./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product43.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_6d586405-0780-47dd-a72b-f0ace1efa9be/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d586405-0780-47dd-a72b-f0ace1efa9be/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d586405-0780-47dd-a72b-f0ace1efa9be/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d586405-0780-47dd-a72b-f0ace1efa9be/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d586405-0780-47dd-a72b-f0ace1efa9be/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d586405-0780-47dd-a72b-f0ace1efa9be/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 80c186986e830d4bb291929eac4e7624996dc1953e9c0441022d003e4def396a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:26:32,826 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:26:32,878 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d586405-0780-47dd-a72b-f0ace1efa9be/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 08:26:32,882 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:26:32,883 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:26:32,902 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:26:32,903 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:26:32,903 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:26:32,903 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:26:32,904 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:26:32,904 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:26:32,904 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:26:32,904 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:26:32,904 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:26:32,904 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:26:32,904 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:26:32,904 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:26:32,905 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:26:32,905 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:26:32,905 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:26:32,905 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:26:32,905 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:26:32,905 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:26:32,905 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:26:32,905 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:26:32,905 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:26:32,905 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:26:32,905 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:26:32,905 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:26:32,905 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:26:32,905 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:26:32,906 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:26:32,906 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:26:32,906 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:26:32,906 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:26:32,906 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:26:32,906 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:26:32,906 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:26:32,906 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:26:32,906 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:26:32,906 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:26:32,906 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:26:32,906 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:26:32,906 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:26:32,907 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:26:32,907 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:26:32,907 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:26:32,907 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:26:32,907 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_6d586405-0780-47dd-a72b-f0ace1efa9be/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80c186986e830d4bb291929eac4e7624996dc1953e9c0441022d003e4def396a [2024-12-02 08:26:33,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:26:33,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:26:33,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:26:33,134 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:26:33,134 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:26:33,135 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d586405-0780-47dd-a72b-f0ace1efa9be/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c [2024-12-02 08:26:35,820 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d586405-0780-47dd-a72b-f0ace1efa9be/bin/uautomizer-verify-84ZbGMXZE1/data/72197e9a6/a9b3ff1ef6c14f3e8e3de489c81fed84/FLAGde315218e [2024-12-02 08:26:36,073 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:26:36,074 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d586405-0780-47dd-a72b-f0ace1efa9be/sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c [2024-12-02 08:26:36,086 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d586405-0780-47dd-a72b-f0ace1efa9be/bin/uautomizer-verify-84ZbGMXZE1/data/72197e9a6/a9b3ff1ef6c14f3e8e3de489c81fed84/FLAGde315218e [2024-12-02 08:26:36,415 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d586405-0780-47dd-a72b-f0ace1efa9be/bin/uautomizer-verify-84ZbGMXZE1/data/72197e9a6/a9b3ff1ef6c14f3e8e3de489c81fed84 [2024-12-02 08:26:36,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:26:36,417 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:26:36,418 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:26:36,418 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:26:36,421 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:26:36,422 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:26:36" (1/1) ... [2024-12-02 08:26:36,422 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f969f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:26:36, skipping insertion in model container [2024-12-02 08:26:36,423 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:26:36" (1/1) ... [2024-12-02 08:26:36,449 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:26:36,654 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_6d586405-0780-47dd-a72b-f0ace1efa9be/sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c[18403,18416] [2024-12-02 08:26:36,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:26:36,664 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:26:36,670 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2024-12-02 08:26:36,671 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [150] [2024-12-02 08:26:36,671 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [516] [2024-12-02 08:26:36,671 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [620] [2024-12-02 08:26:36,671 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [655] [2024-12-02 08:26:36,672 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [696] [2024-12-02 08:26:36,672 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [764] [2024-12-02 08:26:36,672 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [951] [2024-12-02 08:26:36,720 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_6d586405-0780-47dd-a72b-f0ace1efa9be/sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c[18403,18416] [2024-12-02 08:26:36,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:26:36,735 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:26:36,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:26:36 WrapperNode [2024-12-02 08:26:36,736 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:26:36,737 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:26:36,737 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:26:36,737 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:26:36,742 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:26:36" (1/1) ... [2024-12-02 08:26:36,752 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:26:36" (1/1) ... [2024-12-02 08:26:36,770 INFO L138 Inliner]: procedures = 55, calls = 98, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 195 [2024-12-02 08:26:36,771 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:26:36,771 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:26:36,771 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:26:36,772 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:26:36,778 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:26:36" (1/1) ... [2024-12-02 08:26:36,778 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:26:36" (1/1) ... [2024-12-02 08:26:36,780 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:26:36" (1/1) ... [2024-12-02 08:26:36,793 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 08:26:36,794 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:26:36" (1/1) ... [2024-12-02 08:26:36,794 