./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product54.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product54.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash af2afe79961dd67a52df68c35bd4350c760cf29ba0bba6313951f2194d2dea76 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:18:17,661 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:18:17,726 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 13:18:17,732 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:18:17,732 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:18:17,756 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:18:17,756 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:18:17,757 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:18:17,758 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:18:17,758 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:18:17,759 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:18:17,759 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:18:17,760 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:18:17,760 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:18:17,761 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:18:17,761 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:18:17,762 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:18:17,762 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:18:17,762 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:18:17,763 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:18:17,763 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:18:17,766 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:18:17,767 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:18:17,767 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:18:17,767 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:18:17,768 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:18:17,768 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:18:17,768 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:18:17,769 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:18:17,769 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:18:17,769 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:18:17,770 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:18:17,770 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:18:17,770 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:18:17,770 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:18:17,771 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:18:17,771 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:18:17,771 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:18:17,771 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:18:17,771 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:18:17,772 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:18:17,772 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:18:17,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:18:17,772 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:18:17,773 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:18:17,773 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:18:17,773 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:18:17,773 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af2afe79961dd67a52df68c35bd4350c760cf29ba0bba6313951f2194d2dea76 [2023-12-02 13:18:18,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:18:18,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:18:18,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:18:18,029 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:18:18,029 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:18:18,031 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/minepump_spec2_product54.cil.c [2023-12-02 13:18:20,798 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:18:21,018 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:18:21,019 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/sv-benchmarks/c/product-lines/minepump_spec2_product54.cil.c [2023-12-02 13:18:21,031 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/data/2c3c9ca04/3ab0186de0704f04a38e43c939db63c2/FLAGce6ad6725 [2023-12-02 13:18:21,045 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/data/2c3c9ca04/3ab0186de0704f04a38e43c939db63c2 [2023-12-02 13:18:21,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:18:21,050 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:18:21,051 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:18:21,051 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:18:21,056 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:18:21,056 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:18:21" (1/1) ... [2023-12-02 13:18:21,057 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e519700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:18:21, skipping insertion in model container [2023-12-02 13:18:21,058 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:18:21" (1/1) ... [2023-12-02 13:18:21,107 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:18:21,352 WARN L240 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_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/sv-benchmarks/c/product-lines/minepump_spec2_product54.cil.c[19335,19348] [2023-12-02 13:18:21,356 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:18:21,367 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:18:21,375 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2023-12-02 13:18:21,376 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [155] [2023-12-02 13:18:21,376 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [197] [2023-12-02 13:18:21,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [563] [2023-12-02 13:18:21,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [631] [2023-12-02 13:18:21,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [868] [2023-12-02 13:18:21,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [972] [2023-12-02 13:18:21,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1007] [2023-12-02 13:18:21,442 WARN L240 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_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/sv-benchmarks/c/product-lines/minepump_spec2_product54.cil.c[19335,19348] [2023-12-02 13:18:21,443 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:18:21,463 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:18:21,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:18:21 WrapperNode [2023-12-02 13:18:21,463 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:18:21,464 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:18:21,464 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:18:21,465 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:18:21,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:18:21" (1/1) ... [2023-12-02 13:18:21,486 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:18:21" (1/1) ... [2023-12-02 13:18:21,516 INFO L138 Inliner]: procedures = 58, calls = 104, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 227 [2023-12-02 13:18:21,516 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:18:21,517 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:18:21,517 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:18:21,517 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:18:21,525 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:18:21" (1/1) ... [2023-12-02 13:18:21,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:18:21" (1/1) ... [2023-12-02 13:18:21,529 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:18:21" (1/1) ... [2023-12-02 13:18:21,529 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:18:21" (1/1) ... [2023-12-02 13:18:21,535 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:18:21" (1/1) ... [2023-12-02 13:18:21,541 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:18:21" (1/1) ... [2023-12-02 13:18:21,543 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:18:21" (1/1) ... [2023-12-02 13:18:21,545 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:18:21" (1/1) ... [2023-12-02 13:18:21,549 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:18:21,550 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:18:21,550 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:18:21,550 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:18:21,551 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:18:21" (1/1) ... [2023-12-02 13:18:21,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:18:21,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:18:21,586 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:18:21,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:18:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:18:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-02 13:18:21,631 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-02 13:18:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-02 13:18:21,631 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-02 13:18:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-02 13:18:21,632 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-02 13:18:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-02 13:18:21,632 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-02 13:18:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-12-02 13:18:21,632 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-12-02 13:18:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-02 13:18:21,633 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-02 13:18:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2023-12-02 13:18:21,633 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2023-12-02 13:18:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-12-02 13:18:21,633 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-12-02 13:18:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:18:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-02 13:18:21,634 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-02 13:18:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:18:21,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:18:21,712 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:18:21,714 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:18:21,965 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:18:22,068 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:18:22,068 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-02 13:18:22,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:18:22 BoogieIcfgContainer [2023-12-02 13:18:22,070 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:18:22,072 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:18:22,073 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:18:22,076 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:18:22,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:18:21" (1/3) ... [2023-12-02 13:18:22,077 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@106a6e41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:18:22, skipping insertion in model container [2023-12-02 13:18:22,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:18:21" (2/3) ... [2023-12-02 13:18:22,077 