./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product64.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_9e70405c-96b5-4f84-b474-d92bc2f43f33/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70405c-96b5-4f84-b474-d92bc2f43f33/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_9e70405c-96b5-4f84-b474-d92bc2f43f33/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70405c-96b5-4f84-b474-d92bc2f43f33/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70405c-96b5-4f84-b474-d92bc2f43f33/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_9e70405c-96b5-4f84-b474-d92bc2f43f33/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 59d05b45c2855b02eb92cf6428285b3e4820a09d46d6a6d0a0748347de3adbb6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:30:30,467 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:30:30,590 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70405c-96b5-4f84-b474-d92bc2f43f33/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:30:30,598 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:30:30,599 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:30:30,649 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:30:30,650 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:30:30,651 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:30:30,651 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:30:30,652 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:30:30,653 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:30:30,653 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:30:30,654 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:30:30,654 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:30:30,654 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:30:30,655 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:30:30,655 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:30:30,655 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:30:30,656 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:30:30,656 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:30:30,656 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:30:30,657 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:30:30,657 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:30:30,657 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:30:30,657 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:30:30,657 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:30:30,657 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:30:30,658 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:30:30,658 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:30:30,658 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:30:30,658 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:30:30,658 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:30:30,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:30:30,660 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:30:30,660 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:30:30,660 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:30:30,660 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:30:30,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:30:30,660 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:30:30,660 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:30:30,660 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:30:30,660 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:30:30,661 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:30:30,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:30:30,661 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:30:30,661 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:30:30,661 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:30:30,661 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:30:30,661 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_9e70405c-96b5-4f84-b474-d92bc2f43f33/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 -> 59d05b45c2855b02eb92cf6428285b3e4820a09d46d6a6d0a0748347de3adbb6 [2024-11-28 03:30:31,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:30:31,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:30:31,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:30:31,038 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:30:31,038 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:30:31,041 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70405c-96b5-4f84-b474-d92bc2f43f33/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c [2024-11-28 03:30:34,340 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70405c-96b5-4f84-b474-d92bc2f43f33/bin/uautomizer-verify-aQ6SnzHsRB/data/8b58f96c9/6a67c9c92fb54e68ac33a4cfa109679c/FLAGdbc2b756e [2024-11-28 03:30:34,901 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:30:34,906 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70405c-96b5-4f84-b474-d92bc2f43f33/sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c [2024-11-28 03:30:34,940 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70405c-96b5-4f84-b474-d92bc2f43f33/bin/uautomizer-verify-aQ6SnzHsRB/data/8b58f96c9/6a67c9c92fb54e68ac33a4cfa109679c/FLAGdbc2b756e [2024-11-28 03:30:34,969 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70405c-96b5-4f84-b474-d92bc2f43f33/bin/uautomizer-verify-aQ6SnzHsRB/data/8b58f96c9/6a67c9c92fb54e68ac33a4cfa109679c [2024-11-28 03:30:34,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:30:34,974 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:30:34,978 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:30:34,978 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:30:34,984 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:30:34,985 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:30:34" (1/1) ... [2024-11-28 03:30:34,987 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14f2e4aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:34, skipping insertion in model container [2024-11-28 03:30:34,987 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:30:34" (1/1) ... [2024-11-28 03:30:35,044 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:30:35,376 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_9e70405c-96b5-4f84-b474-d92bc2f43f33/sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c[6823,6836] [2024-11-28 03:30:35,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:30:35,543 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:30:35,555 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2024-11-28 03:30:35,556 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [87] [2024-11-28 03:30:35,557 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [363] [2024-11-28 03:30:35,557 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [435] [2024-11-28 03:30:35,558 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [444] [2024-11-28 03:30:35,558 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [483] [2024-11-28 03:30:35,559 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [587] [2024-11-28 03:30:35,559 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [684] [2024-11-28 03:30:35,600 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_9e70405c-96b5-4f84-b474-d92bc2f43f33/sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c[6823,6836] [2024-11-28 03:30:35,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:30:35,731 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:30:35,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:35 WrapperNode [2024-11-28 03:30:35,733 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:30:35,736 