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:26:36" (1/1) ... [2024-12-02 08:26:36,798 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:26:36" (1/1) ... [2024-12-02 08:26:36,799 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:26:36" (1/1) ... [2024-12-02 08:26:36,803 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:26:36" (1/1) ... [2024-12-02 08:26:36,804 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:26:36" (1/1) ... [2024-12-02 08:26:36,805 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:26:36" (1/1) ... [2024-12-02 08:26:36,807 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:26:36,808 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:26:36,808 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:26:36,808 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:26:36,809 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:26:36" (1/1) ... [2024-12-02 08:26:36,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:26:36,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d586405-0780-47dd-a72b-f0ace1efa9be/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:26:36,834 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d586405-0780-47dd-a72b-f0ace1efa9be/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:26:36,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d586405-0780-47dd-a72b-f0ace1efa9be/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:26:36,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:26:36,855 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-12-02 08:26:36,855 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-12-02 08:26:36,855 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-12-02 08:26:36,855 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-12-02 08:26:36,855 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-12-02 08:26:36,855 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-12-02 08:26:36,856 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-12-02 08:26:36,856 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-12-02 08:26:36,856 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-12-02 08:26:36,856 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-12-02 08:26:36,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:26:36,856 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-12-02 08:26:36,856 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-12-02 08:26:36,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:26:36,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:26:36,912 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:26:36,913 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:26:37,114 INFO L? ?]: Removed 40 outVars from TransFormulas that were not future-live. [2024-12-02 08:26:37,114 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:26:37,121 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:26:37,122 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 08:26:37,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:26:37 BoogieIcfgContainer [2024-12-02 08:26:37,122 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:26:37,124 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:26:37,124 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:26:37,129 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:26:37,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:26:36" (1/3) ... [2024-12-02 08:26:37,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@247a672e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:26:37, skipping insertion in model container [2024-12-02 08:26:37,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:26:36" (2/3) ... [2024-12-02 08:26:37,130 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@247a672e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:26:37, skipping insertion in model container [2024-12-02 08:26:37,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:26:37" (3/3) ... [2024-12-02 08:26:37,131 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product43.cil.c [2024-12-02 08:26:37,143 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:26:37,145 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec2_product43.cil.c that has 7 procedures, 83 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-12-02 08:26:37,194 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:26:37,203 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;@2d2e28f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:26:37,204 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:26:37,207 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 65 states have (on average 1.4) internal successors, (91), 71 states have internal predecessors, (91), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-12-02 08:26:37,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-02 08:26:37,215 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:26:37,216 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:26:37,216 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:26:37,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:26:37,221 INFO L85 PathProgramCache]: Analyzing trace with hash -389391298, now seen corresponding path program 1 times [2024-12-02 08:26:37,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:26:37,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949547899] [2024-12-02 08:26:37,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:26:37,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:26:37,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:26:37,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:26:37,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:26:37,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949547899] [2024-12-02 08:26:37,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949547899] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:26:37,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:26:37,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 08:26:37,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179106339] [2024-12-02 08:26:37,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:26:37,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:26:37,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:26:37,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:26:37,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:26:37,402 INFO L87 Difference]: Start difference. First operand has 83 states, 65 states have (on average 1.4) internal successors, (91), 71 states have internal predecessors, (91), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 08:26:37,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:26:37,420 INFO L93 Difference]: Finished difference Result 157 states and 216 transitions. [2024-12-02 08:26:37,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:26:37,421 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-12-02 08:26:37,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:26:37,427 INFO L225 Difference]: With dead ends: 157 [2024-12-02 08:26:37,427 INFO L226 Difference]: Without dead ends: 74 [2024-12-02 08:26:37,429 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:26:37,432 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:26:37,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:26:37,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-12-02 08:26:37,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2024-12-02 08:26:37,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 63 states have internal predecessors, (77), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 08:26:37,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 96 transitions. [2024-12-02 08:26:37,460 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 96 transitions. Word has length 25 [2024-12-02 08:26:37,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:26:37,461 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 96 transitions. [2024-12-02 08:26:37,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 08:26:37,461 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 96 transitions. [2024-12-02 08:26:37,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-02 08:26:37,462 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:26:37,462 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:26:37,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 08:26:37,463 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:26:37,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:26:37,463 INFO L85 PathProgramCache]: Analyzing trace with hash -859467708, now seen corresponding path program 1 times [2024-12-02 08:26:37,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:26:37,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764735619] [2024-12-02 08:26:37,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:26:37,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:26:37,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:26:37,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:26:37,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:26:37,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764735619] [2024-12-02 08:26:37,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764735619] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:26:37,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:26:37,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:26:37,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490759969] [2024-12-02 08:26:37,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:26:37,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:26:37,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:26:37,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:26:37,559 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:26:37,559 INFO L87 Difference]: Start difference. First operand 74 states and 96 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 08:26:37,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:26:37,573 INFO L93 Difference]: Finished difference Result 111 states and 144 transitions. [2024-12-02 08:26:37,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:26:37,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-12-02 08:26:37,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:26:37,575 INFO L225 Difference]: With dead ends: 111 [2024-12-02 08:26:37,575 INFO L226 Difference]: Without dead ends: 66 [2024-12-02 08:26:37,576 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:26:37,576 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 17 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:26:37,577 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 148 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:26:37,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-12-02 08:26:37,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-12-02 08:26:37,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 53 states have (on average 1.3396226415094339) internal successors, (71), 58 states have internal predecessors, (71), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2024-12-02 08:26:37,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 85 transitions. [2024-12-02 08:26:37,584 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 85 transitions. Word has length 25 [2024-12-02 08:26:37,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:26:37,584 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 85 transitions. [2024-12-02 08:26:37,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 08:26:37,585 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 85 transitions. [2024-12-02 08:26:37,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-12-02 08:26:37,585 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:26:37,586 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:26:37,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:26:37,586 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:26:37,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:26:37,586 INFO L85 PathProgramCache]: Analyzing trace with hash -693208879, now seen corresponding path program 1 times [2024-12-02 08:26:37,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:26:37,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713527645] [2024-12-02 08:26:37,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:26:37,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:26:37,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:26:37,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:26:37,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:26:37,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713527645] [2024-12-02 08:26:37,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713527645] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:26:37,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:26:37,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:26:37,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328529453] [2024-12-02 08:26:37,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:26:37,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:26:37,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:26:37,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:26:37,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:26:37,721 INFO L87 Difference]: Start difference. First operand 66 states and 85 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 08:26:37,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:26:37,852 INFO L93 Difference]: Finished difference Result 220 states and 292 transitions. [2024-12-02 08:26:37,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:26:37,852 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2024-12-02 08:26:37,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:26:37,854 INFO L225 Difference]: With dead ends: 220 [2024-12-02 08:26:37,854 INFO L226 Difference]: Without dead ends: 162 [2024-12-02 08:26:37,855 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:26:37,855 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 143 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:26:37,856 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 418 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:26:37,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-12-02 08:26:37,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 152. [2024-12-02 08:26:37,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 119 states have (on average 1.3781512605042017) internal successors, (164), 130 states have internal predecessors, (164), 18 states have call successors, (18), 14 states have call predecessors, (18), 14 states have return successors, (19), 16 states have call predecessors, (19), 18 states have call successors, (19) [2024-12-02 08:26:37,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 201 transitions. [2024-12-02 08:26:37,877 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 201 transitions. Word has length 29 [2024-12-02 08:26:37,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:26:37,878 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 201 transitions. [2024-12-02 08:26:37,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 08:26:37,878 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 201 transitions. [2024-12-02 08:26:37,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-12-02 08:26:37,879 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:26:37,879 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:26:37,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 08:26:37,880 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:26:37,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:26:37,880 INFO L85 PathProgramCache]: Analyzing trace with hash 167099458, now seen corresponding path program 1 times [2024-12-02 08:26:37,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:26:37,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821531125] [2024-12-02 08:26:37,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:26:37,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:26:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:26:37,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:26:37,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:26:37,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821531125] [2024-12-02 08:26:37,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821531125] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:26:37,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:26:37,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:26:37,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178987628] [2024-12-02 08:26:37,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:26:37,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:26:37,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:26:37,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:26:37,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:26:37,955 INFO L87 Difference]: Start difference. First operand 152 states and 201 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 08:26:37,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:26:37,991 INFO L93 Difference]: Finished difference Result 371 states and 499 transitions. [2024-12-02 08:26:37,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:26:37,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2024-12-02 08:26:37,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:26:37,994 INFO L225 Difference]: With dead ends: 371 [2024-12-02 08:26:37,994 INFO L226 Difference]: Without dead ends: 227 [2024-12-02 08:26:37,995 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:26:37,996 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 58 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:26:37,996 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 130 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:26:37,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-12-02 08:26:38,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 225. [2024-12-02 08:26:38,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 174 states have (on average 1.3505747126436782) internal successors, (235), 189 states have internal predecessors, (235), 26 states have call successors, (26), 24 states have call predecessors, (26), 24 states have return successors, (32), 26 states have call predecessors, (32), 26 states have call successors, (32) [2024-12-02 08:26:38,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 293 transitions. [2024-12-02 08:26:38,025 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 293 transitions. Word has length 34 [2024-12-02 08:26:38,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:26:38,025 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 293 transitions. [2024-12-02 08:26:38,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 08:26:38,025 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 293 transitions. [2024-12-02 08:26:38,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-12-02 08:26:38,026 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:26:38,026 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] [2024-12-02 08:26:38,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 08:26:38,026 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:26:38,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:26:38,027 INFO L85 PathProgramCache]: Analyzing trace with hash -642154180, now seen corresponding path program 1 times [2024-12-02 08:26:38,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:26:38,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838911426] [2024-12-02 08:26:38,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:26:38,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:26:38,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:26:38,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:26:38,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:26:38,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838911426] [2024-12-02 08:26:38,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838911426] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:26:38,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:26:38,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:26:38,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356436401] [2024-12-02 08:26:38,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:26:38,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:26:38,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:26:38,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:26:38,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:26:38,138 INFO L87 Difference]: Start difference. First operand 225 states and 293 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 08:26:38,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:26:38,195 INFO L93 Difference]: Finished difference Result 439 states and 578 transitions. [2024-12-02 08:26:38,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:26:38,196 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), 1 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 33 [2024-12-02 08:26:38,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:26:38,197 INFO L225 Difference]: With dead ends: 439 [2024-12-02 08:26:38,197 INFO L226 Difference]: Without dead ends: 222 [2024-12-02 08:26:38,198 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:26:38,199 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 47 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:26:38,199 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 283 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:26:38,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-12-02 08:26:38,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2024-12-02 08:26:38,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 171 states have (on average 1.3216374269005848) internal successors, (226), 186 states have internal predecessors, (226), 26 states have call successors, (26), 24 states have call predecessors, (26), 24 states have return successors, (32), 26 states have call predecessors, (32), 26 states have call successors, (32) [2024-12-02 08:26:38,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 284 transitions. [2024-12-02 08:26:38,220 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 284 transitions. Word has length 33 [2024-12-02 08:26:38,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:26:38,220 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 284 transitions. [2024-12-02 08:26:38,220 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), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 08:26:38,220 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 284 transitions. [2024-12-02 08:26:38,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-12-02 08:26:38,221 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:26:38,221 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] [2024-12-02 08:26:38,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 08:26:38,222 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:26:38,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:26:38,222 INFO L85 PathProgramCache]: Analyzing trace with hash -2112136175, now seen corresponding path program 1 times [2024-12-02 08:26:38,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:26:38,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691335426] [2024-12-02 08:26:38,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:26:38,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:26:38,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:26:38,298 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 08:26:38,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:26:38,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691335426] [2024-12-02 08:26:38,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691335426] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:26:38,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:26:38,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:26:38,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204122600] [2024-12-02 08:26:38,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:26:38,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:26:38,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:26:38,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:26:38,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:26:38,300 INFO L87 Difference]: Start difference. First operand 222 states and 284 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 08:26:38,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:26:38,360 INFO L93 Difference]: Finished difference Result 628 states and 836 transitions. [2024-12-02 08:26:38,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:26:38,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2024-12-02 08:26:38,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:26:38,364 INFO L225 Difference]: With dead ends: 628 [2024-12-02 08:26:38,364 INFO L226 Difference]: Without dead ends: 414 [2024-12-02 08:26:38,365 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:26:38,366 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 55 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:26:38,366 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 154 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:26:38,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-12-02 08:26:38,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 412. [2024-12-02 08:26:38,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 320 states have (on average 1.309375) internal successors, (419), 342 states have internal predecessors, (419), 50 states have call successors, (50), 46 states have call predecessors, (50), 41 states have return successors, (66), 45 states have call predecessors, (66), 50 states have call successors, (66) [2024-12-02 08:26:38,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 535 transitions. [2024-12-02 08:26:38,410 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 535 transitions. Word has length 46 [2024-12-02 08:26:38,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:26:38,410 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 535 transitions. [2024-12-02 08:26:38,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 08:26:38,410 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 535 transitions. [2024-12-02 