./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e7a194b3d6e079d2329a0d70eaa59b34ff3d58300de8b046ef1cd7cff7f67b94 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:55:35,785 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:55:35,859 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 19:55:35,864 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:55:35,864 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:55:35,903 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:55:35,903 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:55:35,904 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:55:35,904 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:55:35,904 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:55:35,904 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 19:55:35,904 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 19:55:35,904 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:55:35,905 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:55:35,905 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:55:35,906 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:55:35,907 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 19:55:35,907 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 19:55:35,908 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 19:55:35,908 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 19:55:35,908 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:55:35,909 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 19:55:35,909 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 19:55:35,909 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 19:55:35,909 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 19:55:35,910 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 19:55:35,910 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:55:35,910 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:55:35,910 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 19:55:35,910 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:55:35,910 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:55:35,911 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:55:35,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:55:35,911 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:55:35,912 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:55:35,912 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:55:35,912 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:55:35,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:55:35,912 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:55:35,912 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 19:55:35,912 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 19:55:35,912 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 19:55:35,913 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 19:55:35,913 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 19:55:35,913 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 19:55:35,913 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 19:55:35,913 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 19:55:35,913 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 19:55:35,913 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_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7a194b3d6e079d2329a0d70eaa59b34ff3d58300de8b046ef1cd7cff7f67b94 [2024-11-27 19:55:36,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:55:36,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:55:36,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:55:36,261 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:55:36,262 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:55:36,264 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c [2024-11-27 19:55:39,433 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/bin/uautomizer-verify-aQ6SnzHsRB/data/2cdf43e45/3df40b1d88414405ade47e620075260b/FLAGd7a049070 [2024-11-27 19:55:39,840 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:55:39,844 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c [2024-11-27 19:55:39,875 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/bin/uautomizer-verify-aQ6SnzHsRB/data/2cdf43e45/3df40b1d88414405ade47e620075260b/FLAGd7a049070 [2024-11-27 19:55:39,902 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/bin/uautomizer-verify-aQ6SnzHsRB/data/2cdf43e45/3df40b1d88414405ade47e620075260b [2024-11-27 19:55:39,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:55:39,907 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:55:39,910 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:55:39,912 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:55:39,918 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:55:39,919 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:55:39" (1/1) ... [2024-11-27 19:55:39,920 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6011a84a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:39, skipping insertion in model container [2024-11-27 19:55:39,921 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:55:39" (1/1) ... [2024-11-27 19:55:39,983 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:55:40,362 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_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c[17915,17928] [2024-11-27 19:55:40,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:55:40,401 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:55:40,414 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2024-11-27 19:55:40,416 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [415] [2024-11-27 19:55:40,417 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [653] [2024-11-27 19:55:40,417 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [691] [2024-11-27 19:55:40,418 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [759] [2024-11-27 19:55:40,419 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [810] [2024-11-27 19:55:40,419 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [907] [2024-11-27 19:55:40,419 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [916] [2024-11-27 19:55:40,531 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_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c[17915,17928] [2024-11-27 19:55:40,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:55:40,564 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:55:40,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:40 WrapperNode [2024-11-27 19:55:40,565 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:55:40,566 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:55:40,566 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:55:40,566 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:55:40,575 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:40" (1/1) ... [2024-11-27 19:55:40,592 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:40" (1/1) ... [2024-11-27 19:55:40,638 INFO L138 Inliner]: procedures = 58, calls = 105, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 232 [2024-11-27 19:55:40,640 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:55:40,641 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:55:40,641 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:55:40,641 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:55:40,649 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:40" (1/1) ... [2024-11-27 19:55:40,649 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:40" (1/1) ... [2024-11-27 19:55:40,651 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:40" (1/1) ... [2024-11-27 19:55:40,667 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 19:55:40,667 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:40" (1/1) ... [2024-11-27 19:55:40,667 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:40" (1/1) ... [2024-11-27 19:55:40,673 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:40" (1/1) ... [2024-11-27 19:55:40,674 