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:30:35,736 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:30:35,736 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:30:35,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:35" (1/1) ... [2024-11-28 03:30:35,765 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:35" (1/1) ... [2024-11-28 03:30:35,804 INFO L138 Inliner]: procedures = 60, calls = 108, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 230 [2024-11-28 03:30:35,804 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:30:35,805 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:30:35,805 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:30:35,805 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:30:35,816 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:35" (1/1) ... [2024-11-28 03:30:35,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:35" (1/1) ... [2024-11-28 03:30:35,821 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:35" (1/1) ... [2024-11-28 03:30:35,840 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]. [2024-11-28 03:30:35,840 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:35" (1/1) ... [2024-11-28 03:30:35,840 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:35" (1/1) ... [2024-11-28 03:30:35,846 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:35" (1/1) ... [2024-11-28 03:30:35,848 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:35" (1/1) ... [2024-11-28 03:30:35,853 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:35" (1/1) ... [2024-11-28 03:30:35,854 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:35" (1/1) ... [2024-11-28 03:30:35,856 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:35" (1/1) ... [2024-11-28 03:30:35,859 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:30:35,859 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:30:35,860 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:30:35,860 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:30:35,861 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:35" (1/1) ... [2024-11-28 03:30:35,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:30:35,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70405c-96b5-4f84-b474-d92bc2f43f33/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:30:35,907 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70405c-96b5-4f84-b474-d92bc2f43f33/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:30:35,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70405c-96b5-4f84-b474-d92bc2f43f33/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:30:35,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:30:35,947 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-28 03:30:35,947 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-28 03:30:35,947 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-28 03:30:35,948 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-28 03:30:35,948 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-28 03:30:35,948 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-28 03:30:35,948 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-28 03:30:35,949 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-28 03:30:35,949 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-28 03:30:35,949 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-28 03:30:35,949 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-28 03:30:35,950 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-28 03:30:35,950 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-11-28 03:30:35,950 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-11-28 03:30:35,950 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-11-28 03:30:35,950 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-11-28 03:30:35,950 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-28 03:30:35,950 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-28 03:30:35,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:30:35,950 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-28 03:30:35,950 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-28 03:30:35,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:30:35,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:30:36,054 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:30:36,056 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:30:36,410 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-11-28 03:30:36,410 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:30:36,425 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:30:36,425 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 03:30:36,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:30:36 BoogieIcfgContainer [2024-11-28 03:30:36,426 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:30:36,429 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:30:36,429 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:30:36,435 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:30:36,436 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:30:34" (1/3) ... [2024-11-28 03:30:36,436 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c2a5260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:30:36, skipping insertion in model container [2024-11-28 03:30:36,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:35" (2/3) ... [2024-11-28 03:30:36,437 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c2a5260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:30:36, skipping insertion in model container [2024-11-28 03:30:36,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:30:36" (3/3) ... [2024-11-28 03:30:36,439 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product64.cil.c [2024-11-28 03:30:36,457 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:30:36,459 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec2_product64.cil.c that has 11 procedures, 113 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-28 03:30:36,528 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:30:36,543 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;@69c3bc4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:30:36,543 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:30:36,548 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 82 states have (on average 1.3780487804878048) internal successors, (113), 93 states have internal predecessors, (113), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 03:30:36,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-28 03:30:36,557 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:30:36,558 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:36,559 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:30:36,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:36,566 INFO L85 PathProgramCache]: Analyzing trace with hash -368853524, now seen corresponding path program 1 times [2024-11-28 03:30:36,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:36,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684177446] [2024-11-28 03:30:36,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:36,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:36,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:30:36,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:36,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684177446] [2024-11-28 03:30:36,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684177446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:30:36,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:30:36,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:30:36,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326099909] [2024-11-28 03:30:36,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:30:36,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:30:36,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:37,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:30:37,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:30:37,020 INFO L87 Difference]: Start difference. First operand has 113 states, 82 states have (on average 1.3780487804878048) internal successors, (113), 93 states have internal predecessors, (113), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 03:30:37,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:30:37,092 INFO L93 Difference]: Finished difference Result 205 states and 276 transitions. [2024-11-28 03:30:37,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:30:37,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-28 03:30:37,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:30:37,107 INFO L225 Difference]: With dead ends: 205 [2024-11-28 03:30:37,107 INFO L226 Difference]: Without dead ends: 96 [2024-11-28 03:30:37,113 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 [2024-11-28 03:30:37,120 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 17 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 235 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 [2024-11-28 03:30:37,121 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 235 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:30:37,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-28 03:30:37,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-28 03:30:37,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 70 states have (on average 1.3285714285714285) internal successors, (93), 80 states have internal predecessors, (93), 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) [2024-11-28 03:30:37,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 125 transitions. [2024-11-28 03:30:37,180 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 125 transitions. Word has length 25 [2024-11-28 03:30:37,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:30:37,182 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 125 transitions. [2024-11-28 03:30:37,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 03:30:37,183 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 125 transitions. [2024-11-28 03:30:37,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-28 03:30:37,185 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:30:37,185 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:37,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:30:37,186 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:30:37,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:37,187 INFO L85 PathProgramCache]: Analyzing trace with hash -366028643, now seen corresponding path program 1 times [2024-11-28 03:30:37,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:37,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038470745] [2024-11-28 03:30:37,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:37,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:37,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:37,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:30:37,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:37,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038470745] [2024-11-28 03:30:37,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038470745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:30:37,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:30:37,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:30:37,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507075618] [2024-11-28 03:30:37,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:30:37,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:30:37,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:37,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:30:37,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:30:37,457 INFO L87 Difference]: Start difference. First operand 96 states and 125 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 03:30:37,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:30:37,581 INFO L93 Difference]: Finished difference Result 226 states and 298 transitions. [2024-11-28 03:30:37,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:30:37,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2024-11-28 03:30:37,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:30:37,584 INFO L225 Difference]: With dead ends: 226 [2024-11-28 03:30:37,584 INFO L226 Difference]: Without dead ends: 138 [2024-11-28 03:30:37,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:30:37,586 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 118 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:30:37,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 460 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:30:37,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-28 03:30:37,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 135. [2024-11-28 03:30:37,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 99 states have (on average 1.3535353535353536) internal successors, (134), 112 states have internal predecessors, (134), 21 states have call successors, (21), 14 states have call predecessors, (21), 14 states have return successors, (22), 15 states have call predecessors, (22), 21 states have call successors, (22) [2024-11-28 03:30:37,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 177 transitions. [2024-11-28 03:30:37,633 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 177 transitions. Word has length 30 [2024-11-28 03:30:37,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:30:37,634 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 177 transitions. [2024-11-28 03:30:37,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 03:30:37,638 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 177 transitions. [2024-11-28 03:30:37,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-28 03:30:37,640 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:30:37,640 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:37,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:30:37,640 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:30:37,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:37,641 INFO L85 PathProgramCache]: Analyzing trace with hash 638056986, now seen corresponding path program 1 times [2024-11-28 03:30:37,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:37,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142637395] [2024-11-28 03:30:37,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:37,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:37,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:30:37,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:37,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142637395] [2024-11-28 03:30:37,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142637395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:30:37,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:30:37,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:30:37,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961299248] [2024-11-28 03:30:37,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:30:37,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:30:37,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:37,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:30:37,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:30:37,909 INFO L87 Difference]: Start difference. First operand 135 states and 177 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 03:30:38,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:30:38,093 INFO L93 Difference]: Finished difference Result 306 states and 412 transitions. [2024-11-28 03:30:38,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:30:38,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2024-11-28 03:30:38,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:30:38,099 INFO L225 Difference]: With dead ends: 306 [2024-11-28 03:30:38,101 INFO L226 Difference]: Without dead ends: 179 [2024-11-28 03:30:38,102 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:30:38,103 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 86 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:30:38,106 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 434 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:30:38,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-28 03:30:38,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 178. [2024-11-28 03:30:38,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 131 states have (on average 1.282442748091603) internal successors, (168), 143 states have internal predecessors, (168), 25 states have call successors, (25), 21 states have call predecessors, (25), 21 states have return successors, (33), 23 states have call predecessors, (33), 25 states have call successors, (33) [2024-11-28 03:30:38,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 226 transitions. [2024-11-28 03:30:38,159 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 226 transitions. Word has length 33 [2024-11-28 03:30:38,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:30:38,159 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 226 transitions. [2024-11-28 03:30:38,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 03:30:38,161 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 226 transitions. [2024-11-28 03:30:38,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-28 03:30:38,166 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:30:38,166 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:38,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:30:38,166 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:30:38,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:38,167 INFO L85 PathProgramCache]: Analyzing trace with hash -2054681134, now seen corresponding path program 1 times [2024-11-28 03:30:38,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:38,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060376110] [2024-11-28 03:30:38,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:38,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:38,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:38,356 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 03:30:38,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:38,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060376110] [2024-11-28 03:30:38,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060376110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:30:38,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:30:38,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:30:38,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268784360] [2024-11-28 03:30:38,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:30:38,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:30:38,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:38,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:30:38,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:30:38,359 INFO L87 Difference]: Start difference. First operand 178 states and 226 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:30:38,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:30:38,406 INFO L93 Difference]: Finished difference Result 351 states and 462 transitions. [2024-11-28 03:30:38,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:30:38,407 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2024-11-28 03:30:38,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:30:38,409 INFO L225 Difference]: With dead ends: 351 [2024-11-28 03:30:38,409 INFO L226 Difference]: Without dead ends: 181 [2024-11-28 03:30:38,410 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 [2024-11-28 03:30:38,413 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 0 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 482 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 [2024-11-28 03:30:38,413 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 482 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:30:38,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-28 03:30:38,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2024-11-28 03:30:38,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 134 states have (on average 1.2761194029850746) internal successors, (171), 146 states have internal predecessors, (171), 25 states have call successors, (25), 21 states have call predecessors, (25), 21 states have return successors, (33), 23 states have call predecessors, (33), 25 states have call successors, (33) [2024-11-28 03:30:38,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 229 transitions. [2024-11-28 03:30:38,450 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 229 transitions. Word has length 61 [2024-11-28 03:30:38,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:30:38,451 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 229 transitions. [2024-11-28 03:30:38,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:30:38,451 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 229 transitions. [2024-11-28 03:30:38,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-28 03:30:38,459 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:30:38,459 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:38,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:30:38,460 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:30:38,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:38,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1039567689, now seen corresponding path program 1 times [2024-11-28 03:30:38,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:38,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013643185] [2024-11-28 03:30:38,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:38,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:38,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:38,557 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 03:30:38,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:38,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013643185] [2024-11-28 03:30:38,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013643185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:30:38,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:30:38,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:30:38,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529358146] [2024-11-28 03:30:38,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:30:38,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:30:38,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:38,559 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:30:38,559 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:30:38,560 INFO L87 Difference]: Start difference. First operand 181 states and 229 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:30:38,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:30:38,619 INFO L93 Difference]: Finished difference Result 356 states and 452 transitions. [2024-11-28 03:30:38,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:30:38,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 64 [2024-11-28 03:30:38,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:30:38,622 INFO L225 Difference]: With dead ends: 356 [2024-11-28 03:30:38,624 INFO L226 Difference]: Without dead ends: 183 [2024-11-28 03:30:38,625 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 [2024-11-28 03:30:38,626 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 36 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:30:38,629 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 269 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:30:38,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-28 03:30:38,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 181. [2024-11-28 03:30:38,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 134 states have (on average 1.2686567164179106) internal successors, (170), 146 states have internal predecessors, (170), 25 states have call successors, (25), 21 states have call predecessors, (25), 21 states have return successors, (31), 23 states have call predecessors, (31), 25 states have call successors, (31) [2024-11-28 03:30:38,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 226 transitions. [2024-11-28 03:30:38,667 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 226 transitions. Word has length 64 [2024-11-28 03:30:38,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:30:38,670 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 226 transitions. [2024-11-28 03:30:38,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:30:38,670 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 226 transitions. [2024-11-28 03:30:38,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-28 03:30:38,672 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:30:38,672 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:38,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:30:38,672 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:30:38,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:38,673 INFO L85 PathProgramCache]: Analyzing trace with hash -2127067692, now seen corresponding path program 1 times [2024-11-28 03:30:38,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:38,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58779044] [2024-11-28 03:30:38,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:38,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:38,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:38,826 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 03:30:38,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:38,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58779044] [2024-11-28 03:30:38,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58779044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:30:38,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:30:38,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:30:38,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631420058] [2024-11-28 03:30:38,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:30:38,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:30:38,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:38,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:30:38,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:30:38,831 INFO L87 Difference]: Start difference. First operand 181 states and 226 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:30:38,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:30:38,877 INFO L93 Difference]: Finished difference Result 356 states and 459 transitions. [2024-11-28 03:30:38,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:30:38,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2024-11-28 03:30:38,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:30:38,881 INFO L225 Difference]: With dead ends: 356 [2024-11-28 03:30:38,881 INFO L226 Difference]: Without dead ends: 183 [2024-11-28 03:30:38,882 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:30:38,886 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:30:38,887 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 363 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:30:38,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-28 03:30:38,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2024-11-28 03:30:38,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 136 states have (on average 1.2647058823529411) internal successors, (172), 148 states have internal predecessors, (172), 25 states have call successors, (25), 21 states have call predecessors, (25), 21 states have return successors, (31), 23 states have call predecessors, (31), 25 states have call successors, (31) [2024-11-28 03:30:38,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 228 transitions. [2024-11-28 03:30:38,918 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 228 transitions. Word has length 61 [2024-11-28 03:30:38,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:30:38,919 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 228 transitions. [2024-11-28 03:30:38,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:30:38,919 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 228 transitions. [2024-11-28 03:30:38,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-28 03:30:38,920 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:30:38,921 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:38,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:30:38,921 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:30:38,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:38,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1323894102, now seen corresponding path program 1 times [2024-11-28 03:30:38,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:38,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117511104] [2024-11-28 03:30:38,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:38,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:39,078 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 03:30:39,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:39,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117511104] [2024-11-28 03:30:39,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117511104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:30:39,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:30:39,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:30:39,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846961396] [2024-11-28 03:30:39,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:30:39,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:30:39,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:39,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:30:39,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:30:39,082 INFO L87 Difference]: Start difference. First operand 183 states and 228 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-28 03:30:39,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:30:39,278 INFO L93 Difference]: Finished difference Result 600 states and 773 transitions. [2024-11-28 03:30:39,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:30:39,279 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (6), 2 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 61 [2024-11-28 03:30:39,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:30:39,282 INFO L225 Difference]: With dead ends: 600 [2024-11-28 03:30:39,282 INFO L226 Difference]: Without dead ends: 425 [2024-11-28 03:30:39,283 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:30:39,284 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 155 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:30:39,284 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 405 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:30:39,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2024-11-28 03:30:39,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 416. [2024-11-28 03:30:39,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 309 states have (on average 1.249190938511327) internal successors, (386), 332 states have internal predecessors, (386), 56 states have call successors, (56), 49 states have call predecessors, (56), 50 states have return successors, (82), 53 states have call predecessors, (82), 56 states have call successors, (82) [2024-11-28 03:30:39,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 524 transitions. [2024-11-28 03:30:39,344 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 524 transitions. Word has length 61 [2024-11-28 03:30:39,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:30:39,345 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 524 transitions. [2024-11-28 03:30:39,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-28 03:30:39,345 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 524 transitions. [2024-11-28 03:30:39,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-28 03:30:39,347 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:30:39,347 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:39,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:30:39,348 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:30:39,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:39,348 INFO L85 PathProgramCache]: Analyzing trace with hash 2060728368, now seen corresponding path program 1 times [2024-11-28 03:30:39,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:39,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564081853] [2024-11-28 03:30:39,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:39,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:39,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:39,626 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 03:30:39,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:39,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564081853] [2024-11-28 03:30:39,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564081853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:30:39,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:30:39,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:30:39,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317729246] [2024-11-28 03:30:39,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:30:39,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:30:39,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:39,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:30:39,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:30:39,628 INFO L87 Difference]: Start difference. First operand 416 states and 524 transitions. Second operand has 10 states, 10 states have (on average 5.0) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:30:40,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:30:40,091 INFO L93 Difference]: Finished difference Result 1209 states and 1579 transitions. [2024-11-28 03:30:40,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:30:40,092 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) Word has length 65 [2024-11-28 03:30:40,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:30:40,102 INFO L225 Difference]: With dead ends: 1209 [2024-11-28 03:30:40,102 INFO L226 Difference]: Without dead ends: 801 [2024-11-28 03:30:40,108 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:30:40,109 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 104 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:30:40,109 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 875 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:30:40,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2024-11-28 03:30:40,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 801. [2024-11-28 03:30:40,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 588 states have (on average 1.2261904761904763) internal successors, (721), 631 states have internal predecessors, (721), 112 states have call successors, (112), 98 states have call predecessors, (112), 100 states have return successors, (176), 106 states have call predecessors, (176), 112 states have call successors, (176) [2024-11-28 03:30:40,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1009 transitions. [2024-11-28 03:30:40,245 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1009 transitions. Word has length 65 [2024-11-28 03:30:40,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:30:40,247 INFO L471 AbstractCegarLoop]: Abstraction has 801 states and 1009 transitions. [2024-11-28 03:30:40,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:30:40,248 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1009 transitions. [2024-11-28 03:30:40,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-28 03:30:40,260 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:30:40,260 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1] [2024-11-28 03:30:40,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:30:40,261 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:30:40,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:40,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1675325812, now seen corresponding path program 1 times [2024-11-28 03:30:40,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:40,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108898877] [2024-11-28 03:30:40,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:40,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:40,551 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-28 03:30:40,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:40,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108898877] [2024-11-28 03:30:40,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108898877] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:30:40,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630094791] [2024-11-28 03:30:40,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:40,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:30:40,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70405c-96b5-4f84-b474-d92bc2f43f33/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:30:40,559 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70405c-96b5-4f84-b474-d92bc2f43f33/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:30:40,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70405c-96b5-4f84-b474-d92bc2f43f33/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:30:40,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:40,763 INFO L256 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:30:40,783 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:30:40,976 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 03:30:40,977 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:30:40,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630094791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:30:40,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:30:40,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2024-11-28 03:30:40,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046845853] [2024-11-28 03:30:40,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:30:40,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:30:40,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:40,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:30:40,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:30:40,981 INFO L87 Difference]: Start difference. First operand 801 states and 1009 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-28 03:30:41,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:30:41,773 INFO L93 Difference]: Finished difference Result 1738 states and 2254 transitions. [2024-11-28 03:30:41,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:30:41,774 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 127 [2024-11-28 03:30:41,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:30:41,785 INFO L225 Difference]: With dead ends: 1738 [2024-11-28 03:30:41,785 INFO L226 Difference]: Without dead ends: 1107 [2024-11-28 03:30:41,789 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:30:41,790 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 161 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:30:41,790 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 363 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:30:41,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2024-11-28 03:30:42,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 1105. [2024-11-28 03:30:42,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1105 states, 808 states have (on average 1.2079207920792079) internal successors, (976), 865 states have internal predecessors, (976), 154 states have call successors, (154), 128 states have call predecessors, (154), 142 states have return successors, (285), 156 states have call predecessors, (285), 154 states have call successors, (285) [2024-11-28 03:30:42,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 1415 transitions. [2024-11-28 03:30:42,034 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 1415 transitions. Word has length 127 [2024-11-28 03:30:42,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:30:42,035 INFO L471 AbstractCegarLoop]: Abstraction has 1105 states and 1415 transitions. [2024-11-28 03:30:42,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-28 03:30:42,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 1415 transitions. [2024-11-28 03:30:42,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 03:30:42,046 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:30:42,046 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:42,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70405c-96b5-4f84-b474-d92bc2f43f33/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:30:42,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70405c-96b5-4f84-b474-d92bc2f43f33/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:30:42,252 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:30:42,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:42,253 INFO L85 PathProgramCache]: Analyzing trace with hash 572222898, now seen corresponding path program 1 times [2024-11-28 03:30:42,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:42,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062418759] [2024-11-28 03:30:42,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:42,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:42,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:42,687 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-28 03:30:42,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:42,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062418759] [2024-11-28 03:30:42,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062418759] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:30:42,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94253194] [2024-11-28 03:30:42,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:42,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:30:42,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70405c-96b5-4f84-b474-d92bc2f43f33/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:30:42,692 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70405c-96b5-4f84-b474-d92bc2f43f33/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:30:42,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70405c-96b5-4f84-b474-d92bc2f43f33/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:30:42,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:42,858 INFO L256 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 03:30:42,866 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:30:43,130 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 03:30:43,130 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:30:43,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94253194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:30:43,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:30:43,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-11-28 03:30:43,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527296772] [2024-11-28 03:30:43,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:30:43,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:30:43,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:43,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:30:43,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:30:43,134 INFO L87 Difference]: Start difference. First operand 1105 states and 1415 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 6 states have internal predecessors, (89), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-28 03:30:43,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:30:43,582 INFO L93 Difference]: Finished difference Result 2366 states and 3017 transitions. [2024-11-28 03:30:43,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:30:43,583 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 6 states have internal predecessors, (89), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) Word has length 123 [2024-11-28 03:30:43,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:30:43,586 INFO L225 Difference]: With dead ends: 2366 [2024-11-28 03:30:43,587 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 03:30:43,595 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:30:43,596 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 71 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:30:43,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 905 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:30:43,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 03:30:43,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 03:30:43,598 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) [2024-11-28 03:30:43,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 03:30:43,599 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 123 [2024-11-28 03:30:43,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:30:43,599 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 03:30:43,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 6 states have internal predecessors, (89), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-28 03:30:43,600 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 03:30:43,600 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 03:30:43,603 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 03:30:43,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70405c-96b5-4f84-b474-d92bc2f43f33/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:30:43,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70405c-96b5-4f84-b474-d92bc2f43f33/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 03:30:43,811 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:43,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 03:30:51,227 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:30:51,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:30:51 BoogieIcfgContainer [2024-11-28 03:30:51,242 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:30:51,243 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:30:51,243 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:30:51,243 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:30:51,244 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:30:36" (3/4) ... [2024-11-28 03:30:51,246 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 03:30:51,251 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-28 03:30:51,251 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-28 03:30:51,252 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-28 03:30:51,252 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-28 03:30:51,252 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-11-28 03:30:51,252 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-28 03:30:51,252 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-28 03:30:51,252 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-28 03:30:51,252 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-11-28 03:30:51,252 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-11-28 03:30:51,258 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-28 03:30:51,259 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-28 03:30:51,259 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-28 03:30:51,260 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 03:30:51,260 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 03:30:51,362 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70405c-96b5-4f84-b474-d92bc2f43f33/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:30:51,363 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70405c-96b5-4f84-b474-d92bc2f43f33/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:30:51,363 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:30:51,364 INFO L158 Benchmark]: Toolchain (without parser) took 16389.87ms. Allocated memory was 167.8MB in the beginning and 503.3MB in the end (delta: 335.5MB). Free memory was 129.5MB in the beginning and 262.0MB in the end (delta: -132.5MB). Peak memory consumption was 201.4MB. Max. memory is 16.1GB. [2024-11-28 03:30:51,364 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 167.8MB. Free memory is still 102.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:30:51,364 INFO L158 Benchmark]: CACSL2BoogieTranslator took 755.79ms. Allocated memory is still 167.8MB. Free memory was 129.5MB in the beginning and 109.9MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:30:51,364 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.79ms. Allocated memory is still 167.8MB. Free memory was 109.9MB in the beginning and 107.9MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:30:51,365 INFO L158 Benchmark]: Boogie Preprocessor took 53.86ms. Allocated memory is still 167.8MB. Free memory was 107.9MB in the beginning and 105.9MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:30:51,366 INFO L158 Benchmark]: RCFGBuilder took 566.29ms. Allocated memory is still 167.8MB. Free memory was 105.9MB in the beginning and 87.5MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:30:51,366 INFO L158 Benchmark]: TraceAbstraction took 14812.79ms. Allocated memory was 167.8MB in the beginning and 503.3MB in the end (delta: 335.5MB). Free memory was 86.8MB in the beginning and 270.1MB in the end (delta: -183.3MB). Peak memory consumption was 251.7MB. Max. memory is 16.1GB. [2024-11-28 03:30:51,367 INFO L158 Benchmark]: Witness Printer took 120.33ms. Allocated memory is still 503.3MB. Free memory was 270.1MB in the beginning and 262.0MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:30:51,370 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 167.8MB. Free memory is still 102.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 755.79ms. Allocated memory is still 167.8MB. Free memory was 129.5MB in the beginning and 109.9MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.79ms. Allocated memory is still 167.8MB. Free memory was 109.9MB in the beginning and 107.9MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 53.86ms. Allocated memory is still 167.8MB. Free memory was 107.9MB in the beginning and 105.9MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 566.29ms. Allocated memory is still 167.8MB. Free memory was 105.9MB in the beginning and 87.5MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 14812.79ms. Allocated memory was 167.8MB in the beginning and 503.3MB in the end (delta: 335.5MB). Free memory was 86.8MB in the beginning and 270.1MB in the end (delta: -183.3MB). Peak memory consumption was 251.7MB. Max. memory is 16.1GB. * Witness Printer took 120.33ms. Allocated memory is still 503.3MB. Free memory was 270.1MB in the beginning and 262.0MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [87] - GenericResultAtLocation [Line: 363]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [363] - GenericResultAtLocation [Line: 435]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [435] - GenericResultAtLocation [Line: 444]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [444] - GenericResultAtLocation [Line: 483]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [483] - GenericResultAtLocation [Line: 587]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [587] - GenericResultAtLocation [Line: 684]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [684] * 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: 440]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 113 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.3s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 770 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 748 mSDsluCounter, 4791 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3347 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 809 IncrementalHoareTripleChecker+Invalid, 880 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 1444 mSDtfsCounter, 809 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 325 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1105occurred in iteration=9, InterpolantAutomatonStates: 59, 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, 10 MinimizatonAttempts, 17 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 900 NumberOfCodeBlocks, 900 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 888 ConstructedInterpolants, 0 QuantifiedInterpolants, 1316 SizeOfPredicates, 1 NumberOfNonLiveVariables, 781 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 12 InterpolantComputations, 10 PerfectInterpolantSequences, 209/215 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: 377]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (splverifierCounter == 0)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (splverifierCounter == 0))) || (((methaneLevelCritical == 0) && (splverifierCounter == 0)) && (0 != systemActive))) - InvariantResult [Line: 599]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 376]: Location Invariant Derived location invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-11-28 03:30:51,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70405c-96b5-4f84-b474-d92bc2f43f33/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