./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product45.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_920935b2-4590-4d46-8b55-b9e807a980a8/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920935b2-4590-4d46-8b55-b9e807a980a8/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_920935b2-4590-4d46-8b55-b9e807a980a8/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920935b2-4590-4d46-8b55-b9e807a980a8/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920935b2-4590-4d46-8b55-b9e807a980a8/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_920935b2-4590-4d46-8b55-b9e807a980a8/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 4c4adbf609ddd472cb6a462753c6f5cc9af64c97af02da4060f4102700285790 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:17:23,234 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:17:23,287 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920935b2-4590-4d46-8b55-b9e807a980a8/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 06:17:23,292 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:17:23,292 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:17:23,313 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:17:23,314 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:17:23,314 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:17:23,314 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:17:23,314 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:17:23,314 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:17:23,314 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:17:23,315 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:17:23,315 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:17:23,315 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:17:23,315 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:17:23,315 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 06:17:23,315 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 06:17:23,315 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:17:23,315 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 06:17:23,316 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:17:23,316 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 06:17:23,316 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:17:23,316 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 06:17:23,316 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 06:17:23,316 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:17:23,316 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:17:23,316 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:17:23,316 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:17:23,316 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:17:23,316 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:17:23,316 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:17:23,317 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:17:23,317 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:17:23,317 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:17:23,317 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:17:23,317 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:17:23,317 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:17:23,317 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:17:23,317 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:17:23,317 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 06:17:23,317 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 06:17:23,317 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 06:17:23,317 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 06:17:23,317 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:17:23,318 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:17:23,318 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:17:23,318 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:17:23,318 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_920935b2-4590-4d46-8b55-b9e807a980a8/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 -> 4c4adbf609ddd472cb6a462753c6f5cc9af64c97af02da4060f4102700285790 [2024-12-02 06:17:23,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:17:23,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:17:23,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:17:23,527 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:17:23,527 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:17:23,528 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920935b2-4590-4d46-8b55-b9e807a980a8/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c [2024-12-02 06:17:26,175 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920935b2-4590-4d46-8b55-b9e807a980a8/bin/uautomizer-verify-84ZbGMXZE1/data/9aefbb98c/02f93b53e3554ae392d0d1e911914070/FLAG683d57c2a [2024-12-02 06:17:26,392 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:17:26,393 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920935b2-4590-4d46-8b55-b9e807a980a8/sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c [2024-12-02 06:17:26,404 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920935b2-4590-4d46-8b55-b9e807a980a8/bin/uautomizer-verify-84ZbGMXZE1/data/9aefbb98c/02f93b53e3554ae392d0d1e911914070/FLAG683d57c2a [2024-12-02 06:17:26,420 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920935b2-4590-4d46-8b55-b9e807a980a8/bin/uautomizer-verify-84ZbGMXZE1/data/9aefbb98c/02f93b53e3554ae392d0d1e911914070 [2024-12-02 06:17:26,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:17:26,424 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:17:26,425 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:17:26,426 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:17:26,430 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:17:26,431 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:17:26" (1/1) ... [2024-12-02 06:17:26,432 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@447c85de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:17:26, skipping insertion in model container [2024-12-02 06:17:26,432 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:17:26" (1/1) ... [2024-12-02 06:17:26,460 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:17:26,642 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_920935b2-4590-4d46-8b55-b9e807a980a8/sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c[8617,8630] [2024-12-02 06:17:26,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:17:26,700 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:17:26,706 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [49] [2024-12-02 06:17:26,707 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] [2024-12-02 06:17:26,708 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [186] [2024-12-02 06:17:26,708 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [288] [2024-12-02 06:17:26,708 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [485] [2024-12-02 06:17:26,708 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [550] [2024-12-02 06:17:26,708 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [585] [2024-12-02 06:17:26,708 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [594] [2024-12-02 06:17:26,731 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_920935b2-4590-4d46-8b55-b9e807a980a8/sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c[8617,8630] [2024-12-02 06:17:26,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:17:26,776 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:17:26,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:17:26 WrapperNode [2024-12-02 06:17:26,777 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:17:26,778 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:17:26,778 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:17:26,778 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:17:26,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:17:26" (1/1) ... [2024-12-02 06:17:26,794 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:17:26" (1/1) ... [2024-12-02 06:17:26,808 INFO L138 Inliner]: procedures = 54, calls = 100, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 196 [2024-12-02 06:17:26,809 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:17:26,809 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:17:26,809 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:17:26,810 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:17:26,818 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:17:26" (1/1) ... [2024-12-02 06:17:26,818 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:17:26" (1/1) ... [2024-12-02 06:17:26,820 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:17:26" (1/1) ... [2024-12-02 06:17:26,833 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 06:17:26,833 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:17:26" (1/1) ... [2024-12-02 06:17:26,833 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:17:26" (1/1) ... [2024-12-02 06:17:26,838 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:17:26" (1/1) ... [2024-12-02 06:17:26,838 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:17:26" (1/1) ... [2024-12-02 06:17:26,843 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:17:26" (1/1) ... [2024-12-02 06:17:26,844 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:17:26" (1/1) ... [2024-12-02 06:17:26,845 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:17:26" (1/1) ... [2024-12-02 06:17:26,846 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:17:26,847 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:17:26,847 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:17:26,847 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:17:26,848 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:17:26" (1/1) ... [2024-12-02 06:17:26,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:17:26,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920935b2-4590-4d46-8b55-b9e807a980a8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:17:26,873 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920935b2-4590-4d46-8b55-b9e807a980a8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:17:26,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920935b2-4590-4d46-8b55-b9e807a980a8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:17:26,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:17:26,894 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-12-02 06:17:26,894 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-12-02 06:17:26,894 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-12-02 06:17:26,894 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-12-02 06:17:26,894 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-12-02 06:17:26,894 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-12-02 06:17:26,894 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-12-02 06:17:26,894 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-12-02 06:17:26,894 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-12-02 06:17:26,894 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-12-02 06:17:26,895 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-12-02 06:17:26,895 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-12-02 06:17:26,895 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-12-02 06:17:26,895 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-12-02 06:17:26,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 06:17:26,895 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-12-02 06:17:26,895 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-12-02 06:17:26,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:17:26,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:17:26,956 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:17:26,958 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:17:27,181 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-12-02 06:17:27,181 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:17:27,192 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:17:27,192 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 06:17:27,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:17:27 BoogieIcfgContainer [2024-12-02 06:17:27,192 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:17:27,195 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 06:17:27,195 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 06:17:27,200 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 06:17:27,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:17:26" (1/3) ... [2024-12-02 06:17:27,200 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28f58361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:17:27, skipping insertion in model container [2024-12-02 06:17:27,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:17:26" (2/3) ... [2024-12-02 06:17:27,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28f58361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:17:27, skipping insertion in model container [2024-12-02 06:17:27,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:17:27" (3/3) ... [2024-12-02 06:17:27,202 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product45.cil.c [2024-12-02 06:17:27,217 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 06:17:27,218 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec3_product45.cil.c that has 9 procedures, 93 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-12-02 06:17:27,265 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:17:27,273 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;@5b46de64, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:17:27,273 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 06:17:27,277 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 69 states have (on average 1.391304347826087) internal successors, (96), 77 states have internal predecessors, (96), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 06:17:27,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-02 06:17:27,285 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:17:27,285 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 06:17:27,286 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:17:27,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:17:27,291 INFO L85 PathProgramCache]: Analyzing trace with hash 2135442729, now seen corresponding path program 1 times [2024-12-02 06:17:27,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:17:27,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334907583] [2024-12-02 06:17:27,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:17:27,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:17:27,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:17:27,505 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 06:17:27,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:17:27,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334907583] [2024-12-02 06:17:27,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334907583] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:17:27,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:17:27,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:17:27,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366074169] [2024-12-02 06:17:27,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:17:27,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:17:27,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:17:27,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:17:27,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:17:27,527 INFO L87 Difference]: Start difference. First operand has 93 states, 69 states have (on average 1.391304347826087) internal successors, (96), 77 states have internal predecessors, (96), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) 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 06:17:27,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:17:27,557 INFO L93 Difference]: Finished difference Result 166 states and 223 transitions. [2024-12-02 06:17:27,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:17:27,559 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 06:17:27,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:17:27,565 INFO L225 Difference]: With dead ends: 166 [2024-12-02 06:17:27,566 INFO L226 Difference]: Without dead ends: 76 [2024-12-02 06:17:27,569 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 06:17:27,571 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 12 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 187 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 06:17:27,572 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 187 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:17:27,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-12-02 06:17:27,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-12-02 06:17:27,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 57 states have (on average 1.3333333333333333) internal successors, (76), 64 states have internal predecessors, (76), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 06:17:27,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 98 transitions. [2024-12-02 06:17:27,603 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 98 transitions. Word has length 25 [2024-12-02 06:17:27,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:17:27,603 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 98 transitions. [2024-12-02 06:17:27,603 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 06:17:27,604 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 98 transitions. [2024-12-02 06:17:27,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-12-02 06:17:27,605 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:17:27,605 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] [2024-12-02 06:17:27,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 06:17:27,606 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:17:27,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:17:27,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1923599591, now seen corresponding path program 1 times [2024-12-02 06:17:27,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:17:27,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259999122] [2024-12-02 06:17:27,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:17:27,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:17:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:17:27,745 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 06:17:27,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:17:27,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259999122] [2024-12-02 06:17:27,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259999122] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:17:27,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:17:27,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:17:27,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314140558] [2024-12-02 06:17:27,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:17:27,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:17:27,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:17:27,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:17:27,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:17:27,747 INFO L87 Difference]: Start difference. First operand 76 states and 98 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 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 06:17:27,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:17:27,869 INFO L93 Difference]: Finished difference Result 145 states and 190 transitions. [2024-12-02 06:17:27,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:17:27,870 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 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 29 [2024-12-02 06:17:27,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:17:27,871 INFO L225 Difference]: With dead ends: 145 [2024-12-02 06:17:27,871 INFO L226 Difference]: Without dead ends: 76 [2024-12-02 06:17:27,872 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:17:27,873 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 156 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:17:27,873 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 234 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:17:27,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-12-02 06:17:27,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-12-02 06:17:27,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 64 states have internal predecessors, (75), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 06:17:27,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 97 transitions. [2024-12-02 06:17:27,884 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 97 transitions. Word has length 29 [2024-12-02 06:17:27,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:17:27,884 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 97 transitions. [2024-12-02 06:17:27,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 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 06:17:27,885 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 97 transitions. [2024-12-02 06:17:27,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-12-02 06:17:27,886 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:17:27,886 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] [2024-12-02 06:17:27,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 06:17:27,886 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:17:27,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:17:27,887 INFO L85 PathProgramCache]: Analyzing trace with hash -902202737, now seen corresponding path program 1 times [2024-12-02 06:17:27,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:17:27,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401857962] [2024-12-02 06:17:27,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:17:27,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:17:27,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:17:27,969 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 06:17:27,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:17:27,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401857962] [2024-12-02 06:17:27,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401857962] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:17:27,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:17:27,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:17:27,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301724730] [2024-12-02 06:17:27,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:17:27,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:17:27,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:17:27,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:17:27,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:17:27,971 INFO L87 Difference]: Start difference. First operand 76 states and 97 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 06:17:28,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:17:28,201 INFO L93 Difference]: Finished difference Result 227 states and 289 transitions. [2024-12-02 06:17:28,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:17:28,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 39 [2024-12-02 06:17:28,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:17:28,203 INFO L225 Difference]: With dead ends: 227 [2024-12-02 06:17:28,203 INFO L226 Difference]: Without dead ends: 158 [2024-12-02 06:17:28,203 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 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 06:17:28,204 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 201 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:17:28,204 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 281 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:17:28,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-12-02 06:17:28,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 152. [2024-12-02 06:17:28,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 115 states have (on average 1.2695652173913043) internal successors, (146), 123 states have internal predecessors, (146), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2024-12-02 06:17:28,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 187 transitions. [2024-12-02 06:17:28,225 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 187 transitions. Word has length 39 [2024-12-02 06:17:28,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:17:28,226 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 187 transitions. [2024-12-02 06:17:28,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 06:17:28,226 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 187 transitions. [2024-12-02 06:17:28,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-12-02 06:17:28,227 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:17:28,227 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 06:17:28,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 06:17:28,227 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:17:28,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:17:28,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1556782117, now seen corresponding path program 1 times [2024-12-02 06:17:28,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:17:28,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702170744] [2024-12-02 06:17:28,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:17:28,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:17:28,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:17:28,362 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 06:17:28,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:17:28,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702170744] [2024-12-02 06:17:28,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702170744] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:17:28,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:17:28,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:17:28,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135299009] [2024-12-02 06:17:28,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:17:28,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:17:28,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:17:28,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:17:28,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:17:28,364 INFO L87 Difference]: Start difference. First operand 152 states and 187 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 06:17:28,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:17:28,490 INFO L93 Difference]: Finished difference Result 536 states and 695 transitions. [2024-12-02 06:17:28,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:17:28,491 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 45 [2024-12-02 06:17:28,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:17:28,495 INFO L225 Difference]: With dead ends: 536 [2024-12-02 06:17:28,495 INFO L226 Difference]: Without dead ends: 391 [2024-12-02 06:17:28,496 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:17:28,497 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 144 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:17:28,497 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 298 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:17:28,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-12-02 06:17:28,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 382. [2024-12-02 06:17:28,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 289 states have (on average 1.273356401384083) internal successors, (368), 307 states have internal predecessors, (368), 46 states have call successors, (46), 39 states have call predecessors, (46), 46 states have return successors, (73), 49 states have call predecessors, (73), 46 states have call successors, (73) [2024-12-02 06:17:28,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 487 transitions. [2024-12-02 06:17:28,548 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 487 transitions. Word has length 45 [2024-12-02 06:17:28,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:17:28,548 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 487 transitions. [2024-12-02 06:17:28,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 06:17:28,548 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 487 transitions. [2024-12-02 06:17:28,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-12-02 06:17:28,550 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:17:28,550 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 06:17:28,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 06:17:28,550 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:17:28,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:17:28,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1690795623, now seen corresponding path program 1 times [2024-12-02 06:17:28,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:17:28,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103595994] [2024-12-02 06:17:28,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:17:28,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:17:28,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:17:28,638 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 06:17:28,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:17:28,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103595994] [2024-12-02 06:17:28,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103595994] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:17:28,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:17:28,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:17:28,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666165044] [2024-12-02 06:17:28,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:17:28,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:17:28,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:17:28,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:17:28,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:17:28,640 INFO L87 Difference]: Start difference. First operand 382 states and 487 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 06:17:28,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:17:28,721 INFO L93 Difference]: Finished difference Result 753 states and 965 transitions. [2024-12-02 06:17:28,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:17:28,722 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2024-12-02 06:17:28,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:17:28,725 INFO L225 Difference]: With dead ends: 753 [2024-12-02 06:17:28,726 INFO L226 Difference]: Without dead ends: 378 [2024-12-02 06:17:28,727 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 06:17:28,728 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 49 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:17:28,728 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 354 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:17:28,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-12-02 06:17:28,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2024-12-02 06:17:28,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 285 states have (on average 1.263157894736842) internal successors, (360), 303 states have internal predecessors, (360), 46 states have call successors, (46), 39 states have call predecessors, (46), 46 states have return successors, (73), 49 states have call predecessors, (73), 46 states have call successors, (73) [2024-12-02 06:17:28,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 479 transitions. [2024-12-02 06:17:28,784 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 479 transitions. Word has length 45 [2024-12-02 06:17:28,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:17:28,785 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 479 transitions. [2024-12-02 06:17:28,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 06:17:28,785 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 479 transitions. [2024-12-02 06:17:28,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-12-02 06:17:28,786 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:17:28,787 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] [2024-12-02 06:17:28,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 06:17:28,787 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:17:28,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:17:28,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1550364427, now seen corresponding path program 1 times [2024-12-02 06:17:28,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:17:28,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689655904] [2024-12-02 06:17:28,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:17:28,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:17:28,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:17:28,863 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 06:17:28,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:17:28,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689655904] [2024-12-02 06:17:28,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689655904] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:17:28,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:17:28,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:17:28,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399130967] [2024-12-02 06:17:28,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:17:28,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:17:28,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:17:28,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:17:28,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:17:28,864 INFO L87 Difference]: Start difference. First operand 378 states and 479 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 06:17:28,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:17:28,922 INFO L93 Difference]: Finished difference Result 663 states and 855 transitions. [2024-12-02 06:17:28,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:17:28,923 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 49 [2024-12-02 06:17:28,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:17:28,926 INFO L225 Difference]: With dead ends: 663 [2024-12-02 06:17:28,926 INFO L226 Difference]: Without dead ends: 380 [2024-12-02 06:17:28,928 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 06:17:28,928 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 0 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:17:28,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 282 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:17:28,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2024-12-02 06:17:28,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 380. [2024-12-02 06:17:28,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 287 states have (on average 1.2613240418118468) internal successors, (362), 305 states have internal predecessors, (362), 46 states have call successors, (46), 39 states have call predecessors, (46), 46 states have return successors, (73), 49 states have call predecessors, (73), 46 states have call successors, (73) [2024-12-02 06:17:28,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 481 transitions. [2024-12-02 06:17:28,976 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 481 transitions. Word has length 49 [2024-12-02 06:17:28,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:17:28,977 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 481 transitions. [2024-12-02 06:17:28,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 06:17:28,977 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 481 transitions. [2024-12-02 06:17:28,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-12-02 06:17:28,978 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:17:28,978 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] [2024-12-02 06:17:28,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 06:17:28,979 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:17:28,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:17:28,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1769219145, now seen corresponding path program 1 times [2024-12-02 06:17:28,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:17:28,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742571091] [2024-12-02 06:17:28,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:17:28,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:17:28,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:17:29,094 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 06:17:29,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:17:29,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742571091] [2024-12-02 06:17:29,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742571091] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:17:29,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:17:29,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 06:17:29,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511220466] [2024-12-02 06:17:29,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:17:29,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:17:29,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:17:29,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:17:29,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:17:29,096 INFO L87 Difference]: Start difference. First operand 380 states and 481 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 06:17:29,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:17:29,163 INFO L93 Difference]: Finished difference Result 762 states and 979 transitions. [2024-12-02 06:17:29,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:17:29,163 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 49 [2024-12-02 06:17:29,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:17:29,166 INFO L225 Difference]: With dead ends: 762 [2024-12-02 06:17:29,166 INFO L226 Difference]: Without dead ends: 389 [2024-12-02 06:17:29,168 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 06:17:29,168 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 556 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 06:17:29,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 556 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:17:29,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-12-02 06:17:29,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 389. [2024-12-02 06:17:29,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 296 states have (on average 1.2533783783783783) internal successors, (371), 314 states have internal predecessors, (371), 46 states have call successors, (46), 39 states have call predecessors, (46), 46 states have return successors, (73), 49 states have call predecessors, (73), 46 states have call successors, (73) [2024-12-02 06:17:29,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 490 transitions. [2024-12-02 06:17:29,202 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 490 transitions. Word has length 49 [2024-12-02 06:17:29,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:17:29,202 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 490 transitions. [2024-12-02 06:17:29,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 06:17:29,203 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 490 transitions. [2024-12-02 06:17:29,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-12-02 06:17:29,203 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:17:29,204 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] [2024-12-02 06:17:29,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 06:17:29,204 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:17:29,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:17:29,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1684377933, now seen corresponding path program 1 times [2024-12-02 06:17:29,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:17:29,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800507196] [2024-12-02 06:17:29,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:17:29,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:17:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:17:29,288 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 06:17:29,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:17:29,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800507196] [2024-12-02 06:17:29,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800507196] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:17:29,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:17:29,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:17:29,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432275271] [2024-12-02 06:17:29,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:17:29,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:17:29,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:17:29,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:17:29,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:17:29,290 INFO L87 Difference]: Start difference. First operand 389 states and 490 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 06:17:29,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:17:29,377 INFO L93 Difference]: Finished difference Result 845 states and 1117 transitions. [2024-12-02 06:17:29,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:17:29,378 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 49 [2024-12-02 06:17:29,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:17:29,382 INFO L225 Difference]: With dead ends: 845 [2024-12-02 06:17:29,382 INFO L226 Difference]: Without dead ends: 554 [2024-12-02 06:17:29,383 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 06:17:29,384 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 76 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:17:29,384 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 395 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:17:29,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-12-02 06:17:29,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 553. [2024-12-02 06:17:29,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 418 states have (on average 1.2464114832535884) internal successors, (521), 442 states have internal predecessors, (521), 68 states have call successors, (68), 59 states have call predecessors, (68), 66 states have return successors, (123), 71 states have call predecessors, (123), 68 states have call successors, (123) [2024-12-02 06:17:29,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 712 transitions. [2024-12-02 06:17:29,437 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 712 transitions. Word has length 49 [2024-12-02 06:17:29,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:17:29,437 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 712 transitions. [2024-12-02 06:17:29,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 06:17:29,437 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 712 transitions. [2024-12-02 06:17:29,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-12-02 06:17:29,438 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:17:29,439 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] [2024-12-02 06:17:29,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 06:17:29,439 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:17:29,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:17:29,439 INFO L85 PathProgramCache]: Analyzing trace with hash -617961, now seen corresponding path program 1 times [2024-12-02 06:17:29,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:17:29,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068624745] [2024-12-02 06:17:29,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:17:29,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:17:29,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:17:29,588 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 06:17:29,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:17:29,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068624745] [2024-12-02 06:17:29,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068624745] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:17:29,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:17:29,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 06:17:29,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098079121] [2024-12-02 06:17:29,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:17:29,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 06:17:29,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:17:29,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 06:17:29,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:17:29,589 INFO L87 Difference]: Start difference. First operand 553 states and 712 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 06:17:29,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:17:29,903 INFO L93 Difference]: Finished difference Result 1509 states and 2051 transitions. [2024-12-02 06:17:29,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 06:17:29,903 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) Word has length 58 [2024-12-02 06:17:29,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:17:29,909 INFO L225 Difference]: With dead ends: 1509 [2024-12-02 06:17:29,909 INFO L226 Difference]: Without dead ends: 963 [2024-12-02 06:17:29,910 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-12-02 06:17:29,911 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 69 mSDsluCounter, 1067 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:17:29,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 1232 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:17:29,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2024-12-02 06:17:29,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 963. [2024-12-02 06:17:29,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 716 states have (on average 1.2220670391061452) internal successors, (875), 755 states have internal predecessors, (875), 128 states have call successors, (128), 111 states have call predecessors, (128), 118 states have return successors, (239), 130 states have call predecessors, (239), 128 states have call successors, (239) [2024-12-02 06:17:29,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1242 transitions. [2024-12-02 06:17:29,966 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1242 transitions. Word has length 58 [2024-12-02 06:17:29,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:17:29,966 INFO L471 AbstractCegarLoop]: Abstraction has 963 states and 1242 transitions. [2024-12-02 06:17:29,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 06:17:29,966 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1242 transitions. [2024-12-02 06:17:29,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 06:17:29,968 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:17:29,968 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] [2024-12-02 06:17:29,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 06:17:29,968 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:17:29,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:17:29,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1158721885, now seen corresponding path program 1 times [2024-12-02 06:17:29,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:17:29,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123634173] [2024-12-02 06:17:29,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:17:29,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:17:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:17:30,032 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 06:17:30,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:17:30,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123634173] [2024-12-02 06:17:30,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123634173] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:17:30,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:17:30,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:17:30,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139429679] [2024-12-02 06:17:30,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:17:30,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:17:30,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:17:30,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:17:30,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:17:30,034 INFO L87 Difference]: Start difference. First operand 963 states and 1242 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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 06:17:30,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:17:30,137 INFO L93 Difference]: Finished difference Result 1919 states and 2477 transitions. [2024-12-02 06:17:30,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:17:30,138 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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 59 [2024-12-02 06:17:30,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:17:30,147 INFO L225 Difference]: With dead ends: 1919 [2024-12-02 06:17:30,147 INFO L226 Difference]: Without dead ends: 963 [2024-12-02 06:17:30,150 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 06:17:30,151 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 56 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:17:30,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 464 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:17:30,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2024-12-02 06:17:30,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 889. [2024-12-02 06:17:30,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 660 states have (on average 1.187878787878788) internal successors, (784), 697 states have internal predecessors, (784), 117 states have call successors, (117), 100 states have call predecessors, (117), 111 states have return successors, (176), 116 states have call predecessors, (176), 117 states have call successors, (176) [2024-12-02 06:17:30,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1077 transitions. [2024-12-02 06:17:30,205 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1077 transitions. Word has length 59 [2024-12-02 06:17:30,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:17:30,205 INFO L471 AbstractCegarLoop]: Abstraction has 889 states and 1077 transitions. [2024-12-02 06:17:30,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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 06:17:30,205 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1077 transitions. [2024-12-02 06:17:30,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-02 06:17:30,209 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:17:30,209 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] [2024-12-02 06:17:30,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 06:17:30,210 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:17:30,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:17:30,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1110282065, now seen corresponding path program 1 times [2024-12-02 06:17:30,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:17:30,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020185830] [2024-12-02 06:17:30,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:17:30,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:17:30,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:17:30,267 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 06:17:30,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:17:30,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020185830] [2024-12-02 06:17:30,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020185830] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:17:30,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:17:30,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:17:30,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864529361] [2024-12-02 06:17:30,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:17:30,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:17:30,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:17:30,269 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:17:30,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:17:30,269 INFO L87 Difference]: Start difference. First operand 889 states and 1077 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (7), 2 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 06:17:30,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:17:30,320 INFO L93 Difference]: Finished difference Result 1771 states and 2177 transitions. [2024-12-02 06:17:30,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:17:30,321 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (7), 2 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 91 [2024-12-02 06:17:30,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:17:30,325 INFO L225 Difference]: With dead ends: 1771 [2024-12-02 06:17:30,325 INFO L226 Difference]: Without dead ends: 889 [2024-12-02 06:17:30,333 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 06:17:30,333 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 0 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 370 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 06:17:30,334 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 370 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:17:30,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2024-12-02 06:17:30,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 889. [2024-12-02 06:17:30,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 660 states have (on average 1.1787878787878787) internal successors, (778), 697 states have internal predecessors, (778), 117 states have call successors, (117), 100 states have call predecessors, (117), 111 states have return successors, (176), 116 states have call predecessors, (176), 117 states have call successors, (176) [2024-12-02 06:17:30,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1071 transitions. [2024-12-02 06:17:30,403 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1071 transitions. Word has length 91 [2024-12-02 06:17:30,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:17:30,403 INFO L471 AbstractCegarLoop]: Abstraction has 889 states and 1071 transitions. [2024-12-02 06:17:30,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (7), 2 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 06:17:30,404 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1071 transitions. [2024-12-02 06:17:30,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-02 06:17:30,407 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:17:30,408 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] [2024-12-02 06:17:30,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 06:17:30,408 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:17:30,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:17:30,408 INFO L85 PathProgramCache]: Analyzing trace with hash 2064222223, now seen corresponding path program 1 times [2024-12-02 06:17:30,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:17:30,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23751836] [2024-12-02 06:17:30,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:17:30,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:17:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:17:30,483 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 06:17:30,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:17:30,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23751836] [2024-12-02 06:17:30,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23751836] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:17:30,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:17:30,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:17:30,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658095315] [2024-12-02 06:17:30,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:17:30,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:17:30,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:17:30,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:17:30,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:17:30,484 INFO L87 Difference]: Start difference. First operand 889 states and 1071 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (7), 2 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 06:17:30,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:17:30,543 INFO L93 Difference]: Finished difference Result 1566 states and 1917 transitions. [2024-12-02 06:17:30,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:17:30,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (7), 2 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 91 [2024-12-02 06:17:30,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:17:30,548 INFO L225 Difference]: With dead ends: 1566 [2024-12-02 06:17:30,548 INFO L226 Difference]: Without dead ends: 684 [2024-12-02 06:17:30,551 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 06:17:30,551 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 279 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 06:17:30,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 279 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:17:30,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2024-12-02 06:17:30,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 672. [2024-12-02 06:17:30,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 500 states have (on average 1.176) internal successors, (588), 526 states have internal predecessors, (588), 89 states have call successors, (89), 80 states have call predecessors, (89), 82 states have return successors, (125), 86 states have call predecessors, (125), 89 states have call successors, (125) [2024-12-02 06:17:30,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 802 transitions. [2024-12-02 06:17:30,608 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 802 transitions. Word has length 91 [2024-12-02 06:17:30,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:17:30,609 INFO L471 AbstractCegarLoop]: Abstraction has 672 states and 802 transitions. [2024-12-02 06:17:30,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (7), 2 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 06:17:30,609 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 802 transitions. [2024-12-02 06:17:30,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 06:17:30,611 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:17:30,612 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:17:30,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 06:17:30,612 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:17:30,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:17:30,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1784101299, now seen corresponding path program 1 times [2024-12-02 06:17:30,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:17:30,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881854076] [2024-12-02 06:17:30,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:17:30,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:17:30,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:17:30,783 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 16 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 06:17:30,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:17:30,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881854076] [2024-12-02 06:17:30,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881854076] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:17:30,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004619237] [2024-12-02 06:17:30,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:17:30,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:17:30,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920935b2-4590-4d46-8b55-b9e807a980a8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:17:30,787 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920935b2-4590-4d46-8b55-b9e807a980a8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:17:30,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920935b2-4590-4d46-8b55-b9e807a980a8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 06:17:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:17:30,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 06:17:30,901 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:17:31,127 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 06:17:31,128 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:17:31,495 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 06:17:31,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004619237] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:17:31,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:17:31,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 9] total 19 [2024-12-02 06:17:31,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965838536] [2024-12-02 06:17:31,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:17:31,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 06:17:31,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:17:31,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 06:17:31,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2024-12-02 06:17:31,498 INFO L87 Difference]: Start difference. First operand 672 states and 802 transitions. Second operand has 19 states, 19 states have (on average 7.052631578947368) internal successors, (134), 15 states have internal predecessors, (134), 7 states have call successors, (23), 7 states have call predecessors, (23), 10 states have return successors, (23), 10 states have call predecessors, (23), 7 states have call successors, (23) [2024-12-02 06:17:32,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:17:32,508 INFO L93 Difference]: Finished difference Result 1352 states and 1671 transitions. [2024-12-02 06:17:32,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-12-02 06:17:32,509 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 7.052631578947368) internal successors, (134), 15 states have internal predecessors, (134), 7 states have call successors, (23), 7 states have call predecessors, (23), 10 states have return successors, (23), 10 states have call predecessors, (23), 7 states have call successors, (23) Word has length 95 [2024-12-02 06:17:32,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:17:32,511 INFO L225 Difference]: With dead ends: 1352 [2024-12-02 06:17:32,511 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 06:17:32,515 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 181 SyntacticMatches, 7 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=479, Invalid=1873, Unknown=0, NotChecked=0, Total=2352 [2024-12-02 06:17:32,516 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 528 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:17:32,516 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 506 Invalid, 978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 06:17:32,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 06:17:32,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 06:17:32,516 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 06:17:32,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 06:17:32,518 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 95 [2024-12-02 06:17:32,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:17:32,518 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 06:17:32,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.052631578947368) internal successors, (134), 15 states have internal predecessors, (134), 7 states have call successors, (23), 7 states have call predecessors, (23), 10 states have return successors, (23), 10 states have call predecessors, (23), 7 states have call successors, (23) [2024-12-02 06:17:32,518 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 06:17:32,518 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 06:17:32,521 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 06:17:32,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920935b2-4590-4d46-8b55-b9e807a980a8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 06:17:32,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920935b2-4590-4d46-8b55-b9e807a980a8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:17:32,723 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:17:32,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 06:17:37,313 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 06:17:37,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:17:37 BoogieIcfgContainer [2024-12-02 06:17:37,326 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 06:17:37,327 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 06:17:37,327 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 06:17:37,327 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 06:17:37,327 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:17:27" (3/4) ... [2024-12-02 06:17:37,330 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 06:17:37,335 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-12-02 06:17:37,335 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-12-02 06:17:37,335 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-12-02 06:17:37,335 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-12-02 06:17:37,335 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-12-02 06:17:37,335 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-12-02 06:17:37,335 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-12-02 06:17:37,335 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-12-02 06:17:37,340 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-12-02 06:17:37,340 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-12-02 06:17:37,341 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-12-02 06:17:37,341 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 06:17:37,341 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 06:17:37,426 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920935b2-4590-4d46-8b55-b9e807a980a8/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 06:17:37,426 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920935b2-4590-4d46-8b55-b9e807a980a8/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 06:17:37,427 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 06:17:37,427 INFO L158 Benchmark]: Toolchain (without parser) took 11003.49ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 91.9MB in the beginning and 159.2MB in the end (delta: -67.3MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. [2024-12-02 06:17:37,428 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 72.8MB in the end (delta: 86.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:17:37,428 INFO L158 Benchmark]: CACSL2BoogieTranslator took 351.78ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 73.2MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 06:17:37,428 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.22ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 71.3MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 06:17:37,428 INFO L158 Benchmark]: Boogie Preprocessor took 37.22ms. Allocated memory is still 117.4MB. Free memory was 71.3MB in the beginning and 69.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:17:37,429 INFO L158 Benchmark]: RCFGBuilder took 345.23ms. Allocated memory is still 117.4MB. Free memory was 69.6MB in the beginning and 52.8MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 06:17:37,429 INFO L158 Benchmark]: TraceAbstraction took 10131.36ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 52.3MB in the beginning and 164.9MB in the end (delta: -112.6MB). Peak memory consumption was 92.7MB. Max. memory is 16.1GB. [2024-12-02 06:17:37,429 INFO L158 Benchmark]: Witness Printer took 99.76ms. Allocated memory is still 234.9MB. Free memory was 164.9MB in the beginning and 159.2MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 06:17:37,431 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 72.8MB in the end (delta: 86.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 351.78ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 73.2MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.22ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 71.3MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.22ms. Allocated memory is still 117.4MB. Free memory was 71.3MB in the beginning and 69.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 345.23ms. Allocated memory is still 117.4MB. Free memory was 69.6MB in the beginning and 52.8MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 10131.36ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 52.3MB in the beginning and 164.9MB in the end (delta: -112.6MB). Peak memory consumption was 92.7MB. Max. memory is 16.1GB. * Witness Printer took 99.76ms. Allocated memory is still 234.9MB. Free memory was 164.9MB in the beginning and 159.2MB in the end (delta: 5.7MB). 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,"Specification3_spec.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] - GenericResultAtLocation [Line: 186]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [186] - GenericResultAtLocation [Line: 288]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [288] - GenericResultAtLocation [Line: 485]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [485] - GenericResultAtLocation [Line: 550]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [550] - GenericResultAtLocation [Line: 585]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [585] - GenericResultAtLocation [Line: 594]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [594] * 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: 590]: 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 9 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.5s, OverallIterations: 13, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1302 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1291 mSDsluCounter, 5438 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4048 mSDsCounter, 312 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1430 IncrementalHoareTripleChecker+Invalid, 1742 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 312 mSolverCounterUnsat, 1390 mSDtfsCounter, 1430 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 325 GetRequests, 214 SyntacticMatches, 7 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=963occurred in iteration=9, InterpolantAutomatonStates: 103, 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, 102 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 819 NumberOfCodeBlocks, 819 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 899 ConstructedInterpolants, 0 QuantifiedInterpolants, 1548 SizeOfPredicates, 2 NumberOfNonLiveVariables, 314 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 176/201 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: 496]: Loop Invariant Derived loop invariant: ((((((((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (pumpRunning == 1)) || (((((pumpRunning == 0) && (1 == systemActive)) && (methaneLevelCritical != 0)) && (splverifierCounter == 0)) && (waterLevel <= 2))) || ((((pumpRunning == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) || ((((waterLevel <= 1) && (1 == systemActive)) && (splverifierCounter == 0)) && (pumpRunning == 1))) - InvariantResult [Line: 495]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-12-02 06:17:37,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920935b2-4590-4d46-8b55-b9e807a980a8/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