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:40" (1/1) ... [2024-11-27 19:55:40,679 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:40" (1/1) ... [2024-11-27 19:55:40,680 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:40" (1/1) ... [2024-11-27 19:55:40,687 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:40" (1/1) ... [2024-11-27 19:55:40,689 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:55:40,694 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:55:40,695 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:55:40,695 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:55:40,696 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:40" (1/1) ... [2024-11-27 19:55:40,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:55:40,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:40,748 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:40,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 19:55:40,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 19:55:40,781 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-27 19:55:40,781 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-27 19:55:40,781 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-27 19:55:40,781 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-27 19:55:40,781 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-27 19:55:40,781 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-27 19:55:40,781 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-27 19:55:40,782 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-27 19:55:40,782 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-27 19:55:40,782 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-27 19:55:40,782 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2024-11-27 19:55:40,782 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2024-11-27 19:55:40,782 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-11-27 19:55:40,782 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-11-27 19:55:40,782 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-27 19:55:40,782 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-27 19:55:40,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 19:55:40,783 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-27 19:55:40,783 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-27 19:55:40,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:55:40,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:55:40,862 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:55:40,863 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:55:41,212 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-27 19:55:41,212 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:55:41,227 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:55:41,227 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-27 19:55:41,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:55:41 BoogieIcfgContainer [2024-11-27 19:55:41,228 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:55:41,231 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 19:55:41,231 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 19:55:41,237 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 19:55:41,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:55:39" (1/3) ... [2024-11-27 19:55:41,238 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fcc6d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:55:41, skipping insertion in model container [2024-11-27 19:55:41,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:40" (2/3) ... [2024-11-27 19:55:41,239 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fcc6d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:55:41, skipping insertion in model container [2024-11-27 19:55:41,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:55:41" (3/3) ... [2024-11-27 19:55:41,240 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product53.cil.c [2024-11-27 19:55:41,261 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 19:55:41,264 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec5_product53.cil.c that has 10 procedures, 103 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-27 19:55:41,335 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 19:55:41,355 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;@ff56681, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 19:55:41,356 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 19:55:41,363 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 76 states have (on average 1.381578947368421) internal successors, (105), 86 states have internal predecessors, (105), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-27 19:55:41,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-27 19:55:41,377 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:41,378 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:55:41,379 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:55:41,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:41,388 INFO L85 PathProgramCache]: Analyzing trace with hash -166246936, now seen corresponding path program 1 times [2024-11-27 19:55:41,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:41,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790285465] [2024-11-27 19:55:41,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:41,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:41,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:41,694 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 19:55:41,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:41,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790285465] [2024-11-27 19:55:41,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790285465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:55:41,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:55:41,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 19:55:41,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105641454] [2024-11-27 19:55:41,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:55:41,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 19:55:41,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:41,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 19:55:41,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 19:55:41,736 INFO L87 Difference]: Start difference. First operand has 103 states, 76 states have (on average 1.381578947368421) internal successors, (105), 86 states have internal predecessors, (105), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 19:55:41,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:41,787 INFO L93 Difference]: Finished difference Result 197 states and 268 transitions. [2024-11-27 19:55:41,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 19:55:41,791 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-27 19:55:41,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:41,807 INFO L225 Difference]: With dead ends: 197 [2024-11-27 19:55:41,808 INFO L226 Difference]: Without dead ends: 94 [2024-11-27 19:55:41,812 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 19:55:41,818 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:41,820 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:55:41,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-27 19:55:41,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-27 19:55:41,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 69 states have (on average 1.318840579710145) internal successors, (91), 78 states have internal predecessors, (91), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-27 19:55:41,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 122 transitions. [2024-11-27 19:55:41,889 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 122 transitions. Word has length 32 [2024-11-27 19:55:41,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:41,890 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 122 transitions. [2024-11-27 19:55:41,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 19:55:41,891 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 122 transitions. [2024-11-27 19:55:41,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-27 19:55:41,893 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:41,893 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] [2024-11-27 19:55:41,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 19:55:41,894 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:55:41,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:41,894 INFO L85 PathProgramCache]: Analyzing trace with hash -466460771, now seen corresponding path program 1 times [2024-11-27 19:55:41,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:41,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283696261] [2024-11-27 19:55:41,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:41,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:41,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:42,160 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 19:55:42,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:42,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283696261] [2024-11-27 19:55:42,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283696261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:55:42,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:55:42,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:55:42,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343477979] [2024-11-27 19:55:42,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:55:42,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:55:42,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:42,167 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:55:42,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:55:42,167 INFO L87 Difference]: Start difference. First operand 94 states and 122 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 19:55:42,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:42,200 INFO L93 Difference]: Finished difference Result 180 states and 239 transitions. [2024-11-27 19:55:42,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:55:42,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 36 [2024-11-27 19:55:42,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:42,206 INFO L225 Difference]: With dead ends: 180 [2024-11-27 19:55:42,206 INFO L226 Difference]: Without dead ends: 94 [2024-11-27 19:55:42,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:55:42,210 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 100 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:42,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 120 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:55:42,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-27 19:55:42,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-27 19:55:42,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 69 states have (on average 1.3043478260869565) internal successors, (90), 78 states have internal predecessors, (90), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-27 19:55:42,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 121 transitions. [2024-11-27 19:55:42,239 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 121 transitions. Word has length 36 [2024-11-27 19:55:42,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:42,244 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 121 transitions. [2024-11-27 19:55:42,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 19:55:42,244 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 121 transitions. [2024-11-27 19:55:42,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-27 19:55:42,246 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:42,246 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] [2024-11-27 19:55:42,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 19:55:42,247 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:55:42,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:42,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1516327664, now seen corresponding path program 1 times [2024-11-27 19:55:42,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:42,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176382343] [2024-11-27 19:55:42,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:42,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:42,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:42,424 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 19:55:42,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:42,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176382343] [2024-11-27 19:55:42,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176382343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:55:42,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:55:42,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:55:42,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367057196] [2024-11-27 19:55:42,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:55:42,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:55:42,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:42,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:55:42,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:55:42,426 INFO L87 Difference]: Start difference. First operand 94 states and 121 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 19:55:42,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:42,452 INFO L93 Difference]: Finished difference Result 155 states and 199 transitions. [2024-11-27 19:55:42,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:55:42,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2024-11-27 19:55:42,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:42,454 INFO L225 Difference]: With dead ends: 155 [2024-11-27 19:55:42,455 INFO L226 Difference]: Without dead ends: 86 [2024-11-27 19:55:42,455 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:55:42,456 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 12 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:42,457 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 203 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:55:42,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-27 19:55:42,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-27 19:55:42,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 64 states have (on average 1.3125) internal successors, (84), 73 states have internal predecessors, (84), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 19:55:42,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 110 transitions. [2024-11-27 19:55:42,469 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 110 transitions. Word has length 41 [2024-11-27 19:55:42,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:42,469 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 110 transitions. [2024-11-27 19:55:42,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 19:55:42,470 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 110 transitions. [2024-11-27 19:55:42,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-27 19:55:42,471 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:42,472 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] [2024-11-27 19:55:42,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 19:55:42,472 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:55:42,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:42,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1456359157, now seen corresponding path program 1 times [2024-11-27 19:55:42,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:42,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914132234] [2024-11-27 19:55:42,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:42,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:42,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:42,555 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 19:55:42,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:42,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914132234] [2024-11-27 19:55:42,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914132234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:55:42,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:55:42,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:55:42,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831824807] [2024-11-27 19:55:42,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:55:42,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:55:42,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:42,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:55:42,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:55:42,558 INFO L87 Difference]: Start difference. First operand 86 states and 110 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 19:55:42,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:42,649 INFO L93 Difference]: Finished difference Result 214 states and 283 transitions. [2024-11-27 19:55:42,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:55:42,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2024-11-27 19:55:42,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:42,652 INFO L225 Difference]: With dead ends: 214 [2024-11-27 19:55:42,654 INFO L226 Difference]: Without dead ends: 136 [2024-11-27 19:55:42,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:55:42,659 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 81 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:42,659 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 202 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:55:42,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-11-27 19:55:42,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 134. [2024-11-27 19:55:42,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 100 states have (on average 1.29) internal successors, (129), 108 states have internal predecessors, (129), 18 states have call successors, (18), 15 states have call predecessors, (18), 15 states have return successors, (24), 16 states have call predecessors, (24), 18 states have call successors, (24) [2024-11-27 19:55:42,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 171 transitions. [2024-11-27 19:55:42,702 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 171 transitions. Word has length 45 [2024-11-27 19:55:42,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:42,702 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 171 transitions. [2024-11-27 19:55:42,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 19:55:42,702 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 171 transitions. [2024-11-27 19:55:42,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-27 19:55:42,704 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:42,707 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] [2024-11-27 19:55:42,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 19:55:42,707 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:55:42,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:42,708 INFO L85 PathProgramCache]: Analyzing trace with hash -11521724, now seen corresponding path program 1 times [2024-11-27 19:55:42,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:42,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978533372] [2024-11-27 19:55:42,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:42,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:42,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:42,929 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 19:55:42,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:42,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978533372] [2024-11-27 19:55:42,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978533372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:55:42,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:55:42,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:55:42,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50077710] [2024-11-27 19:55:42,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:55:42,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:55:42,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:42,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:55:42,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:55:42,933 INFO L87 Difference]: Start difference. First operand 134 states and 171 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 19:55:43,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:43,200 INFO L93 Difference]: Finished difference Result 483 states and 652 transitions. [2024-11-27 19:55:43,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:55:43,201 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 55 [2024-11-27 19:55:43,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:43,207 INFO L225 Difference]: With dead ends: 483 [2024-11-27 19:55:43,207 INFO L226 Difference]: Without dead ends: 357 [2024-11-27 19:55:43,208 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:55:43,212 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 148 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:43,213 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 385 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 19:55:43,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-11-27 19:55:43,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 348. [2024-11-27 19:55:43,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 259 states have (on average 1.2857142857142858) internal successors, (333), 276 states have internal predecessors, (333), 47 states have call successors, (47), 39 states have call predecessors, (47), 41 states have return successors, (81), 45 states have call predecessors, (81), 47 states have call successors, (81) [2024-11-27 19:55:43,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 461 transitions. [2024-11-27 19:55:43,310 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 461 transitions. Word has length 55 [2024-11-27 19:55:43,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:43,310 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 461 transitions. [2024-11-27 19:55:43,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 19:55:43,311 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 461 transitions. [2024-11-27 19:55:43,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-27 19:55:43,316 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:43,316 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] [2024-11-27 19:55:43,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 19:55:43,316 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:55:43,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:43,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1793916610, now seen corresponding path program 1 times [2024-11-27 19:55:43,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:43,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139005636] [2024-11-27 19:55:43,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:43,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:43,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:43,497 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 19:55:43,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:43,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139005636] [2024-11-27 19:55:43,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139005636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:55:43,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:55:43,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 19:55:43,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671556375] [2024-11-27 19:55:43,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:55:43,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 19:55:43,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:43,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 19:55:43,499 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:55:43,499 INFO L87 Difference]: Start difference. First operand 348 states and 461 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 19:55:43,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:43,580 INFO L93 Difference]: Finished difference Result 697 states and 950 transitions. [2024-11-27 19:55:43,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:55:43,583 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2024-11-27 19:55:43,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:43,590 INFO L225 Difference]: With dead ends: 697 [2024-11-27 19:55:43,590 INFO L226 Difference]: Without dead ends: 357 [2024-11-27 19:55:43,591 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:55:43,592 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 0 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:43,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 422 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:55:43,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-11-27 19:55:43,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2024-11-27 19:55:43,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 268 states have (on average 1.2761194029850746) internal successors, (342), 285 states have internal predecessors, (342), 47 states have call successors, (47), 39 states have call predecessors, (47), 41 states have return successors, (81), 45 states have call predecessors, (81), 47 states have call successors, (81) [2024-11-27 19:55:43,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 470 transitions. [2024-11-27 19:55:43,653 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 470 transitions. Word has length 55 [2024-11-27 19:55:43,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:43,653 INFO L471 AbstractCegarLoop]: Abstraction has 357 states and 470 transitions. [2024-11-27 19:55:43,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 19:55:43,653 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 470 transitions. [2024-11-27 19:55:43,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-27 19:55:43,657 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:43,658 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] [2024-11-27 19:55:43,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 19:55:43,658 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:55:43,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:43,659 INFO L85 PathProgramCache]: Analyzing trace with hash -2078348860, now seen corresponding path program 1 times [2024-11-27 19:55:43,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:43,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275666174] [2024-11-27 19:55:43,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:43,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:43,824 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 19:55:43,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:43,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275666174] [2024-11-27 19:55:43,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275666174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:55:43,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:55:43,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 19:55:43,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313358079] [2024-11-27 19:55:43,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:55:43,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 19:55:43,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:43,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 19:55:43,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:55:43,826 INFO L87 Difference]: Start difference. First operand 357 states and 470 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 19:55:43,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:43,919 INFO L93 Difference]: Finished difference Result 661 states and 902 transitions. [2024-11-27 19:55:43,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:55:43,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 55 [2024-11-27 19:55:43,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:43,923 INFO L225 Difference]: With dead ends: 661 [2024-11-27 19:55:43,924 INFO L226 Difference]: Without dead ends: 312 [2024-11-27 19:55:43,929 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:55:43,930 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 91 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:43,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 315 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:55:43,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2024-11-27 19:55:43,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2024-11-27 19:55:43,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 233 states have (on average 1.261802575107296) internal successors, (294), 248 states have internal predecessors, (294), 42 states have call successors, (42), 35 states have call predecessors, (42), 36 states have return successors, (67), 39 states have call predecessors, (67), 42 states have call successors, (67) [2024-11-27 19:55:43,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 403 transitions. [2024-11-27 19:55:43,981 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 403 transitions. Word has length 55 [2024-11-27 19:55:43,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:43,981 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 403 transitions. [2024-11-27 19:55:43,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 19:55:43,982 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 403 transitions. [2024-11-27 19:55:43,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-27 19:55:43,983 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:43,984 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] [2024-11-27 19:55:43,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 19:55:43,985 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:55:43,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:43,986 INFO L85 PathProgramCache]: Analyzing trace with hash -2092680232, now seen corresponding path program 1 times [2024-11-27 19:55:43,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:43,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665822966] [2024-11-27 19:55:43,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:43,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:44,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:44,220 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 19:55:44,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:44,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665822966] [2024-11-27 19:55:44,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665822966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:55:44,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:55:44,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 19:55:44,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898607211] [2024-11-27 19:55:44,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:55:44,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 19:55:44,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:44,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 19:55:44,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:55:44,225 INFO L87 Difference]: Start difference. First operand 312 states and 403 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-27 19:55:44,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:44,681 INFO L93 Difference]: Finished difference Result 654 states and 853 transitions. [2024-11-27 19:55:44,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 19:55:44,682 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 57 [2024-11-27 19:55:44,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:44,685 INFO L225 Difference]: With dead ends: 654 [2024-11-27 19:55:44,686 INFO L226 Difference]: Without dead ends: 350 [2024-11-27 19:55:44,690 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-27 19:55:44,691 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 136 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:44,692 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 432 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 19:55:44,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-27 19:55:44,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 348. [2024-11-27 19:55:44,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 259 states have (on average 1.2316602316602316) internal successors, (319), 274 states have internal predecessors, (319), 45 states have call successors, (45), 35 states have call predecessors, (45), 43 states have return successors, (80), 48 states have call predecessors, (80), 45 states have call successors, (80) [2024-11-27 19:55:44,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 444 transitions. [2024-11-27 19:55:44,750 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 444 transitions. Word has length 57 [2024-11-27 19:55:44,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:44,752 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 444 transitions. [2024-11-27 19:55:44,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-27 19:55:44,753 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 444 transitions. [2024-11-27 19:55:44,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-27 19:55:44,754 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:44,754 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:55:44,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 19:55:44,758 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:55:44,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:44,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1051591264, now seen corresponding path program 1 times [2024-11-27 19:55:44,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:44,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714615352] [2024-11-27 19:55:44,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:44,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:44,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:45,083 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 19:55:45,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:45,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714615352] [2024-11-27 19:55:45,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714615352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:55:45,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:55:45,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 19:55:45,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212526743] [2024-11-27 19:55:45,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:55:45,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 19:55:45,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:45,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 19:55:45,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-27 19:55:45,085 INFO L87 Difference]: Start difference. First operand 348 states and 444 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-27 19:55:45,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:45,790 INFO L93 Difference]: Finished difference Result 977 states and 1300 transitions. [2024-11-27 19:55:45,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 19:55:45,791 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 59 [2024-11-27 19:55:45,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:45,800 INFO L225 Difference]: With dead ends: 977 [2024-11-27 19:55:45,801 INFO L226 Difference]: Without dead ends: 691 [2024-11-27 19:55:45,803 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-27 19:55:45,804 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 329 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:45,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 549 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 19:55:45,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2024-11-27 19:55:45,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 618. [2024-11-27 19:55:45,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 457 states have (on average 1.2188183807439825) internal successors, (557), 486 states have internal predecessors, (557), 81 states have call successors, (81), 61 states have call predecessors, (81), 79 states have return successors, (142), 86 states have call predecessors, (142), 81 states have call successors, (142) [2024-11-27 19:55:45,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 780 transitions. [2024-11-27 19:55:45,930 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 780 transitions. Word has length 59 [2024-11-27 19:55:45,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:45,930 INFO L471 AbstractCegarLoop]: Abstraction has 618 states and 780 transitions. [2024-11-27 19:55:45,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-27 19:55:45,931 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 780 transitions. [2024-11-27 19:55:45,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-27 19:55:45,934 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:45,935 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:55:45,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 19:55:45,935 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:55:45,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:45,936 INFO L85 PathProgramCache]: Analyzing trace with hash -839061329, now seen corresponding path program 1 times [2024-11-27 19:55:45,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:45,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688319329] [2024-11-27 19:55:45,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:45,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:46,258 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 19 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-27 19:55:46,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:46,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688319329] [2024-11-27 19:55:46,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688319329] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:55:46,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674249661] [2024-11-27 19:55:46,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:46,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:55:46,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:46,262 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:55:46,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 19:55:46,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:46,410 INFO L256 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 19:55:46,417 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:46,696 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 25 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:55:46,697 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:55:47,053 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-27 19:55:47,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674249661] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:55:47,054 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:55:47,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 15 [2024-11-27 19:55:47,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018968343] [2024-11-27 19:55:47,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:55:47,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 19:55:47,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:47,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 19:55:47,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-27 19:55:47,057 INFO L87 Difference]: Start difference. First operand 618 states and 780 transitions. Second operand has 15 states, 15 states have (on average 10.133333333333333) internal successors, (152), 13 states have internal predecessors, (152), 7 states have call successors, (23), 4 states have call predecessors, (23), 8 states have return successors, (22), 10 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-27 19:55:47,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:47,898 INFO L93 Difference]: Finished difference Result 1354 states and 1778 transitions. [2024-11-27 19:55:47,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 19:55:47,899 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 10.133333333333333) internal successors, (152), 13 states have internal predecessors, (152), 7 states have call successors, (23), 4 states have call predecessors, (23), 8 states have return successors, (22), 10 states have call predecessors, (22), 7 states have call successors, (22) Word has length 107 [2024-11-27 19:55:47,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:47,907 INFO L225 Difference]: With dead ends: 1354 [2024-11-27 19:55:47,907 INFO L226 Difference]: Without dead ends: 796 [2024-11-27 19:55:47,911 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 211 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2024-11-27 19:55:47,913 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 344 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:47,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 1082 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 19:55:47,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2024-11-27 19:55:48,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 700. [2024-11-27 19:55:48,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 512 states have (on average 1.2109375) internal successors, (620), 550 states have internal predecessors, (620), 94 states have call successors, (94), 79 states have call predecessors, (94), 93 states have return successors, (138), 95 states have call predecessors, (138), 94 states have call successors, (138) [2024-11-27 19:55:48,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 852 transitions. [2024-11-27 19:55:48,054 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 852 transitions. Word has length 107 [2024-11-27 19:55:48,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:48,055 INFO L471 AbstractCegarLoop]: Abstraction has 700 states and 852 transitions. [2024-11-27 19:55:48,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 10.133333333333333) internal successors, (152), 13 states have internal predecessors, (152), 7 states have call successors, (23), 4 states have call predecessors, (23), 8 states have return successors, (22), 10 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-27 19:55:48,055 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 852 transitions. [2024-11-27 19:55:48,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-27 19:55:48,060 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:48,060 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:55:48,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 19:55:48,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-27 19:55:48,264 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:55:48,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:48,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1114515141, now seen corresponding path program 1 times [2024-11-27 19:55:48,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:48,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597178359] [2024-11-27 19:55:48,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:48,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:48,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:48,666 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 70 proven. 2 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-11-27 19:55:48,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:48,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597178359] [2024-11-27 19:55:48,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597178359] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:55:48,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42618047] [2024-11-27 19:55:48,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:48,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:55:48,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:48,670 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:55:48,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 19:55:48,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:48,837 INFO L256 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 19:55:48,843 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:49,162 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 143 proven. 3 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-27 19:55:49,162 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:55:49,965 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 74 proven. 41 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-27 19:55:49,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42618047] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:55:49,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:55:49,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 11] total 23 [2024-11-27 19:55:49,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407937567] [2024-11-27 19:55:49,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:55:49,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-27 19:55:49,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:49,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-27 19:55:49,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2024-11-27 19:55:49,970 INFO L87 Difference]: Start difference. First operand 700 states and 852 transitions. Second operand has 23 states, 23 states have (on average 9.26086956521739) internal successors, (213), 22 states have internal predecessors, (213), 9 states have call successors, (35), 7 states have call predecessors, (35), 10 states have return successors, (37), 8 states have call predecessors, (37), 9 states have call successors, (37) [2024-11-27 19:55:51,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:51,381 INFO L93 Difference]: Finished difference Result 1495 states and 1893 transitions. [2024-11-27 19:55:51,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 19:55:51,382 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 9.26086956521739) internal successors, (213), 22 states have internal predecessors, (213), 9 states have call successors, (35), 7 states have call predecessors, (35), 10 states have return successors, (37), 8 states have call predecessors, (37), 9 states have call successors, (37) Word has length 187 [2024-11-27 19:55:51,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:51,384 INFO L225 Difference]: With dead ends: 1495 [2024-11-27 19:55:51,385 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 19:55:51,389 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 362 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=253, Invalid=869, Unknown=0, NotChecked=0, Total=1122 [2024-11-27 19:55:51,390 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 463 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 1468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:51,391 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 936 Invalid, 1468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 19:55:51,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 19:55:51,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 19:55:51,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:55:51,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 19:55:51,393 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 187 [2024-11-27 19:55:51,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:51,393 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 19:55:51,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.26086956521739) internal successors, (213), 22 states have internal predecessors, (213), 9 states have call successors, (35), 7 states have call predecessors, (35), 10 states have return successors, (37), 8 states have call predecessors, (37), 9 states have call successors, (37) [2024-11-27 19:55:51,393 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 19:55:51,393 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 19:55:51,396 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 19:55:51,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 19:55:51,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-27 19:55:51,603 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:55:51,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-27 19:55:58,360 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 19:55:58,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 07:55:58 BoogieIcfgContainer [2024-11-27 19:55:58,386 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 19:55:58,387 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 19:55:58,389 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 19:55:58,390 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 19:55:58,390 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:55:41" (3/4) ... [2024-11-27 19:55:58,393 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 19:55:58,399 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-27 19:55:58,399 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-27 19:55:58,399 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-27 19:55:58,400 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-27 19:55:58,400 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-27 19:55:58,400 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-27 19:55:58,400 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-27 19:55:58,400 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2024-11-27 19:55:58,400 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-11-27 19:55:58,410 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-27 19:55:58,411 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-27 19:55:58,412 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-27 19:55:58,412 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 19:55:58,413 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 19:55:58,549 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 19:55:58,550 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 19:55:58,550 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 19:55:58,551 INFO L158 Benchmark]: Toolchain (without parser) took 18643.74ms. Allocated memory was 142.6MB in the beginning and 226.5MB in the end (delta: 83.9MB). Free memory was 116.6MB in the beginning and 131.3MB in the end (delta: -14.6MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. [2024-11-27 19:55:58,551 INFO L158 Benchmark]: CDTParser took 0.67ms. Allocated memory is still 117.4MB. Free memory was 73.7MB in the beginning and 73.6MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:55:58,552 INFO L158 Benchmark]: CACSL2BoogieTranslator took 655.01ms. Allocated memory is still 142.6MB. Free memory was 116.4MB in the beginning and 97.4MB in the end (delta: 19.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 19:55:58,552 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.98ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 95.2MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 19:55:58,552 INFO L158 Benchmark]: Boogie Preprocessor took 49.00ms. Allocated memory is still 142.6MB. Free memory was 95.2MB in the beginning and 93.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:55:58,553 INFO L158 Benchmark]: RCFGBuilder took 533.20ms. Allocated memory is still 142.6MB. Free memory was 93.3MB in the beginning and 75.7MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 19:55:58,553 INFO L158 Benchmark]: TraceAbstraction took 17155.79ms. Allocated memory was 142.6MB in the beginning and 226.5MB in the end (delta: 83.9MB). Free memory was 75.0MB in the beginning and 139.6MB in the end (delta: -64.6MB). Peak memory consumption was 102.6MB. Max. memory is 16.1GB. [2024-11-27 19:55:58,554 INFO L158 Benchmark]: Witness Printer took 162.80ms. Allocated memory is still 226.5MB. Free memory was 139.6MB in the beginning and 131.3MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 19:55:58,555 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67ms. Allocated memory is still 117.4MB. Free memory was 73.7MB in the beginning and 73.6MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 655.01ms. Allocated memory is still 142.6MB. Free memory was 116.4MB in the beginning and 97.4MB in the end (delta: 19.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.98ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 95.2MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.00ms. Allocated memory is still 142.6MB. Free memory was 95.2MB in the beginning and 93.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 533.20ms. Allocated memory is still 142.6MB. Free memory was 93.3MB in the beginning and 75.7MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 17155.79ms. Allocated memory was 142.6MB in the beginning and 226.5MB in the end (delta: 83.9MB). Free memory was 75.0MB in the beginning and 139.6MB in the end (delta: -64.6MB). Peak memory consumption was 102.6MB. Max. memory is 16.1GB. * Witness Printer took 162.80ms. Allocated memory is still 226.5MB. Free memory was 139.6MB in the beginning and 131.3MB in the end (delta: 8.3MB). 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,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [415] - GenericResultAtLocation [Line: 653]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [653] - GenericResultAtLocation [Line: 691]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [691] - GenericResultAtLocation [Line: 759]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [759] - GenericResultAtLocation [Line: 810]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [810] - GenericResultAtLocation [Line: 907]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [907] - GenericResultAtLocation [Line: 916]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [916] * 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: 912]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.3s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1728 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1704 mSDsluCounter, 4777 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3348 mSDsCounter, 458 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2181 IncrementalHoareTripleChecker+Invalid, 2639 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 458 mSolverCounterUnsat, 1429 mSDtfsCounter, 2181 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 704 GetRequests, 602 SyntacticMatches, 7 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=700occurred in iteration=10, 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: 0.7s AutomataMinimizationTime, 11 MinimizatonAttempts, 182 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 1023 NumberOfCodeBlocks, 1023 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1302 ConstructedInterpolants, 0 QuantifiedInterpolants, 2526 SizeOfPredicates, 2 NumberOfNonLiveVariables, 898 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 15 InterpolantComputations, 9 PerfectInterpolantSequences, 634/720 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: 705]: Loop Invariant Derived loop invariant: (((((((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0)) || (((((waterLevel <= 1) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) || ((((2 == waterLevel) && (1 == systemActive)) && (splverifierCounter == 0)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 704]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 822]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-11-27 19:55:58,578 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c00e63-4b0a-44e7-b772-d13b1a4eeeaa/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE