./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0edf44-f4a0-4985-98ca-b261900942bf/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0edf44-f4a0-4985-98ca-b261900942bf/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0edf44-f4a0-4985-98ca-b261900942bf/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0edf44-f4a0-4985-98ca-b261900942bf/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product61.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0edf44-f4a0-4985-98ca-b261900942bf/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0edf44-f4a0-4985-98ca-b261900942bf/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 53b1b58c0a8af862b137647fd316df606e2053e614741221b62b3a107765e608 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:26:23,261 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:26:23,370 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0edf44-f4a0-4985-98ca-b261900942bf/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:26:23,376 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:26:23,376 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:26:23,422 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:26:23,423 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:26:23,423 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:26:23,423 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:26:23,424 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:26:23,424 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:26:23,424 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:26:23,424 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:26:23,424 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:26:23,425 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:26:23,426 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:26:23,427 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:26:23,427 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:26:23,427 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:26:23,427 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:26:23,427 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:26:23,427 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:26:23,427 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:26:23,427 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:26:23,428 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:26:23,428 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:26:23,428 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:26:23,428 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:26:23,428 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:26:23,428 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:26:23,428 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:26:23,428 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:26:23,428 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:26:23,429 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:26:23,429 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:26:23,429 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:26:23,429 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:26:23,429 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:26:23,429 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:26:23,429 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:26:23,429 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:26:23,429 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:26:23,429 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:26:23,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:26:23,430 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:26:23,431 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:26:23,431 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:26:23,431 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:26:23,431 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_4a0edf44-f4a0-4985-98ca-b261900942bf/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53b1b58c0a8af862b137647fd316df606e2053e614741221b62b3a107765e608 [2024-11-24 01:26:23,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:26:23,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:26:23,744 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:26:23,746 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:26:23,746 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:26:23,747 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0edf44-f4a0-4985-98ca-b261900942bf/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/product-lines/minepump_spec3_product61.cil.c [2024-11-24 01:26:26,695 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0edf44-f4a0-4985-98ca-b261900942bf/bin/uautomizer-verify-LYvppIcaGC/data/8f5fceb52/1f4a3a56da2d4439941fc194d6eb5ecf/FLAGa081eb25a [2024-11-24 01:26:27,093 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:26:27,094 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0edf44-f4a0-4985-98ca-b261900942bf/sv-benchmarks/c/product-lines/minepump_spec3_product61.cil.c [2024-11-24 01:26:27,115 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0edf44-f4a0-4985-98ca-b261900942bf/bin/uautomizer-verify-LYvppIcaGC/data/8f5fceb52/1f4a3a56da2d4439941fc194d6eb5ecf/FLAGa081eb25a [2024-11-24 01:26:27,140 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0edf44-f4a0-4985-98ca-b261900942bf/bin/uautomizer-verify-LYvppIcaGC/data/8f5fceb52/1f4a3a56da2d4439941fc194d6eb5ecf [2024-11-24 01:26:27,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:26:27,147 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:26:27,149 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:26:27,150 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:26:27,159 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:26:27,160 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:26:27" (1/1) ... [2024-11-24 01:26:27,163 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d692782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:27, skipping insertion in model container [2024-11-24 01:26:27,163 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:26:27" (1/1) ... [2024-11-24 01:26:27,213 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:26:27,511 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_4a0edf44-f4a0-4985-98ca-b261900942bf/sv-benchmarks/c/product-lines/minepump_spec3_product61.cil.c[7381,7394] [2024-11-24 01:26:27,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:26:27,607 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:26:27,617 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2024-11-24 01:26:27,618 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [118] [2024-11-24 01:26:27,618 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [368] [2024-11-24 01:26:27,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [472] [2024-11-24 01:26:27,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [481] [2024-11-24 01:26:27,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [580] [2024-11-24 01:26:27,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [614] [2024-11-24 01:26:27,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [649] [2024-11-24 01:26:27,641 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_4a0edf44-f4a0-4985-98ca-b261900942bf/sv-benchmarks/c/product-lines/minepump_spec3_product61.cil.c[7381,7394] [2024-11-24 01:26:27,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:26:27,748 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:26:27,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:27 WrapperNode [2024-11-24 01:26:27,750 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:26:27,752 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:26:27,752 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:26:27,752 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:26:27,759 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:27" (1/1) ... [2024-11-24 01:26:27,778 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:27" (1/1) ... [2024-11-24 01:26:27,819 INFO L138 Inliner]: procedures = 57, calls = 105, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 226 [2024-11-24 01:26:27,820 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:26:27,820 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:26:27,821 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:26:27,821 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:26:27,831 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:27" (1/1) ... [2024-11-24 01:26:27,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:27" (1/1) ... [2024-11-24 01:26:27,833 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:27" (1/1) ... [2024-11-24 01:26:27,847 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 01:26:27,848 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:27" (1/1) ... [2024-11-24 01:26:27,848 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:27" (1/1) ... [2024-11-24 01:26:27,853 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:27" (1/1) ... [2024-11-24 01:26:27,857 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:27" (1/1) ... [2024-11-24 01:26:27,864 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:27" (1/1) ... [2024-11-24 01:26:27,865 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:27" (1/1) ... [2024-11-24 01:26:27,866 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:27" (1/1) ... [2024-11-24 01:26:27,872 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:26:27,873 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:26:27,873 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:26:27,873 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:26:27,875 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:27" (1/1) ... [2024-11-24 01:26:27,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:26:27,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0edf44-f4a0-4985-98ca-b261900942bf/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:26:27,907 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0edf44-f4a0-4985-98ca-b261900942bf/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:26:27,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0edf44-f4a0-4985-98ca-b261900942bf/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:26:27,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:26:27,933 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-24 01:26:27,933 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-24 01:26:27,933 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-24 01:26:27,933 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-24 01:26:27,933 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-24 01:26:27,933 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-24 01:26:27,933 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-24 01:26:27,933 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-24 01:26:27,934 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-24 01:26:27,934 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-24 01:26:27,934 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-24 01:26:27,936 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-24 01:26:27,937 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-11-24 01:26:27,939 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-11-24 01:26:27,939 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-11-24 01:26:27,940 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-11-24 01:26:27,940 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-24 01:26:27,940 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-24 01:26:27,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:26:27,940 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-24 01:26:27,940 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-24 01:26:27,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:26:27,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:26:28,046 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:26:28,048 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:26:28,374 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-11-24 01:26:28,375 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:26:28,388 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:26:28,388 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-24 01:26:28,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:26:28 BoogieIcfgContainer [2024-11-24 01:26:28,388 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:26:28,391 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:26:28,391 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:26:28,396 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:26:28,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:26:27" (1/3) ... [2024-11-24 01:26:28,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be1c14d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:26:28, skipping insertion in model container [2024-11-24 01:26:28,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:27" (2/3) ... [2024-11-24 01:26:28,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be1c14d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:26:28, skipping insertion in model container [2024-11-24 01:26:28,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:26:28" (3/3) ... [2024-11-24 01:26:28,399 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product61.cil.c [2024-11-24 01:26:28,417 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:26:28,419 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec3_product61.cil.c that has 11 procedures, 108 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-24 01:26:28,484 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:26:28,500 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;@5e6a2e8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:26:28,503 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:26:28,509 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 78 states have (on average 1.3846153846153846) internal successors, (108), 88 states have internal predecessors, (108), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 01:26:28,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-24 01:26:28,522 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:28,523 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] [2024-11-24 01:26:28,523 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:26:28,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:28,530 INFO L85 PathProgramCache]: Analyzing trace with hash 477777584, now seen corresponding path program 1 times [2024-11-24 01:26:28,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:28,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447652666] [2024-11-24 01:26:28,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:28,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:28,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:26:28,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:28,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447652666] [2024-11-24 01:26:28,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447652666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:26:28,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:26:28,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:26:28,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061860444] [2024-11-24 01:26:28,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:26:28,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:26:28,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:28,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:26:28,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:26:28,885 INFO L87 Difference]: Start difference. First operand has 108 states, 78 states have (on average 1.3846153846153846) internal successors, (108), 88 states have internal predecessors, (108), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-24 01:26:28,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:28,937 INFO L93 Difference]: Finished difference Result 196 states and 263 transitions. [2024-11-24 01:26:28,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:26:28,939 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 [2024-11-24 01:26:28,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:28,947 INFO L225 Difference]: With dead ends: 196 [2024-11-24 01:26:28,947 INFO L226 Difference]: Without dead ends: 91 [2024-11-24 01:26:28,951 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:26:28,955 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 12 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:28,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 227 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:26:28,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-24 01:26:28,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-24 01:26:28,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 66 states have (on average 1.3333333333333333) internal successors, (88), 75 states have internal predecessors, (88), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-24 01:26:29,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 118 transitions. [2024-11-24 01:26:29,004 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 118 transitions. Word has length 25 [2024-11-24 01:26:29,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:29,004 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 118 transitions. [2024-11-24 01:26:29,005 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) [2024-11-24 01:26:29,005 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 118 transitions. [2024-11-24 01:26:29,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-24 01:26:29,007 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:29,008 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] [2024-11-24 01:26:29,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:26:29,008 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:26:29,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:29,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1650046723, now seen corresponding path program 1 times [2024-11-24 01:26:29,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:29,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976144563] [2024-11-24 01:26:29,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:29,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:29,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:29,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:26:29,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:29,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976144563] [2024-11-24 01:26:29,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976144563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:26:29,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:26:29,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:26:29,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754029279] [2024-11-24 01:26:29,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:26:29,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:26:29,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:29,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:26:29,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:26:29,194 INFO L87 Difference]: Start difference. First operand 91 states and 118 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 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) [2024-11-24 01:26:29,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:29,233 INFO L93 Difference]: Finished difference Result 175 states and 230 transitions. [2024-11-24 01:26:29,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:26:29,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 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 [2024-11-24 01:26:29,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:29,237 INFO L225 Difference]: With dead ends: 175 [2024-11-24 01:26:29,237 INFO L226 Difference]: Without dead ends: 91 [2024-11-24 01:26:29,237 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:26:29,238 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 101 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:29,242 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 116 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:26:29,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-24 01:26:29,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-24 01:26:29,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 66 states have (on average 1.3181818181818181) internal successors, (87), 75 states have internal predecessors, (87), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-24 01:26:29,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 117 transitions. [2024-11-24 01:26:29,272 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 117 transitions. Word has length 29 [2024-11-24 01:26:29,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:29,272 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 117 transitions. [2024-11-24 01:26:29,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 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) [2024-11-24 01:26:29,272 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 117 transitions. [2024-11-24 01:26:29,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-24 01:26:29,274 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:29,274 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] [2024-11-24 01:26:29,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:26:29,274 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:26:29,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:29,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1019254393, now seen corresponding path program 1 times [2024-11-24 01:26:29,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:29,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018840096] [2024-11-24 01:26:29,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:29,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:29,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:29,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:26:29,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:29,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018840096] [2024-11-24 01:26:29,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018840096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:26:29,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:26:29,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:26:29,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074290356] [2024-11-24 01:26:29,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:26:29,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:26:29,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:29,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:26:29,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:26:29,475 INFO L87 Difference]: Start difference. First operand 91 states and 117 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-24 01:26:29,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:29,924 INFO L93 Difference]: Finished difference Result 265 states and 339 transitions. [2024-11-24 01:26:29,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:26:29,925 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) Word has length 44 [2024-11-24 01:26:29,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:29,927 INFO L225 Difference]: With dead ends: 265 [2024-11-24 01:26:29,927 INFO L226 Difference]: Without dead ends: 181 [2024-11-24 01:26:29,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:26:29,929 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 226 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:29,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 314 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:26:29,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-24 01:26:30,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 175. [2024-11-24 01:26:30,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 129 states have (on average 1.255813953488372) internal successors, (162), 138 states have internal predecessors, (162), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2024-11-24 01:26:30,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 213 transitions. [2024-11-24 01:26:30,007 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 213 transitions. Word has length 44 [2024-11-24 01:26:30,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:30,007 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 213 transitions. [2024-11-24 01:26:30,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-24 01:26:30,007 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 213 transitions. [2024-11-24 01:26:30,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-24 01:26:30,009 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:30,010 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:30,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:26:30,011 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:26:30,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:30,012 INFO L85 PathProgramCache]: Analyzing trace with hash 165379153, now seen corresponding path program 1 times [2024-11-24 01:26:30,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:30,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700701629] [2024-11-24 01:26:30,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:30,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:30,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:30,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:26:30,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:30,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700701629] [2024-11-24 01:26:30,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700701629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:26:30,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:26:30,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:26:30,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91029282] [2024-11-24 01:26:30,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:26:30,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:26:30,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:30,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:26:30,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:26:30,252 INFO L87 Difference]: Start difference. First operand 175 states and 213 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 01:26:30,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:30,361 INFO L93 Difference]: Finished difference Result 438 states and 555 transitions. [2024-11-24 01:26:30,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:26:30,361 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 50 [2024-11-24 01:26:30,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:30,366 INFO L225 Difference]: With dead ends: 438 [2024-11-24 01:26:30,366 INFO L226 Difference]: Without dead ends: 270 [2024-11-24 01:26:30,368 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 [2024-11-24 01:26:30,373 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 54 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:30,373 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 433 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:26:30,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-24 01:26:30,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2024-11-24 01:26:30,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 199 states have (on average 1.2462311557788945) internal successors, (248), 211 states have internal predecessors, (248), 35 states have call successors, (35), 30 states have call predecessors, (35), 35 states have return successors, (48), 37 states have call predecessors, (48), 35 states have call successors, (48) [2024-11-24 01:26:30,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 331 transitions. [2024-11-24 01:26:30,434 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 331 transitions. Word has length 50 [2024-11-24 01:26:30,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:30,434 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 331 transitions. [2024-11-24 01:26:30,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 01:26:30,434 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 331 transitions. [2024-11-24 01:26:30,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-24 01:26:30,440 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:30,440 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:30,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:26:30,441 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:26:30,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:30,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1389061611, now seen corresponding path program 1 times [2024-11-24 01:26:30,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:30,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783613238] [2024-11-24 01:26:30,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:30,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:30,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:26:30,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:30,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783613238] [2024-11-24 01:26:30,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783613238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:26:30,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:26:30,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:26:30,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107753172] [2024-11-24 01:26:30,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:26:30,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:26:30,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:30,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:26:30,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:26:30,615 INFO L87 Difference]: Start difference. First operand 270 states and 331 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2024-11-24 01:26:30,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:30,750 INFO L93 Difference]: Finished difference Result 596 states and 756 transitions. [2024-11-24 01:26:30,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:26:30,751 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 54 [2024-11-24 01:26:30,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:30,755 INFO L225 Difference]: With dead ends: 596 [2024-11-24 01:26:30,755 INFO L226 Difference]: Without dead ends: 428 [2024-11-24 01:26:30,756 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 [2024-11-24 01:26:30,757 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 95 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:30,758 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 514 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:26:30,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-11-24 01:26:30,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 427. [2024-11-24 01:26:30,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 311 states have (on average 1.234726688102894) internal successors, (384), 331 states have internal predecessors, (384), 57 states have call successors, (57), 48 states have call predecessors, (57), 58 states have return successors, (91), 61 states have call predecessors, (91), 57 states have call successors, (91) [2024-11-24 01:26:30,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 532 transitions. [2024-11-24 01:26:30,828 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 532 transitions. Word has length 54 [2024-11-24 01:26:30,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:30,830 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 532 transitions. [2024-11-24 01:26:30,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2024-11-24 01:26:30,831 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 532 transitions. [2024-11-24 01:26:30,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-24 01:26:30,833 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:30,833 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:30,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:26:30,833 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:26:30,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:30,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1451101225, now seen corresponding path program 1 times [2024-11-24 01:26:30,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:30,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495683954] [2024-11-24 01:26:30,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:30,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:30,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:30,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:26:30,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:30,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495683954] [2024-11-24 01:26:30,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495683954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:26:30,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:26:30,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:26:30,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461408912] [2024-11-24 01:26:30,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:26:30,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:26:30,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:30,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:26:30,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:26:30,923 INFO L87 Difference]: Start difference. First operand 427 states and 532 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2024-11-24 01:26:31,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:31,003 INFO L93 Difference]: Finished difference Result 754 states and 958 transitions. [2024-11-24 01:26:31,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:26:31,005 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 54 [2024-11-24 01:26:31,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:31,010 INFO L225 Difference]: With dead ends: 754 [2024-11-24 01:26:31,011 INFO L226 Difference]: Without dead ends: 429 [2024-11-24 01:26:31,012 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:26:31,013 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 342 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 [2024-11-24 01:26:31,013 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 342 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:26:31,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-11-24 01:26:31,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 429. [2024-11-24 01:26:31,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 313 states have (on average 1.2300319488817892) internal successors, (385), 333 states have internal predecessors, (385), 57 states have call successors, (57), 48 states have call predecessors, (57), 58 states have return successors, (91), 61 states have call predecessors, (91), 57 states have call successors, (91) [2024-11-24 01:26:31,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 533 transitions. [2024-11-24 01:26:31,096 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 533 transitions. Word has length 54 [2024-11-24 01:26:31,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:31,097 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 533 transitions. [2024-11-24 01:26:31,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2024-11-24 01:26:31,097 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 533 transitions. [2024-11-24 01:26:31,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-24 01:26:31,098 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:31,099 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:31,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:26:31,099 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:26:31,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:31,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1317087719, now seen corresponding path program 1 times [2024-11-24 01:26:31,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:31,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245469203] [2024-11-24 01:26:31,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:31,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:31,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:26:31,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:31,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245469203] [2024-11-24 01:26:31,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245469203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:26:31,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:26:31,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:26:31,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299935456] [2024-11-24 01:26:31,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:26:31,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:26:31,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:31,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:26:31,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:26:31,216 INFO L87 Difference]: Start difference. First operand 429 states and 533 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-24 01:26:31,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:31,321 INFO L93 Difference]: Finished difference Result 854 states and 1080 transitions. [2024-11-24 01:26:31,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:26:31,322 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 54 [2024-11-24 01:26:31,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:31,326 INFO L225 Difference]: With dead ends: 854 [2024-11-24 01:26:31,326 INFO L226 Difference]: Without dead ends: 432 [2024-11-24 01:26:31,329 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:26:31,331 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 100 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:31,331 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 452 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:26:31,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-11-24 01:26:31,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 432. [2024-11-24 01:26:31,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 318 states have (on average 1.2232704402515724) internal successors, (389), 337 states have internal predecessors, (389), 56 states have call successors, (56), 47 states have call predecessors, (56), 57 states have return successors, (90), 60 states have call predecessors, (90), 56 states have call successors, (90) [2024-11-24 01:26:31,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 535 transitions. [2024-11-24 01:26:31,386 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 535 transitions. Word has length 54 [2024-11-24 01:26:31,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:31,387 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 535 transitions. [2024-11-24 01:26:31,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-24 01:26:31,388 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 535 transitions. [2024-11-24 01:26:31,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-24 01:26:31,389 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:31,389 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:31,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:26:31,390 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:26:31,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:31,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1089527670, now seen corresponding path program 1 times [2024-11-24 01:26:31,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:31,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66861925] [2024-11-24 01:26:31,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:31,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:31,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:31,737 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 01:26:31,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:31,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66861925] [2024-11-24 01:26:31,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66861925] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:26:31,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024146797] [2024-11-24 01:26:31,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:31,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:26:31,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0edf44-f4a0-4985-98ca-b261900942bf/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:26:31,742 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0edf44-f4a0-4985-98ca-b261900942bf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:26:31,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0edf44-f4a0-4985-98ca-b261900942bf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:26:31,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:31,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-24 01:26:31,869 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:26:32,115 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:26:32,116 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:26:32,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024146797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:26:32,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:26:32,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-24 01:26:32,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44903214] [2024-11-24 01:26:32,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:26:32,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:26:32,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:32,121 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:26:32,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:26:32,122 INFO L87 Difference]: Start difference. First operand 432 states and 535 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 01:26:32,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:32,462 INFO L93 Difference]: Finished difference Result 1263 states and 1595 transitions. [2024-11-24 01:26:32,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:26:32,463 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 63 [2024-11-24 01:26:32,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:32,470 INFO L225 Difference]: With dead ends: 1263 [2024-11-24 01:26:32,470 INFO L226 Difference]: Without dead ends: 838 [2024-11-24 01:26:32,473 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:26:32,474 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 68 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:32,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 612 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:26:32,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2024-11-24 01:26:32,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 836. [2024-11-24 01:26:32,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 613 states have (on average 1.2120717781402937) internal successors, (743), 647 states have internal predecessors, (743), 111 states have call successors, (111), 94 states have call predecessors, (111), 111 states have return successors, (181), 117 states have call predecessors, (181), 111 states have call successors, (181) [2024-11-24 01:26:32,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1035 transitions. [2024-11-24 01:26:32,601 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1035 transitions. Word has length 63 [2024-11-24 01:26:32,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:32,601 INFO L471 AbstractCegarLoop]: Abstraction has 836 states and 1035 transitions. [2024-11-24 01:26:32,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 01:26:32,601 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1035 transitions. [2024-11-24 01:26:32,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-24 01:26:32,605 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:32,605 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:32,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0edf44-f4a0-4985-98ca-b261900942bf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 01:26:32,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0edf44-f4a0-4985-98ca-b261900942bf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:26:32,809 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:26:32,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:32,810 INFO L85 PathProgramCache]: Analyzing trace with hash 850042710, now seen corresponding path program 1 times [2024-11-24 01:26:32,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:32,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355814053] [2024-11-24 01:26:32,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:32,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:32,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:32,938 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-24 01:26:32,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:32,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355814053] [2024-11-24 01:26:32,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355814053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:26:32,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:26:32,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:26:32,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748170018] [2024-11-24 01:26:32,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:26:32,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:26:32,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:32,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:26:32,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:26:32,940 INFO L87 Difference]: Start difference. First operand 836 states and 1035 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 01:26:33,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:33,085 INFO L93 Difference]: Finished difference Result 1665 states and 2063 transitions. [2024-11-24 01:26:33,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:26:33,086 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 64 [2024-11-24 01:26:33,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:33,096 INFO L225 Difference]: With dead ends: 1665 [2024-11-24 01:26:33,096 INFO L226 Difference]: Without dead ends: 836 [2024-11-24 01:26:33,099 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 [2024-11-24 01:26:33,100 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 70 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:33,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 532 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:26:33,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2024-11-24 01:26:33,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 814. [2024-11-24 01:26:33,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 597 states have (on average 1.1892797319932997) internal successors, (710), 629 states have internal predecessors, (710), 107 states have call successors, (107), 90 states have call predecessors, (107), 109 states have return successors, (155), 113 states have call predecessors, (155), 107 states have call successors, (155) [2024-11-24 01:26:33,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 972 transitions. [2024-11-24 01:26:33,206 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 972 transitions. Word has length 64 [2024-11-24 01:26:33,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:33,207 INFO L471 AbstractCegarLoop]: Abstraction has 814 states and 972 transitions. [2024-11-24 01:26:33,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 01:26:33,208 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 972 transitions. [2024-11-24 01:26:33,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-24 01:26:33,211 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:33,211 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:33,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:26:33,211 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:26:33,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:33,212 INFO L85 PathProgramCache]: Analyzing trace with hash 2132780186, now seen corresponding path program 1 times [2024-11-24 01:26:33,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:33,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055523171] [2024-11-24 01:26:33,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:33,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:33,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:33,396 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 01:26:33,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:33,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055523171] [2024-11-24 01:26:33,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055523171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:26:33,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:26:33,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 01:26:33,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948423901] [2024-11-24 01:26:33,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:26:33,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:26:33,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:33,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:26:33,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:26:33,398 INFO L87 Difference]: Start difference. First operand 814 states and 972 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-24 01:26:33,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:33,772 INFO L93 Difference]: Finished difference Result 1593 states and 1917 transitions. [2024-11-24 01:26:33,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:26:33,773 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 67 [2024-11-24 01:26:33,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:33,778 INFO L225 Difference]: With dead ends: 1593 [2024-11-24 01:26:33,778 INFO L226 Difference]: Without dead ends: 786 [2024-11-24 01:26:33,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:26:33,781 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 239 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 1078 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:33,782 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 1078 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:26:33,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2024-11-24 01:26:33,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 786. [2024-11-24 01:26:33,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 569 states have (on average 1.1616871704745166) internal successors, (661), 601 states have internal predecessors, (661), 107 states have call successors, (107), 90 states have call predecessors, (107), 109 states have return successors, (150), 113 states have call predecessors, (150), 107 states have call successors, (150) [2024-11-24 01:26:33,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 918 transitions. [2024-11-24 01:26:33,876 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 918 transitions. Word has length 67 [2024-11-24 01:26:33,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:33,876 INFO L471 AbstractCegarLoop]: Abstraction has 786 states and 918 transitions. [2024-11-24 01:26:33,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-24 01:26:33,877 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 918 transitions. [2024-11-24 01:26:33,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-24 01:26:33,882 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:33,883 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:33,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 01:26:33,884 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:26:33,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:33,885 INFO L85 PathProgramCache]: Analyzing trace with hash -2048109890, now seen corresponding path program 1 times [2024-11-24 01:26:33,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:33,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193835385] [2024-11-24 01:26:33,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:33,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:33,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:34,014 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 01:26:34,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:34,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193835385] [2024-11-24 01:26:34,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193835385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:26:34,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:26:34,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:26:34,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502699923] [2024-11-24 01:26:34,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:26:34,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:26:34,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:34,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:26:34,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:26:34,017 INFO L87 Difference]: Start difference. First operand 786 states and 918 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 01:26:34,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:34,113 INFO L93 Difference]: Finished difference Result 1565 states and 1856 transitions. [2024-11-24 01:26:34,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:26:34,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 103 [2024-11-24 01:26:34,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:34,121 INFO L225 Difference]: With dead ends: 1565 [2024-11-24 01:26:34,122 INFO L226 Difference]: Without dead ends: 786 [2024-11-24 01:26:34,124 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:26:34,126 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 0 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:34,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 450 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:26:34,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2024-11-24 01:26:34,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 786. [2024-11-24 01:26:34,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 569 states have (on average 1.1546572934973638) internal successors, (657), 601 states have internal predecessors, (657), 107 states have call successors, (107), 90 states have call predecessors, (107), 109 states have return successors, (150), 113 states have call predecessors, (150), 107 states have call successors, (150) [2024-11-24 01:26:34,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 914 transitions. [2024-11-24 01:26:34,229 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 914 transitions. Word has length 103 [2024-11-24 01:26:34,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:34,230 INFO L471 AbstractCegarLoop]: Abstraction has 786 states and 914 transitions. [2024-11-24 01:26:34,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 01:26:34,230 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 914 transitions. [2024-11-24 01:26:34,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-24 01:26:34,234 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:34,235 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:34,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 01:26:34,235 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:26:34,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:34,236 INFO L85 PathProgramCache]: Analyzing trace with hash 335814848, now seen corresponding path program 1 times [2024-11-24 01:26:34,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:34,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830030549] [2024-11-24 01:26:34,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:34,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:34,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:34,428 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-24 01:26:34,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:34,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830030549] [2024-11-24 01:26:34,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830030549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:26:34,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:26:34,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:26:34,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091252680] [2024-11-24 01:26:34,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:26:34,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:26:34,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:34,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:26:34,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:26:34,432 INFO L87 Difference]: Start difference. First operand 786 states and 914 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-24 01:26:34,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:34,629 INFO L93 Difference]: Finished difference Result 1472 states and 1731 transitions. [2024-11-24 01:26:34,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:26:34,630 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 103 [2024-11-24 01:26:34,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:34,637 INFO L225 Difference]: With dead ends: 1472 [2024-11-24 01:26:34,637 INFO L226 Difference]: Without dead ends: 693 [2024-11-24 01:26:34,640 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:26:34,640 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 103 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:34,641 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 419 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:26:34,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-11-24 01:26:34,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 671. [2024-11-24 01:26:34,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 484 states have (on average 1.1446280991735538) internal successors, (554), 512 states have internal predecessors, (554), 93 states have call successors, (93), 78 states have call predecessors, (93), 93 states have return successors, (118), 96 states have call predecessors, (118), 93 states have call successors, (118) [2024-11-24 01:26:34,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 765 transitions. [2024-11-24 01:26:34,724 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 765 transitions. Word has length 103 [2024-11-24 01:26:34,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:34,724 INFO L471 AbstractCegarLoop]: Abstraction has 671 states and 765 transitions. [2024-11-24 01:26:34,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-24 01:26:34,724 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 765 transitions. [2024-11-24 01:26:34,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-24 01:26:34,727 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:34,728 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:34,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 01:26:34,728 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:26:34,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:34,729 INFO L85 PathProgramCache]: Analyzing trace with hash 2069919298, now seen corresponding path program 1 times [2024-11-24 01:26:34,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:34,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272134570] [2024-11-24 01:26:34,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:34,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:35,164 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 01:26:35,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:35,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272134570] [2024-11-24 01:26:35,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272134570] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:26:35,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889191117] [2024-11-24 01:26:35,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:35,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:26:35,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0edf44-f4a0-4985-98ca-b261900942bf/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:26:35,166 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0edf44-f4a0-4985-98ca-b261900942bf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:26:35,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0edf44-f4a0-4985-98ca-b261900942bf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:26:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:35,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-24 01:26:35,293 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:26:35,501 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-24 01:26:35,502 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:26:35,913 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 01:26:35,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889191117] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:26:35,913 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:26:35,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 9] total 17 [2024-11-24 01:26:35,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953456214] [2024-11-24 01:26:35,914 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:26:35,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-24 01:26:35,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:35,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-24 01:26:35,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:26:35,916 INFO L87 Difference]: Start difference. First operand 671 states and 765 transitions. Second operand has 17 states, 17 states have (on average 6.411764705882353) internal successors, (109), 15 states have internal predecessors, (109), 7 states have call successors, (23), 8 states have call predecessors, (23), 8 states have return successors, (22), 6 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-24 01:26:36,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:36,690 INFO L93 Difference]: Finished difference Result 1263 states and 1501 transitions. [2024-11-24 01:26:36,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 01:26:36,690 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.411764705882353) internal successors, (109), 15 states have internal predecessors, (109), 7 states have call successors, (23), 8 states have call predecessors, (23), 8 states have return successors, (22), 6 states have call predecessors, (22), 7 states have call successors, (22) Word has length 103 [2024-11-24 01:26:36,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:36,693 INFO L225 Difference]: With dead ends: 1263 [2024-11-24 01:26:36,693 INFO L226 Difference]: Without dead ends: 0 [2024-11-24 01:26:36,696 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 197 SyntacticMatches, 7 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=243, Invalid=513, Unknown=0, NotChecked=0, Total=756 [2024-11-24 01:26:36,696 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 310 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:36,697 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 299 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:26:36,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-24 01:26:36,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-24 01:26:36,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:26:36,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-24 01:26:36,699 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 103 [2024-11-24 01:26:36,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:36,699 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 01:26:36,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.411764705882353) internal successors, (109), 15 states have internal predecessors, (109), 7 states have call successors, (23), 8 states have call predecessors, (23), 8 states have return successors, (22), 6 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-24 01:26:36,700 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-24 01:26:36,700 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 01:26:36,702 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 01:26:36,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0edf44-f4a0-4985-98ca-b261900942bf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 01:26:36,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0edf44-f4a0-4985-98ca-b261900942bf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:26:36,911 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:36,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-24 01:26:44,501 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 01:26:44,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:26:44 BoogieIcfgContainer [2024-11-24 01:26:44,519 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 01:26:44,520 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 01:26:44,520 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 01:26:44,520 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 01:26:44,524 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:26:28" (3/4) ... [2024-11-24 01:26:44,527 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-24 01:26:44,533 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-24 01:26:44,533 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-24 01:26:44,533 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-24 01:26:44,533 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-11-24 01:26:44,533 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-24 01:26:44,533 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-24 01:26:44,534 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-24 01:26:44,534 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-24 01:26:44,534 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-11-24 01:26:44,534 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-11-24 01:26:44,545 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-24 01:26:44,546 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-24 01:26:44,546 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-24 01:26:44,547 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 01:26:44,547 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 01:26:44,691 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0edf44-f4a0-4985-98ca-b261900942bf/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 01:26:44,691 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0edf44-f4a0-4985-98ca-b261900942bf/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 01:26:44,691 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 01:26:44,692 INFO L158 Benchmark]: Toolchain (without parser) took 17546.40ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 90.5MB in the beginning and 164.8MB in the end (delta: -74.2MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. [2024-11-24 01:26:44,692 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 117.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:26:44,693 INFO L158 Benchmark]: CACSL2BoogieTranslator took 601.92ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 71.5MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 01:26:44,693 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.29ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 69.5MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:26:44,693 INFO L158 Benchmark]: Boogie Preprocessor took 52.10ms. Allocated memory is still 117.4MB. Free memory was 69.5MB in the beginning and 67.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:26:44,693 INFO L158 Benchmark]: RCFGBuilder took 515.23ms. Allocated memory is still 117.4MB. Free memory was 67.7MB in the beginning and 49.5MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 01:26:44,694 INFO L158 Benchmark]: TraceAbstraction took 16128.68ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 48.8MB in the beginning and 172.8MB in the end (delta: -124.0MB). Peak memory consumption was 86.6MB. Max. memory is 16.1GB. [2024-11-24 01:26:44,694 INFO L158 Benchmark]: Witness Printer took 171.30ms. Allocated memory is still 218.1MB. Free memory was 172.8MB in the beginning and 164.8MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:26:44,696 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 117.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 601.92ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 71.5MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.29ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 69.5MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.10ms. Allocated memory is still 117.4MB. Free memory was 69.5MB in the beginning and 67.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 515.23ms. Allocated memory is still 117.4MB. Free memory was 67.7MB in the beginning and 49.5MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 16128.68ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 48.8MB in the beginning and 172.8MB in the end (delta: -124.0MB). Peak memory consumption was 86.6MB. Max. memory is 16.1GB. * Witness Printer took 171.30ms. Allocated memory is still 218.1MB. Free memory was 172.8MB in the beginning and 164.8MB in the end (delta: 8.0MB). 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,"scenario.i","") [49] - GenericResultAtLocation [Line: 118]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [118] - GenericResultAtLocation [Line: 368]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [368] - GenericResultAtLocation [Line: 472]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [472] - GenericResultAtLocation [Line: 481]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [481] - GenericResultAtLocation [Line: 580]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [580] - GenericResultAtLocation [Line: 614]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [614] - GenericResultAtLocation [Line: 649]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [649] * 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: 477]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 108 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.4s, OverallIterations: 13, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1391 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1378 mSDsluCounter, 5788 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4182 mSDsCounter, 253 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1060 IncrementalHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 253 mSolverCounterUnsat, 1606 mSDtfsCounter, 1060 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 387 GetRequests, 288 SyntacticMatches, 7 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=836occurred in iteration=8, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 13 MinimizatonAttempts, 53 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 979 NumberOfCodeBlocks, 979 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1066 ConstructedInterpolants, 0 QuantifiedInterpolants, 2094 SizeOfPredicates, 2 NumberOfNonLiveVariables, 571 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 16 InterpolantComputations, 12 PerfectInterpolantSequences, 180/207 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: 63]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: ((((((((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (pumpRunning == 1)) || (((((1 == systemActive) && (methaneLevelCritical == 1)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (pumpRunning == 1))) || (((((pumpRunning == 0) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (splverifierCounter == 0)) && (waterLevel <= 2))) || (((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) RESULT: Ultimate proved your program to be correct! [2024-11-24 01:26:44,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0edf44-f4a0-4985-98ca-b261900942bf/bin/uautomizer-verify-LYvppIcaGC/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