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@106a6e41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:18:22, skipping insertion in model container [2023-12-02 13:18:22,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:18:22" (3/3) ... [2023-12-02 13:18:22,079 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product54.cil.c [2023-12-02 13:18:22,094 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:18:22,094 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:18:22,134 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:18:22,139 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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;@5668c327, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:18:22,139 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:18:22,143 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 52 states have internal predecessors, (60), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-02 13:18:22,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 13:18:22,151 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:18:22,151 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:18:22,152 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:18:22,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:18:22,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1984524575, now seen corresponding path program 1 times [2023-12-02 13:18:22,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:18:22,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977686290] [2023-12-02 13:18:22,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:18:22,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:18:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:18:22,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:18:22,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:18:22,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977686290] [2023-12-02 13:18:22,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977686290] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:18:22,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:18:22,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:18:22,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858376248] [2023-12-02 13:18:22,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:18:22,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 13:18:22,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:18:22,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 13:18:22,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 13:18:22,362 INFO L87 Difference]: Start difference. First operand has 69 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 52 states have internal predecessors, (60), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2023-12-02 13:18:22,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:18:22,429 INFO L93 Difference]: Finished difference Result 136 states and 185 transitions. [2023-12-02 13:18:22,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 13:18:22,431 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 17 [2023-12-02 13:18:22,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:18:22,439 INFO L225 Difference]: With dead ends: 136 [2023-12-02 13:18:22,439 INFO L226 Difference]: Without dead ends: 64 [2023-12-02 13:18:22,442 INFO L412 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 [2023-12-02 13:18:22,446 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:18:22,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 13:18:22,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-12-02 13:18:22,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2023-12-02 13:18:22,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 48 states have internal predecessors, (52), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 13:18:22,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 83 transitions. [2023-12-02 13:18:22,485 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 83 transitions. Word has length 17 [2023-12-02 13:18:22,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:18:22,485 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 83 transitions. [2023-12-02 13:18:22,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2023-12-02 13:18:22,486 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 83 transitions. [2023-12-02 13:18:22,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-02 13:18:22,488 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:18:22,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:18:22,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 13:18:22,489 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:18:22,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:18:22,490 INFO L85 PathProgramCache]: Analyzing trace with hash 195790186, now seen corresponding path program 1 times [2023-12-02 13:18:22,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:18:22,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437616533] [2023-12-02 13:18:22,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:18:22,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:18:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:18:22,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:18:22,587 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:18:22,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437616533] [2023-12-02 13:18:22,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437616533] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:18:22,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:18:22,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:18:22,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017738613] [2023-12-02 13:18:22,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:18:22,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:18:22,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:18:22,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:18:22,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:18:22,591 INFO L87 Difference]: Start difference. First operand 64 states and 83 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2023-12-02 13:18:22,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:18:22,635 INFO L93 Difference]: Finished difference Result 105 states and 137 transitions. [2023-12-02 13:18:22,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:18:22,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 18 [2023-12-02 13:18:22,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:18:22,636 INFO L225 Difference]: With dead ends: 105 [2023-12-02 13:18:22,637 INFO L226 Difference]: Without dead ends: 56 [2023-12-02 13:18:22,638 INFO L412 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 [2023-12-02 13:18:22,639 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 7 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:18:22,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 105 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 13:18:22,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-12-02 13:18:22,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2023-12-02 13:18:22,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 43 states have internal predecessors, (46), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-02 13:18:22,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 72 transitions. [2023-12-02 13:18:22,650 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 72 transitions. Word has length 18 [2023-12-02 13:18:22,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:18:22,651 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 72 transitions. [2023-12-02 13:18:22,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2023-12-02 13:18:22,651 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 72 transitions. [2023-12-02 13:18:22,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-02 13:18:22,652 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:18:22,653 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:18:22,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 13:18:22,653 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:18:22,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:18:22,654 INFO L85 PathProgramCache]: Analyzing trace with hash -750671160, now seen corresponding path program 1 times [2023-12-02 13:18:22,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:18:22,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460437542] [2023-12-02 13:18:22,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:18:22,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:18:22,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:18:22,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:18:22,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:18:22,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460437542] [2023-12-02 13:18:22,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460437542] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:18:22,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:18:22,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 13:18:22,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483950485] [2023-12-02 13:18:22,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:18:22,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 13:18:22,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:18:22,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 13:18:22,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:18:22,823 INFO L87 Difference]: Start difference. First operand 56 states and 72 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2023-12-02 13:18:22,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:18:22,918 INFO L93 Difference]: Finished difference Result 110 states and 143 transitions. [2023-12-02 13:18:22,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 13:18:22,919 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 20 [2023-12-02 13:18:22,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:18:22,920 INFO L225 Difference]: With dead ends: 110 [2023-12-02 13:18:22,921 INFO L226 Difference]: Without dead ends: 56 [2023-12-02 13:18:22,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:18:22,923 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 62 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:18:22,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 75 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:18:22,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-12-02 13:18:22,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2023-12-02 13:18:22,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 43 states have internal predecessors, (45), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-02 13:18:22,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 71 transitions. [2023-12-02 13:18:22,935 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 71 transitions. Word has length 20 [2023-12-02 13:18:22,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:18:22,935 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 71 transitions. [2023-12-02 13:18:22,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2023-12-02 13:18:22,936 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 71 transitions. [2023-12-02 13:18:22,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 13:18:22,937 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:18:22,937 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 13:18:22,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 13:18:22,938 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:18:22,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:18:22,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1416911569, now seen corresponding path program 1 times [2023-12-02 13:18:22,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:18:22,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796644369] [2023-12-02 13:18:22,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:18:22,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:18:22,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:18:23,021 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 13:18:23,021 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:18:23,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796644369] [2023-12-02 13:18:23,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796644369] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:18:23,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:18:23,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:18:23,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770078853] [2023-12-02 13:18:23,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:18:23,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:18:23,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:18:23,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:18:23,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:18:23,024 INFO L87 Difference]: Start difference. First operand 56 states and 71 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 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) [2023-12-02 13:18:23,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:18:23,088 INFO L93 Difference]: Finished difference Result 149 states and 194 transitions. [2023-12-02 13:18:23,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:18:23,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 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 30 [2023-12-02 13:18:23,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:18:23,090 INFO L225 Difference]: With dead ends: 149 [2023-12-02 13:18:23,090 INFO L226 Difference]: Without dead ends: 95 [2023-12-02 13:18:23,091 INFO L412 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 [2023-12-02 13:18:23,092 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 43 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:18:23,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 117 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 13:18:23,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-12-02 13:18:23,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2023-12-02 13:18:23,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 60 states have (on average 1.2666666666666666) internal successors, (76), 68 states have internal predecessors, (76), 17 states have call successors, (17), 15 states have call predecessors, (17), 15 states have return successors, (23), 15 states have call predecessors, (23), 17 states have call successors, (23) [2023-12-02 13:18:23,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 116 transitions. [2023-12-02 13:18:23,110 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 116 transitions. Word has length 30 [2023-12-02 13:18:23,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:18:23,111 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 116 transitions. [2023-12-02 13:18:23,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 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) [2023-12-02 13:18:23,111 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 116 transitions. [2023-12-02 13:18:23,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-02 13:18:23,112 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:18:23,112 INFO L195 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] [2023-12-02 13:18:23,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 13:18:23,113 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:18:23,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:18:23,113 INFO L85 PathProgramCache]: Analyzing trace with hash -767747420, now seen corresponding path program 1 times [2023-12-02 13:18:23,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:18:23,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361382650] [2023-12-02 13:18:23,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:18:23,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:18:23,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:18:23,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:18:23,374 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:18:23,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361382650] [2023-12-02 13:18:23,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361382650] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:18:23,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:18:23,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-02 13:18:23,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156078978] [2023-12-02 13:18:23,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:18:23,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 13:18:23,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:18:23,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 13:18:23,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-02 13:18:23,377 INFO L87 Difference]: Start difference. First operand 93 states and 116 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 13:18:23,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:18:23,573 INFO L93 Difference]: Finished difference Result 265 states and 330 transitions. [2023-12-02 13:18:23,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 13:18:23,574 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 33 [2023-12-02 13:18:23,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:18:23,577 INFO L225 Difference]: With dead ends: 265 [2023-12-02 13:18:23,577 INFO L226 Difference]: Without dead ends: 174 [2023-12-02 13:18:23,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-02 13:18:23,579 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 119 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:18:23,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 180 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:18:23,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-12-02 13:18:23,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 146. [2023-12-02 13:18:23,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 96 states have (on average 1.25) internal successors, (120), 105 states have internal predecessors, (120), 24 states have call successors, (24), 22 states have call predecessors, (24), 25 states have return successors, (33), 24 states have call predecessors, (33), 24 states have call successors, (33) [2023-12-02 13:18:23,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 177 transitions. [2023-12-02 13:18:23,607 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 177 transitions. Word has length 33 [2023-12-02 13:18:23,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:18:23,608 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 177 transitions. [2023-12-02 13:18:23,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 13:18:23,608 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 177 transitions. [2023-12-02 13:18:23,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 13:18:23,610 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:18:23,610 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:18:23,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 13:18:23,610 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:18:23,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:18:23,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1467566179, now seen corresponding path program 1 times [2023-12-02 13:18:23,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:18:23,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416877093] [2023-12-02 13:18:23,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:18:23,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:18:23,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:18:23,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:18:23,692 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:18:23,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416877093] [2023-12-02 13:18:23,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416877093] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:18:23,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:18:23,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:18:23,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108621795] [2023-12-02 13:18:23,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:18:23,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:18:23,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:18:23,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:18:23,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:18:23,694 INFO L87 Difference]: Start difference. First operand 146 states and 177 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 13:18:23,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:18:23,766 INFO L93 Difference]: Finished difference Result 290 states and 364 transitions. [2023-12-02 13:18:23,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:18:23,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2023-12-02 13:18:23,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:18:23,771 INFO L225 Difference]: With dead ends: 290 [2023-12-02 13:18:23,771 INFO L226 Difference]: Without dead ends: 288 [2023-12-02 13:18:23,772 INFO L412 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 [2023-12-02 13:18:23,773 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 47 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:18:23,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 108 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 13:18:23,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2023-12-02 13:18:23,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2023-12-02 13:18:23,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 189 states have (on average 1.2328042328042328) internal successors, (233), 206 states have internal predecessors, (233), 48 states have call successors, (48), 44 states have call predecessors, (48), 50 states have return successors, (78), 48 states have call predecessors, (78), 48 states have call successors, (78) [2023-12-02 13:18:23,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 359 transitions. [2023-12-02 13:18:23,818 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 359 transitions. Word has length 36 [2023-12-02 13:18:23,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:18:23,818 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 359 transitions. [2023-12-02 13:18:23,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 13:18:23,819 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 359 transitions. [2023-12-02 