08:26:38,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-12-02 08:26:38,412 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:26:38,412 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] [2024-12-02 08:26:38,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 08:26:38,412 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:26:38,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:26:38,413 INFO L85 PathProgramCache]: Analyzing trace with hash 259603087, now seen corresponding path program 1 times [2024-12-02 08:26:38,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:26:38,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487557233] [2024-12-02 08:26:38,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:26:38,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:26:38,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:26:38,486 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 08:26:38,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:26:38,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487557233] [2024-12-02 08:26:38,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487557233] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:26:38,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:26:38,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:26:38,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542903875] [2024-12-02 08:26:38,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:26:38,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:26:38,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:26:38,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:26:38,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:26:38,488 INFO L87 Difference]: Start difference. First operand 412 states and 535 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 08:26:38,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:26:38,547 INFO L93 Difference]: Finished difference Result 828 states and 1102 transitions. [2024-12-02 08:26:38,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:26:38,547 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2024-12-02 08:26:38,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:26:38,551 INFO L225 Difference]: With dead ends: 828 [2024-12-02 08:26:38,551 INFO L226 Difference]: Without dead ends: 424 [2024-12-02 08:26:38,553 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:26:38,553 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:26:38,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 321 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:26:38,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2024-12-02 08:26:38,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 424. [2024-12-02 08:26:38,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 332 states have (on average 1.2981927710843373) internal successors, (431), 354 states have internal predecessors, (431), 50 states have call successors, (50), 46 states have call predecessors, (50), 41 states have return successors, (66), 45 states have call predecessors, (66), 50 states have call successors, (66) [2024-12-02 08:26:38,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 547 transitions. [2024-12-02 08:26:38,602 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 547 transitions. Word has length 46 [2024-12-02 08:26:38,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:26:38,602 INFO L471 AbstractCegarLoop]: Abstraction has 424 states and 547 transitions. [2024-12-02 08:26:38,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 08:26:38,603 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 547 transitions. [2024-12-02 08:26:38,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-12-02 08:26:38,604 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:26:38,604 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] [2024-12-02 08:26:38,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 08:26:38,605 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:26:38,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:26:38,605 INFO L85 PathProgramCache]: Analyzing trace with hash 400151697, now seen corresponding path program 1 times [2024-12-02 08:26:38,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:26:38,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571769135] [2024-12-02 08:26:38,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:26:38,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:26:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:26:38,709 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 08:26:38,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:26:38,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571769135] [2024-12-02 08:26:38,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571769135] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:26:38,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:26:38,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:26:38,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471097184] [2024-12-02 08:26:38,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:26:38,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:26:38,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:26:38,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:26:38,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:26:38,711 INFO L87 Difference]: Start difference. First operand 424 states and 547 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 08:26:38,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:26:38,769 INFO L93 Difference]: Finished difference Result 760 states and 988 transitions. [2024-12-02 08:26:38,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:26:38,770 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2024-12-02 08:26:38,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:26:38,772 INFO L225 Difference]: With dead ends: 760 [2024-12-02 08:26:38,773 INFO L226 Difference]: Without dead ends: 344 [2024-12-02 08:26:38,775 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:26:38,775 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:26:38,776 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 397 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:26:38,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-12-02 08:26:38,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2024-12-02 08:26:38,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 268 states have (on average 1.2761194029850746) internal successors, (342), 286 states have internal predecessors, (342), 40 states have call successors, (40), 38 states have call predecessors, (40), 35 states have return successors, (47), 37 states have call predecessors, (47), 40 states have call successors, (47) [2024-12-02 08:26:38,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 429 transitions. [2024-12-02 08:26:38,812 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 429 transitions. Word has length 46 [2024-12-02 08:26:38,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:26:38,813 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 429 transitions. [2024-12-02 08:26:38,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 08:26:38,813 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 429 transitions. [2024-12-02 08:26:38,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-12-02 08:26:38,814 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:26:38,814 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] [2024-12-02 08:26:38,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 08:26:38,815 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:26:38,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:26:38,815 INFO L85 PathProgramCache]: Analyzing trace with hash 460865913, now seen corresponding path program 1 times [2024-12-02 08:26:38,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:26:38,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243175407] [2024-12-02 08:26:38,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:26:38,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:26:38,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:26:38,886 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 08:26:38,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:26:38,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243175407] [2024-12-02 08:26:38,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243175407] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:26:38,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:26:38,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:26:38,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023318590] [2024-12-02 08:26:38,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:26:38,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:26:38,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:26:38,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:26:38,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:26:38,888 INFO L87 Difference]: Start difference. First operand 344 states and 429 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 08:26:38,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:26:38,939 INFO L93 Difference]: Finished difference Result 506 states and 642 transitions. [2024-12-02 08:26:38,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:26:38,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 50 [2024-12-02 08:26:38,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:26:38,943 INFO L225 Difference]: With dead ends: 506 [2024-12-02 08:26:38,944 INFO L226 Difference]: Without dead ends: 504 [2024-12-02 08:26:38,944 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:26:38,945 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 47 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:26:38,945 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 157 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:26:38,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2024-12-02 08:26:38,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 487. [2024-12-02 08:26:38,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 380 states have (on average 1.2789473684210526) internal successors, (486), 408 states have internal predecessors, (486), 57 states have call successors, (57), 53 states have call predecessors, (57), 49 states have return successors, (76), 51 states have call predecessors, (76), 57 states have call successors, (76) [2024-12-02 08:26:38,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 619 transitions. [2024-12-02 08:26:38,998 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 619 transitions. Word has length 50 [2024-12-02 08:26:38,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:26:38,998 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 619 transitions. [2024-12-02 08:26:38,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 08:26:38,998 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 619 transitions. [2024-12-02 08:26:39,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 08:26:39,001 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:26:39,001 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-12-02 08:26:39,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 08:26:39,001 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:26:39,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:26:39,002 INFO L85 PathProgramCache]: Analyzing trace with hash 79161797, now seen corresponding path program 1 times [2024-12-02 08:26:39,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:26:39,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021305865] [2024-12-02 08:26:39,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:26:39,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:26:39,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:26:39,175 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 08:26:39,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:26:39,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021305865] [2024-12-02 08:26:39,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021305865] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:26:39,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957625481] [2024-12-02 08:26:39,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:26:39,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:26:39,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d586405-0780-47dd-a72b-f0ace1efa9be/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:26:39,178 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d586405-0780-47dd-a72b-f0ace1efa9be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:26:39,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d586405-0780-47dd-a72b-f0ace1efa9be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:26:39,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:26:39,271 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 08:26:39,277 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:26:39,445 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-02 08:26:39,445 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:26:39,574 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-02 08:26:39,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957625481] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:26:39,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:26:39,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 5] total 11 [2024-12-02 08:26:39,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675002984] [2024-12-02 08:26:39,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:26:39,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:26:39,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:26:39,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:26:39,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:26:39,576 INFO L87 Difference]: Start difference. First operand 487 states and 619 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 08:26:39,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:26:39,705 INFO L93 Difference]: Finished difference Result 1391 states and 1814 transitions. [2024-12-02 08:26:39,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:26:39,706 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 80 [2024-12-02 08:26:39,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:26:39,711 INFO L225 Difference]: With dead ends: 1391 [2024-12-02 08:26:39,711 INFO L226 Difference]: Without dead ends: 912 [2024-12-02 08:26:39,713 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 159 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:26:39,714 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 48 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:26:39,714 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 378 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:26:39,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2024-12-02 08:26:39,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 807. [2024-12-02 08:26:39,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 807 states, 623 states have (on average 1.2568218298555378) internal successors, (783), 670 states have internal predecessors, (783), 97 states have call successors, (97), 91 states have call predecessors, (97), 86 states have return successors, (133), 88 states have call predecessors, (133), 97 states have call successors, (133) [2024-12-02 08:26:39,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1013 transitions. [2024-12-02 08:26:39,779 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1013 transitions. Word has length 80 [2024-12-02 08:26:39,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:26:39,779 INFO L471 AbstractCegarLoop]: Abstraction has 807 states and 1013 transitions. [2024-12-02 08:26:39,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 08:26:39,779 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1013 transitions. [2024-12-02 08:26:39,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 08:26:39,783 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:26:39,783 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-12-02 08:26:39,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d586405-0780-47dd-a72b-f0ace1efa9be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:26:39,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d586405-0780-47dd-a72b-f0ace1efa9be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:26:39,984 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:26:39,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:26:39,984 INFO L85 PathProgramCache]: Analyzing trace with hash 524096713, now seen corresponding path program 1 times [2024-12-02 08:26:39,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:26:39,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853596190] [2024-12-02 08:26:39,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:26:39,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:26:39,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:26:40,171 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 08:26:40,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:26:40,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853596190] [2024-12-02 08:26:40,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853596190] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:26:40,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321169415] [2024-12-02 08:26:40,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:26:40,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:26:40,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d586405-0780-47dd-a72b-f0ace1efa9be/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:26:40,174 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d586405-0780-47dd-a72b-f0ace1efa9be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:26:40,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d586405-0780-47dd-a72b-f0ace1efa9be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 08:26:40,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:26:40,263 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 08:26:40,266 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:26:40,403 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 08:26:40,404 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:26:40,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321169415] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:26:40,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:26:40,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2024-12-02 08:26:40,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074558896] [2024-12-02 08:26:40,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:26:40,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:26:40,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:26:40,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:26:40,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:26:40,405 INFO L87 Difference]: Start difference. First operand 807 states and 1013 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-12-02 08:26:40,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:26:40,535 INFO L93 Difference]: Finished difference Result 1594 states and 2016 transitions. [2024-12-02 08:26:40,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:26:40,536 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 84 [2024-12-02 08:26:40,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:26:40,541 INFO L225 Difference]: With dead ends: 1594 [2024-12-02 08:26:40,541 INFO L226 Difference]: Without dead ends: 795 [2024-12-02 08:26:40,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:26:40,544 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 52 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:26:40,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 434 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:26:40,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2024-12-02 08:26:40,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 726. [2024-12-02 08:26:40,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 559 states have (on average 1.2468694096601074) internal successors, (697), 594 states have internal predecessors, (697), 88 states have call successors, (88), 84 states have call predecessors, (88), 78 states have return successors, (105), 82 states have call predecessors, (105), 88 states have call successors, (105) [2024-12-02 08:26:40,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 890 transitions. [2024-12-02 08:26:40,605 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 890 transitions. Word has length 84 [2024-12-02 08:26:40,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:26:40,606 INFO L471 AbstractCegarLoop]: Abstraction has 726 states and 890 transitions. [2024-12-02 08:26:40,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-12-02 08:26:40,606 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 890 transitions. [2024-12-02 08:26:40,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 08:26:40,609 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:26:40,609 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:26:40,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d586405-0780-47dd-a72b-f0ace1efa9be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 08:26:40,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d586405-0780-47dd-a72b-f0ace1efa9be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-02 08:26:40,810 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:26:40,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:26:40,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1756484365, now seen corresponding path program 1 times [2024-12-02 08:26:40,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:26:40,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958202719] [2024-12-02 08:26:40,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:26:40,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:26:40,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:26:40,832 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:26:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:26:40,877 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 08:26:40,877 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 08:26:40,878 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 08:26:40,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 08:26:40,882 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:26:40,945 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 08:26:40,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:26:40 BoogieIcfgContainer [2024-12-02 08:26:40,948 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 08:26:40,949 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 08:26:40,949 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 08:26:40,949 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 08:26:40,949 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:26:37" (3/4) ... [2024-12-02 08:26:40,950 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-02 08:26:41,028 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 91. [2024-12-02 08:26:41,111 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d586405-0780-47dd-a72b-f0ace1efa9be/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 08:26:41,111 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d586405-0780-47dd-a72b-f0ace1efa9be/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 08:26:41,111 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 08:26:41,112 INFO L158 Benchmark]: Toolchain (without parser) took 4694.44ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 92.4MB in the beginning and 153.1MB in the end (delta: -60.6MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. [2024-12-02 08:26:41,112 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:26:41,112 INFO L158 Benchmark]: CACSL2BoogieTranslator took 317.91ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 73.7MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 08:26:41,113 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.32ms. Allocated memory is still 117.4MB. Free memory was 73.7MB in the beginning and 71.9MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:26:41,113 INFO L158 Benchmark]: Boogie Preprocessor took 35.69ms. Allocated memory is still 117.4MB. Free memory was 71.9MB in the beginning and 70.1MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:26:41,113 INFO L158 Benchmark]: RCFGBuilder took 314.38ms. Allocated memory is still 117.4MB. Free memory was 70.1MB in the beginning and 53.9MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 08:26:41,113 INFO L158 Benchmark]: TraceAbstraction took 3823.99ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 53.4MB in the beginning and 167.9MB in the end (delta: -114.5MB). Peak memory consumption was 76.1MB. Max. memory is 16.1GB. [2024-12-02 08:26:41,114 INFO L158 Benchmark]: Witness Printer took 162.59ms. Allocated memory is still 201.3MB. Free memory was 167.9MB in the beginning and 153.1MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 08:26:41,115 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 317.91ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 73.7MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.32ms. Allocated memory is still 117.4MB. Free memory was 73.7MB in the beginning and 71.9MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.69ms. Allocated memory is still 117.4MB. Free memory was 71.9MB in the beginning and 70.1MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 314.38ms. Allocated memory is still 117.4MB. Free memory was 70.1MB in the beginning and 53.9MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3823.99ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 53.4MB in the beginning and 167.9MB in the end (delta: -114.5MB). Peak memory consumption was 76.1MB. Max. memory is 16.1GB. * Witness Printer took 162.59ms. Allocated memory is still 201.3MB. Free memory was 167.9MB in the beginning and 153.1MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. 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,"Environment.i","") [49] - GenericResultAtLocation [Line: 150]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [150] - GenericResultAtLocation [Line: 516]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [516] - GenericResultAtLocation [Line: 620]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [620] - GenericResultAtLocation [Line: 655]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [655] - GenericResultAtLocation [Line: 696]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [696] - GenericResultAtLocation [Line: 764]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [764] - GenericResultAtLocation [Line: 951]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [951] * 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 - CounterExampleResult [Line: 956]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L320] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L517] int cleanupTimeShifts = 4; [L658] int methAndRunningLastTime ; [L767] int pumpRunning = 0; [L768] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L598] int retValue_acc ; [L599] int tmp ; [L603] FCALL select_helpers() [L604] FCALL select_features() [L605] CALL, EXPR valid_product() [L647] int retValue_acc ; [L650] retValue_acc = 1 [L651] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L605] RET, EXPR valid_product() [L605] tmp = valid_product() [L607] COND TRUE \read(tmp) [L609] FCALL setup() [L610] CALL runTest() [L588] CALL __utac_acc__Specification2_spec__1() [L663] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L588] RET __utac_acc__Specification2_spec__1() [L589] CALL test() [L699] int splverifierCounter ; [L700] int tmp ; [L701] int tmp___0 ; [L702] int tmp___1 ; [L703] int tmp___2 ; [L706] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L710] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L716] tmp = __VERIFIER_nondet_int() [L718] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L720] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L75] COND TRUE waterLevel < 2 [L76] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L720] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L726] tmp___0 = __VERIFIER_nondet_int() [L728] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L736] tmp___2 = __VERIFIER_nondet_int() [L738] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L753] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L774] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L781] COND TRUE \read(systemActive) [L783] CALL processEnvironment() [L803] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L806] COND TRUE ! pumpRunning [L808] CALL, EXPR isHighWaterLevel() [L918] int retValue_acc ; [L919] int tmp ; [L920] int tmp___0 ; [L924] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L140] COND FALSE !(waterLevel < 2) [L144] retValue_acc = 0 [L145] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L924] RET, EXPR isHighWaterSensorDry() [L924] tmp = isHighWaterSensorDry() [L926] COND FALSE !(\read(tmp)) [L929] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp___0=1, waterLevel=2] [L931] retValue_acc = tmp___0 [L932] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L808] RET, EXPR isHighWaterLevel() [L808] tmp = isHighWaterLevel() [L810] COND TRUE \read(tmp) [L812] CALL activatePump() [L837] int tmp ; [L841] CALL, EXPR isMethaneAlarm() [L862] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L866] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L866] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L866] retValue_acc = isMethaneLevelCritical() [L868] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L841] RET, EXPR isMethaneAlarm() [L841] tmp = isMethaneAlarm() [L843] COND FALSE !(\read(tmp)) [L847] CALL activatePump__wrappee__highWaterSensor() [L831] pumpRunning = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L847] RET activatePump__wrappee__highWaterSensor() [L812] RET activatePump() [L783] RET processEnvironment() [L789] CALL __utac_acc__Specification2_spec__2() [L668] int tmp ; [L669] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L673] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L673] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L673] tmp = isMethaneLevelCritical() [L675] COND FALSE !(\read(tmp)) [L691] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L789] RET __utac_acc__Specification2_spec__2() [L753] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=2] [L710] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=2] [L716] tmp = __VERIFIER_nondet_int() [L718] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=2] [L726] tmp___0 = __VERIFIER_nondet_int() [L728] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=2] [L730] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L87] COND FALSE !(\read(methaneLevelCritical)) [L90] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L730] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=2] [L736] tmp___2 = __VERIFIER_nondet_int() [L738] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=2] [L753] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L774] COND TRUE \read(pumpRunning) [L776] CALL lowerWaterLevel() [L63] COND TRUE waterLevel > 0 [L64] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L776] RET lowerWaterLevel() [L781] COND TRUE \read(systemActive) [L783] CALL processEnvironment() [L803] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L806] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L821] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L783] RET processEnvironment() [L789] CALL __utac_acc__Specification2_spec__2() [L668] int tmp ; [L669] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L673] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L673] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L673] tmp = isMethaneLevelCritical() [L675] COND TRUE \read(tmp) [L677] CALL, EXPR isPumpRunning() [L873] int retValue_acc ; [L876] retValue_acc = pumpRunning [L877] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L677] RET, EXPR isPumpRunning() [L677] tmp___0 = isPumpRunning() [L679] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L680] COND FALSE !(\read(methAndRunningLastTime)) [L685] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L789] RET __utac_acc__Specification2_spec__2() [L753] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=1] [L710] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=1] [L716] tmp = __VERIFIER_nondet_int() [L718] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=1] [L726] tmp___0 = __VERIFIER_nondet_int() [L728] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=1] [L736] tmp___2 = __VERIFIER_nondet_int() [L738] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=1] [L753] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L774] COND TRUE \read(pumpRunning) [L776] CALL lowerWaterLevel() [L63] COND TRUE waterLevel > 0 [L64] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L776] RET lowerWaterLevel() [L781] COND TRUE \read(systemActive) [L783] CALL processEnvironment() [L803] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L806] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L821] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L783] RET processEnvironment() [L789] CALL __utac_acc__Specification2_spec__2() [L668] int tmp ; [L669] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L673] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L673] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L673] tmp = isMethaneLevelCritical() [L675] COND TRUE \read(tmp) [L677] CALL, EXPR isPumpRunning() [L873] int retValue_acc ; [L876] retValue_acc = pumpRunning [L877] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L677] RET, EXPR isPumpRunning() [L677] tmp___0 = isPumpRunning() [L679] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L680] COND TRUE \read(methAndRunningLastTime) [L682] CALL __automaton_fail() [L956] reach_error() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 83 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 473 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 467 mSDsluCounter, 2925 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1920 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 279 IncrementalHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 1005 mSDtfsCounter, 279 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 311 GetRequests, 263 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=807occurred in iteration=10, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 205 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 773 NumberOfCodeBlocks, 773 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 728 ConstructedInterpolants, 0 QuantifiedInterpolants, 1371 SizeOfPredicates, 1 NumberOfNonLiveVariables, 580 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 14 InterpolantComputations, 11 PerfectInterpolantSequences, 142/152 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 RESULT: Ultimate proved your program to be incorrect! [2024-12-02 08:26:41,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d586405-0780-47dd-a72b-f0ace1efa9be/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE