO L471 AbstractCegarLoop]: Abstraction has 679 states and 773 transitions. [2024-12-02 12:37:01,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 12:37:01,049 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 773 transitions. [2024-12-02 12:37:01,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-12-02 12:37:01,051 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:37:01,051 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 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] [2024-12-02 12:37:01,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 12:37:01,052 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:37:01,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:37:01,052 INFO L85 PathProgramCache]: Analyzing trace with hash -365479532, now seen corresponding path program 1 times [2024-12-02 12:37:01,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:37:01,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312397699] [2024-12-02 12:37:01,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:37:01,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:37:01,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:37:01,314 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-12-02 12:37:01,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:37:01,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312397699] [2024-12-02 12:37:01,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312397699] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:37:01,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5735611] [2024-12-02 12:37:01,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:37:01,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:37:01,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35751be7-e183-4ce3-8121-e154f8a5bc4f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:37:01,316 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35751be7-e183-4ce3-8121-e154f8a5bc4f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:37:01,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35751be7-e183-4ce3-8121-e154f8a5bc4f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 12:37:01,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:37:01,414 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 12:37:01,418 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:37:01,565 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 12:37:01,566 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:37:01,858 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-12-02 12:37:01,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5735611] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:37:01,858 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:37:01,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 9] total 15 [2024-12-02 12:37:01,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996507317] [2024-12-02 12:37:01,858 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:37:01,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 12:37:01,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:37:01,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 12:37:01,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-12-02 12:37:01,860 INFO L87 Difference]: Start difference. First operand 679 states and 773 transitions. Second operand has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 13 states have internal predecessors, (107), 7 states have call successors, (23), 8 states have call predecessors, (23), 8 states have return successors, (22), 6 states have call predecessors, (22), 7 states have call successors, (22) [2024-12-02 12:37:02,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:37:02,441 INFO L93 Difference]: Finished difference Result 1281 states and 1519 transitions. [2024-12-02 12:37:02,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 12:37:02,441 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 13 states have internal predecessors, (107), 7 states have call successors, (23), 8 states have call predecessors, (23), 8 states have return successors, (22), 6 states have call predecessors, (22), 7 states have call successors, (22) Word has length 105 [2024-12-02 12:37:02,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:37:02,443 INFO L225 Difference]: With dead ends: 1281 [2024-12-02 12:37:02,443 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 12:37:02,444 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 203 SyntacticMatches, 7 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=231, Invalid=419, Unknown=0, NotChecked=0, Total=650 [2024-12-02 12:37:02,445 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 769 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:37:02,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 287 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 12:37:02,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 12:37:02,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 12:37:02,446 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) [2024-12-02 12:37:02,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 12:37:02,448 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 105 [2024-12-02 12:37:02,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:37:02,448 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 12:37:02,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 13 states have internal predecessors, (107), 7 states have call successors, (23), 8 states have call predecessors, (23), 8 states have return successors, (22), 6 states have call predecessors, (22), 7 states have call successors, (22) [2024-12-02 12:37:02,448 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 12:37:02,448 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 12:37:02,450 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 12:37:02,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35751be7-e183-4ce3-8121-e154f8a5bc4f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 12:37:02,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35751be7-e183-4ce3-8121-e154f8a5bc4f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:37:02,653 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:37:02,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 12:37:08,093 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 12:37:08,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:37:08 BoogieIcfgContainer [2024-12-02 12:37:08,104 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 12:37:08,104 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 12:37:08,104 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 12:37:08,105 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 12:37:08,105 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:36:56" (3/4) ... [2024-12-02 12:37:08,107 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 12:37:08,111 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-12-02 12:37:08,111 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-12-02 12:37:08,111 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-12-02 12:37:08,111 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-12-02 12:37:08,111 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-12-02 12:37:08,111 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-12-02 12:37:08,111 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-12-02 12:37:08,111 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-12-02 12:37:08,111 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-12-02 12:37:08,111 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-12-02 12:37:08,116 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-12-02 12:37:08,117 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-12-02 12:37:08,117 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-12-02 12:37:08,117 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 12:37:08,117 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 12:37:08,192 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35751be7-e183-4ce3-8121-e154f8a5bc4f/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 12:37:08,192 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35751be7-e183-4ce3-8121-e154f8a5bc4f/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 12:37:08,192 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 12:37:08,193 INFO L158 Benchmark]: Toolchain (without parser) took 12120.43ms. Allocated memory was 142.6MB in the beginning and 302.0MB in the end (delta: 159.4MB). Free memory was 116.3MB in the beginning and 164.6MB in the end (delta: -48.3MB). Peak memory consumption was 109.2MB. Max. memory is 16.1GB. [2024-12-02 12:37:08,193 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory was 83.4MB in the beginning and 83.2MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:37:08,193 INFO L158 Benchmark]: CACSL2BoogieTranslator took 368.35ms. Allocated memory is still 142.6MB. Free memory was 116.0MB in the beginning and 97.0MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 12:37:08,194 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.85ms. Allocated memory is still 142.6MB. Free memory was 97.0MB in the beginning and 95.0MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 12:37:08,194 INFO L158 Benchmark]: Boogie Preprocessor took 39.74ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 93.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:37:08,194 INFO L158 Benchmark]: RCFGBuilder took 382.44ms. Allocated memory is still 142.6MB. Free memory was 93.1MB in the beginning and 74.7MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 12:37:08,194 INFO L158 Benchmark]: TraceAbstraction took 11198.92ms. Allocated memory was 142.6MB in the beginning and 302.0MB in the end (delta: 159.4MB). Free memory was 74.1MB in the beginning and 172.7MB in the end (delta: -98.6MB). Peak memory consumption was 127.7MB. Max. memory is 16.1GB. [2024-12-02 12:37:08,195 INFO L158 Benchmark]: Witness Printer took 87.90ms. Allocated memory is still 302.0MB. Free memory was 172.7MB in the beginning and 164.6MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 12:37:08,196 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory was 83.4MB in the beginning and 83.2MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 368.35ms. Allocated memory is still 142.6MB. Free memory was 116.0MB in the beginning and 97.0MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.85ms. Allocated memory is still 142.6MB. Free memory was 97.0MB in the beginning and 95.0MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.74ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 93.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 382.44ms. Allocated memory is still 142.6MB. Free memory was 93.1MB in the beginning and 74.7MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 11198.92ms. Allocated memory was 142.6MB in the beginning and 302.0MB in the end (delta: 159.4MB). Free memory was 74.1MB in the beginning and 172.7MB in the end (delta: -98.6MB). Peak memory consumption was 127.7MB. Max. memory is 16.1GB. * Witness Printer took 87.90ms. Allocated memory is still 302.0MB. Free memory was 172.7MB in the beginning and 164.6MB 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,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [58] - GenericResultAtLocation [Line: 95]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [95] - GenericResultAtLocation [Line: 461]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [461] - GenericResultAtLocation [Line: 570]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [570] - GenericResultAtLocation [Line: 608]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [608] - GenericResultAtLocation [Line: 861]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [861] - GenericResultAtLocation [Line: 929]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [929] * 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: 54]: 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 11 procedures, 109 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.7s, OverallIterations: 13, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1582 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1570 mSDsluCounter, 6441 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4821 mSDsCounter, 394 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1005 IncrementalHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 394 mSolverCounterUnsat, 1620 mSDtfsCounter, 1005 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 387 GetRequests, 295 SyntacticMatches, 7 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=842occurred in iteration=9, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 55 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 939 NumberOfCodeBlocks, 939 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1028 ConstructedInterpolants, 0 QuantifiedInterpolants, 1932 SizeOfPredicates, 2 NumberOfNonLiveVariables, 580 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 16 InterpolantComputations, 12 PerfectInterpolantSequences, 145/172 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: 941]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 872]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 873]: Loop Invariant Derived loop invariant: ((((((((methaneLevelCritical == 1) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (0 != systemActive)) && (pumpRunning == 1)) || (((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (waterLevel <= 1)) && (splverifierCounter == 0)) && (0 != systemActive))) || (((((methaneLevelCritical == 0) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (0 != systemActive)) && (pumpRunning == 1))) || (((((pumpRunning == 0) && (methaneLevelCritical == 1)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (0 != systemActive))) RESULT: Ultimate proved your program to be correct! [2024-12-02 12:37:08,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35751be7-e183-4ce3-8121-e154f8a5bc4f/bin/uautomizer-verify-84ZbGMXZE1/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