13:18:23,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-02 13:18:23,822 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:18:23,822 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 13:18:23,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 13:18:23,823 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:18:23,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:18:23,823 INFO L85 PathProgramCache]: Analyzing trace with hash -434988118, now seen corresponding path program 1 times [2023-12-02 13:18:23,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:18:23,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287305648] [2023-12-02 13:18:23,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:18:23,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:18:23,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:18:23,909 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 13:18:23,909 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:18:23,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287305648] [2023-12-02 13:18:23,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287305648] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:18:23,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:18:23,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 13:18:23,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29394676] [2023-12-02 13:18:23,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:18:23,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 13:18:23,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:18:23,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 13:18:23,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:18:23,912 INFO L87 Difference]: Start difference. First operand 288 states and 359 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-02 13:18:24,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:18:24,007 INFO L93 Difference]: Finished difference Result 519 states and 649 transitions. [2023-12-02 13:18:24,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 13:18:24,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 65 [2023-12-02 13:18:24,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:18:24,011 INFO L225 Difference]: With dead ends: 519 [2023-12-02 13:18:24,011 INFO L226 Difference]: Without dead ends: 233 [2023-12-02 13:18:24,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:18:24,013 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 44 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:18:24,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 175 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:18:24,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2023-12-02 13:18:24,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 221. [2023-12-02 13:18:24,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 142 states have (on average 1.2253521126760563) internal successors, (174), 157 states have internal predecessors, (174), 38 states have call successors, (38), 34 states have call predecessors, (38), 40 states have return successors, (60), 37 states have call predecessors, (60), 38 states have call successors, (60) [2023-12-02 13:18:24,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 272 transitions. [2023-12-02 13:18:24,044 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 272 transitions. Word has length 65 [2023-12-02 13:18:24,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:18:24,045 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 272 transitions. [2023-12-02 13:18:24,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-02 13:18:24,045 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 272 transitions. [2023-12-02 13:18:24,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 13:18:24,047 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:18:24,047 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:18:24,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 13:18:24,048 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:18:24,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:18:24,048 INFO L85 PathProgramCache]: Analyzing trace with hash -888993678, now seen corresponding path program 1 times [2023-12-02 13:18:24,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:18:24,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37744233] [2023-12-02 13:18:24,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:18:24,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:18:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:18:24,226 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 13:18:24,226 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:18:24,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37744233] [2023-12-02 13:18:24,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37744233] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:18:24,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577747162] [2023-12-02 13:18:24,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:18:24,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:18:24,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:18:24,231 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:18:24,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 13:18:24,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:18:24,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 13:18:24,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:18:24,475 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 24 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 13:18:24,475 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:18:24,673 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 13:18:24,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577747162] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:18:24,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1690378469] [2023-12-02 13:18:24,693 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2023-12-02 13:18:24,693 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:18:24,698 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:18:24,704 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:18:24,704 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:18:26,859 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 122 for LOIs [2023-12-02 13:18:26,900 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 44 for LOIs [2023-12-02 13:18:27,139 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__lowWaterSensor with input of size 41 for LOIs [2023-12-02 13:18:27,244 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 41 for LOIs [2023-12-02 13:18:27,323 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 42 for LOIs [2023-12-02 13:18:27,334 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:18:30,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1690378469] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:18:30,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:18:30,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [7, 5, 5] total 31 [2023-12-02 13:18:30,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287167390] [2023-12-02 13:18:30,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:18:30,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-02 13:18:30,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:18:30,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-02 13:18:30,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=766, Unknown=0, NotChecked=0, Total=930 [2023-12-02 13:18:30,228 INFO L87 Difference]: Start difference. First operand 221 states and 272 transitions. Second operand has 22 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 18 states have internal predecessors, (33), 6 states have call successors, (7), 4 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-12-02 13:18:33,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:18:33,706 INFO L93 Difference]: Finished difference Result 513 states and 634 transitions. [2023-12-02 13:18:33,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-02 13:18:33,709 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 18 states have internal predecessors, (33), 6 states have call successors, (7), 4 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 73 [2023-12-02 13:18:33,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:18:33,711 INFO L225 Difference]: With dead ends: 513 [2023-12-02 13:18:33,712 INFO L226 Difference]: Without dead ends: 331 [2023-12-02 13:18:33,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 191 SyntacticMatches, 6 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=263, Invalid=1297, Unknown=0, NotChecked=0, Total=1560 [2023-12-02 13:18:33,714 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 104 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 827 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:18:33,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 327 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 827 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-02 13:18:33,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2023-12-02 13:18:33,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 305. [2023-12-02 13:18:33,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 199 states have (on average 1.1959798994974875) internal successors, (238), 216 states have internal predecessors, (238), 50 states have call successors, (50), 46 states have call predecessors, (50), 55 states have return successors, (75), 51 states have call predecessors, (75), 50 states have call successors, (75) [2023-12-02 13:18:33,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 363 transitions. [2023-12-02 13:18:33,763 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 363 transitions. Word has length 73 [2023-12-02 13:18:33,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:18:33,763 INFO L495 AbstractCegarLoop]: Abstraction has 305 states and 363 transitions. [2023-12-02 13:18:33,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 18 states have internal predecessors, (33), 6 states have call successors, (7), 4 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-12-02 13:18:33,763 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 363 transitions. [2023-12-02 13:18:33,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 13:18:33,765 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:18:33,766 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:18:33,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 13:18:33,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:18:33,968 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:18:33,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:18:33,968 INFO L85 PathProgramCache]: Analyzing trace with hash 930619586, now seen corresponding path program 1 times [2023-12-02 13:18:33,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:18:33,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096663030] [2023-12-02 13:18:33,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:18:33,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:18:33,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:18:34,082 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-02 13:18:34,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:18:34,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096663030] [2023-12-02 13:18:34,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096663030] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:18:34,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411734606] [2023-12-02 13:18:34,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:18:34,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:18:34,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:18:34,084 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:18:34,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 13:18:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:18:34,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:18:34,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:18:34,214 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:18:34,214 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:18:34,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411734606] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:18:34,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 13:18:34,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-12-02 13:18:34,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37615262] [2023-12-02 13:18:34,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:18:34,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:18:34,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:18:34,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:18:34,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-02 13:18:34,217 INFO L87 Difference]: Start difference. First operand 305 states and 363 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-02 13:18:34,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:18:34,294 INFO L93 Difference]: Finished difference Result 462 states and 567 transitions. [2023-12-02 13:18:34,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:18:34,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 71 [2023-12-02 13:18:34,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:18:34,298 INFO L225 Difference]: With dead ends: 462 [2023-12-02 13:18:34,298 INFO L226 Difference]: Without dead ends: 280 [2023-12-02 13:18:34,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-02 13:18:34,300 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 33 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:18:34,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 107 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 13:18:34,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-12-02 13:18:34,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2023-12-02 13:18:34,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 183 states have (on average 1.1584699453551912) internal successors, (212), 199 states have internal predecessors, (212), 46 states have call successors, (46), 42 states have call predecessors, (46), 50 states have return successors, (59), 47 states have call predecessors, (59), 46 states have call successors, (59) [2023-12-02 13:18:34,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 317 transitions. [2023-12-02 13:18:34,336 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 317 transitions. Word has length 71 [2023-12-02 13:18:34,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:18:34,337 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 317 transitions. [2023-12-02 13:18:34,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-02 13:18:34,337 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 317 transitions. [2023-12-02 13:18:34,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 13:18:34,338 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:18:34,338 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:18:34,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 13:18:34,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-12-02 13:18:34,539 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:18:34,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:18:34,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1319613117, now seen corresponding path program 1 times [2023-12-02 13:18:34,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:18:34,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154562423] [2023-12-02 13:18:34,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:18:34,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:18:34,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:18:34,760 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 13:18:34,761 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:18:34,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154562423] [2023-12-02 13:18:34,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154562423] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:18:34,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603848203] [2023-12-02 13:18:34,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:18:34,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:18:34,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:18:34,762 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:18:34,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 13:18:34,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:18:34,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-02 13:18:34,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:18:34,983 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 20 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 13:18:34,983 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:18:35,187 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:18:35,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [603848203] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:18:35,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1984697454] [2023-12-02 13:18:35,192 INFO L159 IcfgInterpreter]: Started Sifa with 51 locations of interest [2023-12-02 13:18:35,192 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:18:35,192 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:18:35,193 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:18:35,193 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:18:37,077 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 142 for LOIs [2023-12-02 13:18:37,164 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 34 for LOIs [2023-12-02 13:18:37,610 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__lowWaterSensor with input of size 58 for LOIs [2023-12-02 13:18:37,916 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 56 for LOIs [2023-12-02 13:18:38,106 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 47 for LOIs [2023-12-02 13:18:38,127 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 18 for LOIs [2023-12-02 13:18:38,131 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 47 for LOIs [2023-12-02 13:18:38,165 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:18:42,850 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6773#(and (<= 0 |timeShift___utac_acc__Specification2_spec__2_~tmp~1#1|) (<= |timeShift_isPumpRunning_#res#1| 2147483647) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification2_spec__2_~tmp___0~0#1|) (= |timeShift_isPumpRunning_#res#1| ~pumpRunning~0) (<= 0 ~methAndRunningLastTime~0) (<= 0 |old(~methAndRunningLastTime~0)|) (<= 0 (+ |timeShift_isPumpRunning_#res#1| 2147483648)) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp___0~0#1| 0)) (not (= ~methAndRunningLastTime~0 0)) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp~1#1| 0)) (<= |timeShift___utac_acc__Specification2_spec__2_~tmp~1#1| 2147483647) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~1#1| ~methaneLevelCritical~0))' at error location [2023-12-02 13:18:42,850 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 13:18:42,850 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:18:42,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 9] total 19 [2023-12-02 13:18:42,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498053759] [2023-12-02 13:18:42,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 13:18:42,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-02 13:18:42,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:18:42,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-02 13:18:42,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=288, Invalid=2904, Unknown=0, NotChecked=0, Total=3192 [2023-12-02 13:18:42,855 INFO L87 Difference]: Start difference. First operand 280 states and 317 transitions. Second operand has 19 states, 14 states have (on average 7.428571428571429) internal successors, (104), 14 states have internal predecessors, (104), 6 states have call successors, (27), 7 states have call predecessors, (27), 11 states have return successors, (27), 9 states have call predecessors, (27), 6 states have call successors, (27) [2023-12-02 13:18:43,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:18:43,542 INFO L93 Difference]: Finished difference Result 675 states and 781 transitions. [2023-12-02 13:18:43,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-02 13:18:43,543 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 14 states have (on average 7.428571428571429) internal successors, (104), 14 states have internal predecessors, (104), 6 states have call successors, (27), 7 states have call predecessors, (27), 11 states have return successors, (27), 9 states have call predecessors, (27), 6 states have call successors, (27) Word has length 79 [2023-12-02 13:18:43,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:18:43,544 INFO L225 Difference]: With dead ends: 675 [2023-12-02 13:18:43,544 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 13:18:43,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 190 SyntacticMatches, 5 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1710 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=408, Invalid=4422, Unknown=0, NotChecked=0, Total=4830 [2023-12-02 13:18:43,547 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 162 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 1188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 13:18:43,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 162 Invalid, 1188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 13:18:43,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 13:18:43,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 13:18:43,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:18:43,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 13:18:43,548 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 79 [2023-12-02 13:18:43,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:18:43,548 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 13:18:43,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 14 states have (on average 7.428571428571429) internal successors, (104), 14 states have internal predecessors, (104), 6 states have call successors, (27), 7 states have call predecessors, (27), 11 states have return successors, (27), 9 states have call predecessors, (27), 6 states have call successors, (27) [2023-12-02 13:18:43,548 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 13:18:43,548 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 13:18:43,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 13:18:43,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 13:18:43,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-02 13:18:43,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 13:18:48,843 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 758 765) no Hoare annotation was computed. [2023-12-02 13:18:48,843 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 758 765) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (< |old(~pumpRunning~0)| 1)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1 .cse2) (or .cse0 (not (= ~methaneLevelCritical~0 1)) .cse1 .cse2))) [2023-12-02 13:18:48,843 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 665 671) no Hoare annotation was computed. [2023-12-02 13:18:48,843 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 665 671) the Hoare annotation is: true [2023-12-02 13:18:48,844 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 896 907) the Hoare annotation is: (let ((.cse5 (< ~pumpRunning~0 1)) (.cse1 (= ~methaneLevelCritical~0 1)) (.cse2 (not (= |old(~methaneLevelCritical~0)| 1))) (.cse6 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse0 (not (= ~pumpRunning~0 0))) (.cse7 (= ~methaneLevelCritical~0 0)) (.cse3 (= 0 ~systemActive~0)) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse7 .cse3 .cse4) (or .cse5 .cse1 .cse2 .cse3) (or .cse6 .cse0 .cse7 .cse3 .cse4))) [2023-12-02 13:18:48,844 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 896 907) no Hoare annotation was computed. [2023-12-02 13:18:48,844 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 908 916) the Hoare annotation is: true [2023-12-02 13:18:48,844 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 908 916) no Hoare annotation was computed. [2023-12-02 13:18:48,844 INFO L899 garLoopResultBuilder]: For program point L733(lines 733 741) no Hoare annotation was computed. [2023-12-02 13:18:48,844 INFO L899 garLoopResultBuilder]: For program point L729(lines 729 746) no Hoare annotation was computed. [2023-12-02 13:18:48,844 INFO L899 garLoopResultBuilder]: For program point L180(lines 180 190) no Hoare annotation was computed. [2023-12-02 13:18:48,844 INFO L899 garLoopResultBuilder]: For program point L176(lines 176 193) no Hoare annotation was computed. [2023-12-02 13:18:48,844 INFO L899 garLoopResultBuilder]: For program point L176-1(lines 168 196) no Hoare annotation was computed. [2023-12-02 13:18:48,844 INFO L895 garLoopResultBuilder]: At program point L771(line 771) the Hoare annotation is: (let ((.cse1 (= ~methAndRunningLastTime~0 0)) (.cse6 (<= 1 ~pumpRunning~0)) (.cse3 (< |old(~pumpRunning~0)| 1)) (.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse7 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse4 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse5 .cse3 .cse4) (or .cse6 .cse5 .cse3 .cse4) (or .cse6 .cse2 .cse3 .cse4) (or .cse7 .cse0 .cse2 .cse4) (or .cse7 .cse0 .cse5 .cse4))) [2023-12-02 13:18:48,844 INFO L899 garLoopResultBuilder]: For program point L771-1(line 771) no Hoare annotation was computed. [2023-12-02 13:18:48,845 INFO L899 garLoopResultBuilder]: For program point L181(lines 181 187) no Hoare annotation was computed. [2023-12-02 13:18:48,845 INFO L899 garLoopResultBuilder]: For program point L652-1(lines 652 658) no Hoare annotation was computed. [2023-12-02 13:18:48,845 INFO L895 garLoopResultBuilder]: At program point L739(line 739) the Hoare annotation is: (let ((.cse2 (< |old(~pumpRunning~0)| 1)) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 (= ~methAndRunningLastTime~0 0) .cse1 .cse2 .cse3) (or (<= 1 ~pumpRunning~0) .cse1 .cse2 .cse3) (or .cse4 .cse2 .cse3) (or .cse5 .cse0 .cse4 .cse3) (or .cse5 .cse0 .cse1 .cse3))) [2023-12-02 13:18:48,845 INFO L895 garLoopResultBuilder]: At program point L735(line 735) the Hoare annotation is: (let ((.cse5 (<= 1 ~pumpRunning~0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse3 (< |old(~pumpRunning~0)| 1)) (.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse7 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse4 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (and .cse5 (= |timeShift_processEnvironment_~tmp~8#1| 1)) .cse2 .cse3 .cse4) (or .cse6 (and .cse5 (not (= |timeShift_processEnvironment_~tmp~8#1| 0))) .cse3 .cse4) (or .cse0 .cse1 .cse6 .cse3 .cse4) (or .cse7 .cse0 .cse2 .cse4) (or .cse7 .cse0 .cse6 .cse4))) [2023-12-02 13:18:48,845 INFO L899 garLoopResultBuilder]: For program point L1012(line 1012) no Hoare annotation was computed. [2023-12-02 13:18:48,846 INFO L895 garLoopResultBuilder]: At program point L174(line 174) the Hoare annotation is: (let ((.cse4 (= 0 ~systemActive~0))) (let ((.cse16 (= ~methaneLevelCritical~0 1)) (.cse13 (= ~pumpRunning~0 0)) (.cse17 (not .cse4)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse12 (= ~methAndRunningLastTime~0 0)) (.cse18 (= ~waterLevel~0 1))) (let ((.cse7 (not (= |old(~waterLevel~0)| 1))) (.cse8 (and .cse12 .cse18)) (.cse11 (and .cse0 (not .cse18) .cse12)) (.cse2 (and .cse13 .cse17)) (.cse10 (and .cse13 .cse16 .cse17)) (.cse9 (not .cse16)) (.cse3 (< |old(~pumpRunning~0)| 1)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse7 .cse8 .cse1 .cse4) (or .cse5 .cse6 .cse7 .cse8 .cse9 .cse4) (or .cse5 .cse6 .cse10 .cse11 .cse9 .cse4) (or .cse6 .cse12 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse11 .cse1 .cse2 .cse4) (or .cse10 .cse9 .cse3 .cse4) (let ((.cse14 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse5 .cse6 (and .cse13 .cse12 .cse14) (not (= ~head~0.offset 0)) .cse1 (and (<= 2 ~waterLevel~0) .cse14 (= ~pumpRunning~0 1)) (forall ((|v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5| Int) (|v_ULTIMATE.start_test_~tmp___1~0#1_BEFORE_CALL_5| Int)) (or (< 2147483647 |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5|) (let ((.cse15 (not (= 1 ~systemActive~0)))) (and (or .cse15 (< (+ |v_ULTIMATE.start_test_~tmp___1~0#1_BEFORE_CALL_5| 2147483648) 0) (< 2147483647 |v_ULTIMATE.start_test_~tmp___1~0#1_BEFORE_CALL_5|)) (or .cse15 (= |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5| 0)))) (< (+ 2147483648 |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5|) 0))) .cse4 (< |#StackHeapBarrier| 1) (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4)))))))) [2023-12-02 13:18:48,846 INFO L899 garLoopResultBuilder]: For program point L174-1(line 174) no Hoare annotation was computed. [2023-12-02 13:18:48,846 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 641 664) the Hoare annotation is: (let ((.cse8 (= ~methAndRunningLastTime~0 0))) (let ((.cse4 (and (= ~pumpRunning~0 0) .cse8)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse6 (not (= |old(~waterLevel~0)| 1))) (.cse7 (= ~waterLevel~0 1)) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse11 (<= 1 ~pumpRunning~0)) (.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse9 (< |old(~pumpRunning~0)| 1)) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse5 .cse3 .cse4) (or .cse0 .cse1 .cse6 .cse5 .cse3 .cse7) (or .cse1 .cse8 .cse2 .cse9 .cse3) (or .cse0 .cse1 (not (= ~head~0.offset 0)) .cse5 (forall ((|v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5| Int) (|v_ULTIMATE.start_test_~tmp___1~0#1_BEFORE_CALL_5| Int)) (or (< 2147483647 |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5|) (let ((.cse10 (not (= 1 ~systemActive~0)))) (and (or .cse10 (< (+ |v_ULTIMATE.start_test_~tmp___1~0#1_BEFORE_CALL_5| 2147483648) 0) (< 2147483647 |v_ULTIMATE.start_test_~tmp___1~0#1_BEFORE_CALL_5|)) (or .cse10 (= |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5| 0)))) (< (+ 2147483648 |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5|) 0))) (= |old(~waterLevel~0)| ~waterLevel~0) .cse3 (< |#StackHeapBarrier| 1) (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4))) (or .cse1 .cse8 .cse5 .cse9 .cse3) (or .cse0 .cse1 .cse6 .cse2 .cse3 .cse7) (or .cse11 .cse5 .cse9 .cse3) (or .cse11 .cse2 .cse9 .cse3)))) [2023-12-02 13:18:48,847 INFO L895 garLoopResultBuilder]: At program point L744(line 744) the Hoare annotation is: (let ((.cse4 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse7 (not (= |old(~waterLevel~0)| 1))) (.cse8 (= ~waterLevel~0 1)) (.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse6 (< |old(~pumpRunning~0)| 1)) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse3) (or .cse0 .cse1 .cse5 .cse3 .cse4) (or .cse0 .cse1 .cse7 .cse5 .cse3 .cse8) (or .cse0 .cse1 (not (= ~head~0.offset 0)) .cse5 (forall ((|v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5| Int) (|v_ULTIMATE.start_test_~tmp___1~0#1_BEFORE_CALL_5| Int)) (or (< 2147483647 |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5|) (let ((.cse9 (not (= 1 ~systemActive~0)))) (and (or .cse9 (< (+ |v_ULTIMATE.start_test_~tmp___1~0#1_BEFORE_CALL_5| 2147483648) 0) (< 2147483647 |v_ULTIMATE.start_test_~tmp___1~0#1_BEFORE_CALL_5|)) (or .cse9 (= |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5| 0)))) (< (+ 2147483648 |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5|) 0))) (= |old(~waterLevel~0)| ~waterLevel~0) .cse3 (< |#StackHeapBarrier| 1) (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4))) (or .cse0 .cse1 .cse7 .cse2 .cse3 .cse8) (or .cse2 .cse6 .cse3))) [2023-12-02 13:18:48,847 INFO L899 garLoopResultBuilder]: For program point L744-1(lines 725 749) no Hoare annotation was computed. [2023-12-02 13:18:48,847 INFO L899 garLoopResultBuilder]: For program point L645-1(lines 644 663) no Hoare annotation was computed. [2023-12-02 13:18:48,847 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 641 664) no Hoare annotation was computed. [2023-12-02 13:18:48,847 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1012) no Hoare annotation was computed. [2023-12-02 13:18:48,847 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2023-12-02 13:18:48,848 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2023-12-02 13:18:48,848 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2023-12-02 13:18:48,848 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2023-12-02 13:18:48,848 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2023-12-02 13:18:48,848 INFO L899 garLoopResultBuilder]: For program point L77(lines 52 81) no Hoare annotation was computed. [2023-12-02 13:18:48,848 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 52 81) the Hoare annotation is: true [2023-12-02 13:18:48,848 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2023-12-02 13:18:48,848 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2023-12-02 13:18:48,848 INFO L899 garLoopResultBuilder]: For program point L576(lines 575 622) no Hoare annotation was computed. [2023-12-02 13:18:48,849 INFO L895 garLoopResultBuilder]: At program point L597(line 597) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse7 (= ~methaneLevelCritical~0 0)) (.cse6 (<= 1 ~pumpRunning~0)) (.cse2 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= ~methaneLevelCritical~0 1)) (.cse5 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse1 .cse7 .cse2 .cse3 .cse5) (and .cse0 .cse1 .cse7 .cse2 .cse3 .cse5) (and .cse6 .cse2 .cse3 .cse4 .cse5))) [2023-12-02 13:18:48,849 INFO L899 garLoopResultBuilder]: For program point L626(lines 565 630) no Hoare annotation was computed. [2023-12-02 13:18:48,849 INFO L899 garLoopResultBuilder]: For program point L585(lines 585 591) no Hoare annotation was computed. [2023-12-02 13:18:48,849 INFO L899 garLoopResultBuilder]: For program point L585-1(lines 585 591) no Hoare annotation was computed. [2023-12-02 13:18:48,849 INFO L895 garLoopResultBuilder]: At program point L623(lines 574 624) the Hoare annotation is: false [2023-12-02 13:18:48,849 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 13:18:48,849 INFO L899 garLoopResultBuilder]: For program point L595(lines 595 601) no Hoare annotation was computed. [2023-12-02 13:18:48,849 INFO L899 garLoopResultBuilder]: For program point L595-1(lines 595 601) no Hoare annotation was computed. [2023-12-02 13:18:48,849 INFO L895 garLoopResultBuilder]: At program point L620(lines 575 622) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse7 (= ~methaneLevelCritical~0 0)) (.cse6 (<= 1 ~pumpRunning~0)) (.cse2 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= ~methaneLevelCritical~0 1)) (.cse5 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse1 .cse7 .cse2 .cse3 .cse5) (and .cse0 .cse1 .cse7 .cse2 .cse3 .cse5) (and .cse6 .cse2 .cse3 .cse4 .cse5))) [2023-12-02 13:18:48,850 INFO L895 garLoopResultBuilder]: At program point L587(line 587) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse7 (= ~methaneLevelCritical~0 0)) (.cse6 (<= 1 ~pumpRunning~0)) (.cse2 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= ~methaneLevelCritical~0 1)) (.cse5 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse1 .cse7 .cse2 .cse3 .cse5) (and .cse0 .cse1 .cse7 .cse2 .cse3 .cse5) (and .cse6 .cse2 .cse3 .cse4 .cse5))) [2023-12-02 13:18:48,850 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 13:18:48,850 INFO L899 garLoopResultBuilder]: For program point L142(lines 142 149) no Hoare annotation was computed. [2023-12-02 13:18:48,850 INFO L899 garLoopResultBuilder]: For program point L142-2(lines 142 149) no Hoare annotation was computed. [2023-12-02 13:18:48,850 INFO L895 garLoopResultBuilder]: At program point L613-2(lines 605 618) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0)) (.cse6 (= ~methAndRunningLastTime~0 0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse2 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse3 (= 1 ~systemActive~0)) (.cse7 (= ~methaneLevelCritical~0 1)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse2 .cse3 .cse7 .cse4) (and .cse5 .cse6 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse2 .cse3 .cse7 .cse4))) [2023-12-02 13:18:48,850 INFO L895 garLoopResultBuilder]: At program point L692(line 692) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 (not (= ~methaneLevelCritical~0 1)) .cse2 .cse3) (or (<= 1 ~pumpRunning~0) .cse1 (< |old(~pumpRunning~0)| 1) .cse2))) [2023-12-02 13:18:48,850 INFO L899 garLoopResultBuilder]: For program point L692-1(lines 673 697) no Hoare annotation was computed. [2023-12-02 13:18:48,850 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 673 697) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 1)) .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse2 .cse3) (or (<= 1 ~pumpRunning~0) .cse4 (< |old(~pumpRunning~0)| 1) .cse2))) [2023-12-02 13:18:48,851 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 673 697) no Hoare annotation was computed. [2023-12-02 13:18:48,851 INFO L895 garLoopResultBuilder]: At program point L687(line 687) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (and (or (not (= ~waterLevel~0 1)) (= |processEnvironment__wrappee__highWaterSensor_~tmp~6#1| 0)) (= ~pumpRunning~0 0))) (.cse5 (= 0 ~systemActive~0)) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (not (= ~head~0.offset 0)) .cse1 (forall ((|v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5| Int) (|v_ULTIMATE.start_test_~tmp___1~0#1_BEFORE_CALL_5| Int)) (or (< 2147483647 |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5|) (let ((.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse2 (< (+ |v_ULTIMATE.start_test_~tmp___1~0#1_BEFORE_CALL_5| 2147483648) 0) (< 2147483647 |v_ULTIMATE.start_test_~tmp___1~0#1_BEFORE_CALL_5|)) (or .cse2 (= |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5| 0)))) (< (+ 2147483648 |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5|) 0))) (let ((.cse3 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0))) (and (or (and (not .cse3) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0)) (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 1) .cse3)) (or (and (<= ~waterLevel~0 1) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 1)) (and (<= 2 ~waterLevel~0) .cse3)) (= |processEnvironment__wrappee__highWaterSensor_~tmp~6#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1|))) (< |#StackHeapBarrier| 1) .cse4 (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4))) (or .cse1 (< |old(~pumpRunning~0)| 1) .cse5) (or .cse0 .cse1 .cse6 .cse5 .cse4) (or .cse0 .cse6 (not (= ~methaneLevelCritical~0 1)) .cse5 .cse4))) [2023-12-02 13:18:48,851 INFO L899 garLoopResultBuilder]: For program point L681(lines 681 689) no Hoare annotation was computed. [2023-12-02 13:18:48,851 INFO L899 garLoopResultBuilder]: For program point L677(lines 677 694) no Hoare annotation was computed. [2023-12-02 13:18:48,851 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 884 895) no Hoare annotation was computed. [2023-12-02 13:18:48,851 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 884 895) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= ~head~0.offset 0)) (not (= ~methaneLevelCritical~0 0)) (forall ((|v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5| Int) (|v_ULTIMATE.start_test_~tmp___1~0#1_BEFORE_CALL_5| Int)) (or (< 2147483647 |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5|) (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (< (+ |v_ULTIMATE.start_test_~tmp___1~0#1_BEFORE_CALL_5| 2147483648) 0) (< 2147483647 |v_ULTIMATE.start_test_~tmp___1~0#1_BEFORE_CALL_5|)) (or .cse0 (= |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5| 0)))) (< (+ 2147483648 |v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5|) 0))) (= |old(~waterLevel~0)| ~waterLevel~0) (< |#StackHeapBarrier| 1) (not (= ~methAndRunningLastTime~0 0)) (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4))) [2023-12-02 13:18:48,851 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 699 723) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 1)) .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse2 .cse3) (or (<= 1 ~pumpRunning~0) .cse4 (< |old(~pumpRunning~0)| 1) .cse2))) [2023-12-02 13:18:48,852 INFO L895 garLoopResultBuilder]: At program point L713(line 713) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 (not (= ~methaneLevelCritical~0 1)) .cse2 .cse3) (or (<= 1 ~pumpRunning~0) .cse1 (< |old(~pumpRunning~0)| 1) .cse2))) [2023-12-02 13:18:48,852 INFO L895 garLoopResultBuilder]: At program point L709(line 709) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 (not (= ~methaneLevelCritical~0 1)) .cse2 .cse3) (or (<= 1 ~pumpRunning~0) .cse1 (< |old(~pumpRunning~0)| 1) .cse2))) [2023-12-02 13:18:48,852 INFO L899 garLoopResultBuilder]: For program point L707(lines 707 715) no Hoare annotation was computed. [2023-12-02 13:18:48,852 INFO L899 garLoopResultBuilder]: For program point L703(lines 703 720) no Hoare annotation was computed. [2023-12-02 13:18:48,852 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 699 723) no Hoare annotation was computed. [2023-12-02 13:18:48,852 INFO L895 garLoopResultBuilder]: At program point L718(line 718) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= ~pumpRunning~0 0)) (.cse0 (not (= ~methaneLevelCritical~0 0))) (.cse1 (= 0 ~systemActive~0)) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (< |old(~pumpRunning~0)| 1) .cse1) (or .cse2 .cse3 (not (= ~methaneLevelCritical~0 1)) .cse1 .cse4) (or .cse2 .cse3 .cse0 .cse1 .cse4))) [2023-12-02 13:18:48,852 INFO L899 garLoopResultBuilder]: For program point L718-1(lines 699 723) no Hoare annotation was computed. [2023-12-02 13:18:48,854 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:18:48,856 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 13:18:48,870 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (forall v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5 : int, v_ULTIMATE.start_test_~tmp___1~0#1_BEFORE_CALL_5 : int :: (2147483647 < v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5 || (((!(1 == ~systemActive~0) || v_ULTIMATE.start_test_~tmp___1~0#1_BEFORE_CALL_5 + 2147483648 < 0) || 2147483647 < v_ULTIMATE.start_test_~tmp___1~0#1_BEFORE_CALL_5) && (!(1 == ~systemActive~0) || v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5 == 0))) || 2147483648 + v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5 < 0) could not be translated [2023-12-02 13:18:48,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:18:48 BoogieIcfgContainer [2023-12-02 13:18:48,872 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 13:18:48,872 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 13:18:48,872 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 13:18:48,873 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 13:18:48,873 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:18:22" (3/4) ... [2023-12-02 13:18:48,875 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 13:18:48,878 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2023-12-02 13:18:48,878 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-12-02 13:18:48,879 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-12-02 13:18:48,879 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2023-12-02 13:18:48,879 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-12-02 13:18:48,879 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-12-02 13:18:48,879 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2023-12-02 13:18:48,879 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-12-02 13:18:48,879 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2023-12-02 13:18:48,887 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2023-12-02 13:18:48,888 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-12-02 13:18:48,889 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-12-02 13:18:48,889 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 13:18:48,890 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 13:18:48,916 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((!((\old(pumpRunning) == 0)) || !((\old(methAndRunningLastTime) == 0))) || !((methaneLevelCritical == 1))) || (0 == systemActive)) || ((pumpRunning == 0) && (methAndRunningLastTime == 0))) && ((((!((\old(pumpRunning) == 0)) || !((\old(methAndRunningLastTime) == 0))) || !((methaneLevelCritical == 0))) || (0 == systemActive)) || ((pumpRunning == 0) && (methAndRunningLastTime == 0)))) && (((((!((\old(pumpRunning) == 0)) || !((\old(methAndRunningLastTime) == 0))) || !((\old(waterLevel) == 1))) || !((methaneLevelCritical == 0))) || (0 == systemActive)) || (waterLevel == 1))) && ((((!((\old(methAndRunningLastTime) == 0)) || (methAndRunningLastTime == 0)) || !((methaneLevelCritical == 1))) || (\old(pumpRunning) < 1)) || (0 == systemActive))) && ((((!((\old(methAndRunningLastTime) == 0)) || (methAndRunningLastTime == 0)) || !((methaneLevelCritical == 0))) || (\old(pumpRunning) < 1)) || (0 == systemActive))) && (((((!((\old(pumpRunning) == 0)) || !((\old(methAndRunningLastTime) == 0))) || !((\old(waterLevel) == 1))) || !((methaneLevelCritical == 1))) || (0 == systemActive)) || (waterLevel == 1))) && ((((1 <= pumpRunning) || !((methaneLevelCritical == 0))) || (\old(pumpRunning) < 1)) || (0 == systemActive))) && ((((1 <= pumpRunning) || !((methaneLevelCritical == 1))) || (\old(pumpRunning) < 1)) || (0 == systemActive))) [2023-12-02 13:18:48,961 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((!((\old(pumpRunning) == 0)) || !((\old(methAndRunningLastTime) == 0))) || !((methaneLevelCritical == 1))) || (0 == systemActive)) || ((pumpRunning == 0) && (methAndRunningLastTime == 0))) && ((((!((\old(pumpRunning) == 0)) || !((\old(methAndRunningLastTime) == 0))) || !((methaneLevelCritical == 0))) || (0 == systemActive)) || ((pumpRunning == 0) && (methAndRunningLastTime == 0)))) && (((((!((\old(pumpRunning) == 0)) || !((\old(methAndRunningLastTime) == 0))) || !((\old(waterLevel) == 1))) || !((methaneLevelCritical == 0))) || (0 == systemActive)) || (waterLevel == 1))) && ((((!((\old(methAndRunningLastTime) == 0)) || (methAndRunningLastTime == 0)) || !((methaneLevelCritical == 1))) || (\old(pumpRunning) < 1)) || (0 == systemActive))) && ((((!((\old(methAndRunningLastTime) == 0)) || (methAndRunningLastTime == 0)) || !((methaneLevelCritical == 0))) || (\old(pumpRunning) < 1)) || (0 == systemActive))) && (((((!((\old(pumpRunning) == 0)) || !((\old(methAndRunningLastTime) == 0))) || !((\old(waterLevel) == 1))) || !((methaneLevelCritical == 1))) || (0 == systemActive)) || (waterLevel == 1))) && ((((1 <= pumpRunning) || !((methaneLevelCritical == 0))) || (\old(pumpRunning) < 1)) || (0 == systemActive))) && ((((1 <= pumpRunning) || !((methaneLevelCritical == 1))) || (\old(pumpRunning) < 1)) || (0 == systemActive))) [2023-12-02 13:18:49,009 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 13:18:49,010 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 13:18:49,010 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 13:18:49,011 INFO L158 Benchmark]: Toolchain (without parser) took 27961.21ms. Allocated memory was 155.2MB in the beginning and 536.9MB in the end (delta: 381.7MB). Free memory was 118.2MB in the beginning and 499.1MB in the end (delta: -380.9MB). Peak memory consumption was 320.4MB. Max. memory is 16.1GB. [2023-12-02 13:18:49,011 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 107.0MB. Free memory is still 53.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:18:49,011 INFO L158 Benchmark]: CACSL2BoogieTranslator took 412.59ms. Allocated memory is still 155.2MB. Free memory was 118.2MB in the beginning and 98.3MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-02 13:18:49,012 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.02ms. Allocated memory is still 155.2MB. Free memory was 98.3MB in the beginning and 95.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:18:49,012 INFO L158 Benchmark]: Boogie Preprocessor took 32.05ms. Allocated memory is still 155.2MB. Free memory was 95.9MB in the beginning and 94.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:18:49,012 INFO L158 Benchmark]: RCFGBuilder took 520.44ms. Allocated memory is still 155.2MB. Free memory was 94.2MB in the beginning and 109.8MB in the end (delta: -15.6MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2023-12-02 13:18:49,013 INFO L158 Benchmark]: TraceAbstraction took 26799.50ms. Allocated memory was 155.2MB in the beginning and 536.9MB in the end (delta: 381.7MB). Free memory was 108.9MB in the beginning and 188.2MB in the end (delta: -79.3MB). Peak memory consumption was 310.6MB. Max. memory is 16.1GB. [2023-12-02 13:18:49,013 INFO L158 Benchmark]: Witness Printer took 137.73ms. Allocated memory is still 536.9MB. Free memory was 188.2MB in the beginning and 499.1MB in the end (delta: -310.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-02 13:18:49,015 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 107.0MB. Free memory is still 53.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 412.59ms. Allocated memory is still 155.2MB. Free memory was 118.2MB in the beginning and 98.3MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.02ms. Allocated memory is still 155.2MB. Free memory was 98.3MB in the beginning and 95.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.05ms. Allocated memory is still 155.2MB. Free memory was 95.9MB in the beginning and 94.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 520.44ms. Allocated memory is still 155.2MB. Free memory was 94.2MB in the beginning and 109.8MB in the end (delta: -15.6MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. * TraceAbstraction took 26799.50ms. Allocated memory was 155.2MB in the beginning and 536.9MB in the end (delta: 381.7MB). Free memory was 108.9MB in the beginning and 188.2MB in the end (delta: -79.3MB). Peak memory consumption was 310.6MB. Max. memory is 16.1GB. * Witness Printer took 137.73ms. Allocated memory is still 536.9MB. Free memory was 188.2MB in the beginning and 499.1MB in the end (delta: -310.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] - GenericResultAtLocation [Line: 155]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [155] - GenericResultAtLocation [Line: 197]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [197] - GenericResultAtLocation [Line: 563]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [563] - GenericResultAtLocation [Line: 631]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [631] - GenericResultAtLocation [Line: 868]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [868] - GenericResultAtLocation [Line: 972]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [972] - GenericResultAtLocation [Line: 1007]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1007] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (forall v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5 : int, v_ULTIMATE.start_test_~tmp___1~0#1_BEFORE_CALL_5 : int :: (2147483647 < v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5 || (((!(1 == ~systemActive~0) || v_ULTIMATE.start_test_~tmp___1~0#1_BEFORE_CALL_5 + 2147483648 < 0) || 2147483647 < v_ULTIMATE.start_test_~tmp___1~0#1_BEFORE_CALL_5) && (!(1 == ~systemActive~0) || v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5 == 0))) || 2147483648 + v_ULTIMATE.start_test_~tmp___2~0#1_BEFORE_CALL_5 < 0) could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1012]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 26.7s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 633 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 621 mSDsluCounter, 1427 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 830 mSDsCounter, 252 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2267 IncrementalHoareTripleChecker+Invalid, 2519 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 252 mSolverCounterUnsat, 597 mSDtfsCounter, 2267 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 608 GetRequests, 473 SyntacticMatches, 11 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2259 ImplicationChecksByTransitivity, 10.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=305occurred in iteration=8, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 68 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 27 LocationsWithAnnotation, 684 PreInvPairs, 731 NumberOfFragments, 1887 HoareAnnotationTreeSize, 684 FomulaSimplifications, 1925 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 27 FomulaSimplificationsInter, 15960 FormulaSimplificationTreeSizeReductionInter, 4.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 665 NumberOfCodeBlocks, 665 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 802 ConstructedInterpolants, 0 QuantifiedInterpolants, 1599 SizeOfPredicates, 8 NumberOfNonLiveVariables, 885 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 248/277 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: OVERALL_TIME: 2.6s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 46, DAG_INTERPRETER_EARLY_EXITS: 4, TOOLS_POST_APPLICATIONS: 56, TOOLS_POST_TIME: 1.1s, TOOLS_POST_CALL_APPLICATIONS: 29, TOOLS_POST_CALL_TIME: 0.8s, TOOLS_POST_RETURN_APPLICATIONS: 24, TOOLS_POST_RETURN_TIME: 0.3s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 107, TOOLS_QUANTIFIERELIM_TIME: 2.1s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.2s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 138, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 19, DOMAIN_JOIN_TIME: 0.4s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 1, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 46, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 1.3s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 1.3s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1, CALL_SUMMARIZER_APPLICATIONS: 24, CALL_SUMMARIZER_CACHE_MISSES: 5, CALL_SUMMARIZER_OVERALL_TIME: 0.1s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.1s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 671, DAG_COMPRESSION_RETAINED_NODES: 136, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 574]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 575]: Loop Invariant Derived loop invariant: (((((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (tmp == 1)) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (splverifierCounter == 0)) || ((((((1 <= pumpRunning) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (tmp == 1)) && (1 == systemActive)) && (splverifierCounter == 0))) || ((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (tmp == 1)) && (1 == systemActive)) && (splverifierCounter == 0))) || (((((1 <= pumpRunning) && (tmp == 1)) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (splverifierCounter == 0))) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 641]: Loop Invariant Derived loop invariant: (((((((((((!((\old(pumpRunning) == 0)) || !((\old(methAndRunningLastTime) == 0))) || !((methaneLevelCritical == 1))) || (0 == systemActive)) || ((pumpRunning == 0) && (methAndRunningLastTime == 0))) && ((((!((\old(pumpRunning) == 0)) || !((\old(methAndRunningLastTime) == 0))) || !((methaneLevelCritical == 0))) || (0 == systemActive)) || ((pumpRunning == 0) && (methAndRunningLastTime == 0)))) && (((((!((\old(pumpRunning) == 0)) || !((\old(methAndRunningLastTime) == 0))) || !((\old(waterLevel) == 1))) || !((methaneLevelCritical == 0))) || (0 == systemActive)) || (waterLevel == 1))) && ((((!((\old(methAndRunningLastTime) == 0)) || (methAndRunningLastTime == 0)) || !((methaneLevelCritical == 1))) || (\old(pumpRunning) < 1)) || (0 == systemActive))) && ((((!((\old(methAndRunningLastTime) == 0)) || (methAndRunningLastTime == 0)) || !((methaneLevelCritical == 0))) || (\old(pumpRunning) < 1)) || (0 == systemActive))) && (((((!((\old(pumpRunning) == 0)) || !((\old(methAndRunningLastTime) == 0))) || !((\old(waterLevel) == 1))) || !((methaneLevelCritical == 1))) || (0 == systemActive)) || (waterLevel == 1))) && ((((1 <= pumpRunning) || !((methaneLevelCritical == 0))) || (\old(pumpRunning) < 1)) || (0 == systemActive))) && ((((1 <= pumpRunning) || !((methaneLevelCritical == 1))) || (\old(pumpRunning) < 1)) || (0 == systemActive))) RESULT: Ultimate proved your program to be correct! [2023-12-02 13:18:49,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4d811c-f6e5-46c5-a1fc-c12b0a47af9d/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE