./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product16.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6321b8e-4dae-4edb-ac1c-d16f89fb04b7/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6321b8e-4dae-4edb-ac1c-d16f89fb04b7/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6321b8e-4dae-4edb-ac1c-d16f89fb04b7/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6321b8e-4dae-4edb-ac1c-d16f89fb04b7/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product16.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6321b8e-4dae-4edb-ac1c-d16f89fb04b7/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6321b8e-4dae-4edb-ac1c-d16f89fb04b7/bin/utaipan-verify-sOmjnqqW8E --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 2ec66100f9e2ac4db263cd9becb832e73074b4f7ebe73780c502623dad07d2b6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 02:53:55,554 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 02:53:55,651 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6321b8e-4dae-4edb-ac1c-d16f89fb04b7/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 02:53:55,660 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 02:53:55,660 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 02:53:55,689 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 02:53:55,690 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 02:53:55,690 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 02:53:55,690 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 02:53:55,690 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 02:53:55,690 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 02:53:55,690 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 02:53:55,690 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 02:53:55,691 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 02:53:55,691 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 02:53:55,691 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 02:53:55,691 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 02:53:55,691 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 02:53:55,691 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 02:53:55,691 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 02:53:55,691 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 02:53:55,692 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 02:53:55,692 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 02:53:55,692 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 02:53:55,692 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 02:53:55,692 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 02:53:55,692 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 02:53:55,692 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 02:53:55,692 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 02:53:55,693 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 02:53:55,693 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 02:53:55,693 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 02:53:55,693 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 02:53:55,693 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 02:53:55,693 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 02:53:55,693 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 02:53:55,693 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 02:53:55,693 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 02:53:55,694 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:53:55,694 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 02:53:55,694 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 02:53:55,694 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 02:53:55,694 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 02:53:55,694 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 02:53:55,694 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 02:53:55,694 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 02:53:55,699 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 02:53:55,700 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_c6321b8e-4dae-4edb-ac1c-d16f89fb04b7/bin/utaipan-verify-sOmjnqqW8E 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 -> 2ec66100f9e2ac4db263cd9becb832e73074b4f7ebe73780c502623dad07d2b6 [2024-11-14 02:53:55,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 02:53:55,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 02:53:55,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 02:53:55,988 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 02:53:55,989 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 02:53:55,990 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6321b8e-4dae-4edb-ac1c-d16f89fb04b7/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/product-lines/minepump_spec4_product16.cil.c Unable to find full path for "g++" [2024-11-14 02:53:57,962 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 02:53:58,214 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 02:53:58,218 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6321b8e-4dae-4edb-ac1c-d16f89fb04b7/sv-benchmarks/c/product-lines/minepump_spec4_product16.cil.c [2024-11-14 02:53:58,236 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6321b8e-4dae-4edb-ac1c-d16f89fb04b7/bin/utaipan-verify-sOmjnqqW8E/data/762cce751/fe33cd983e6047faace9956c7dc10f4c/FLAG8a5da0add [2024-11-14 02:53:58,258 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6321b8e-4dae-4edb-ac1c-d16f89fb04b7/bin/utaipan-verify-sOmjnqqW8E/data/762cce751/fe33cd983e6047faace9956c7dc10f4c [2024-11-14 02:53:58,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 02:53:58,264 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 02:53:58,265 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 02:53:58,266 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 02:53:58,274 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 02:53:58,274 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:53:58" (1/1) ... [2024-11-14 02:53:58,275 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5303897 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:53:58, skipping insertion in model container [2024-11-14 02:53:58,276 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:53:58" (1/1) ... [2024-11-14 02:53:58,322 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 02:53:58,657 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6321b8e-4dae-4edb-ac1c-d16f89fb04b7/sv-benchmarks/c/product-lines/minepump_spec4_product16.cil.c[14184,14197] [2024-11-14 02:53:58,693 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:53:58,706 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 02:53:58,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2024-11-14 02:53:58,716 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [87] [2024-11-14 02:53:58,716 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [453] [2024-11-14 02:53:58,716 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [539] [2024-11-14 02:53:58,717 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [638] [2024-11-14 02:53:58,717 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [647] [2024-11-14 02:53:58,717 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [826] [2024-11-14 02:53:58,717 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [852] [2024-11-14 02:53:58,763 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6321b8e-4dae-4edb-ac1c-d16f89fb04b7/sv-benchmarks/c/product-lines/minepump_spec4_product16.cil.c[14184,14197] [2024-11-14 02:53:58,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:53:58,791 INFO L204 MainTranslator]: Completed translation [2024-11-14 02:53:58,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:53:58 WrapperNode [2024-11-14 02:53:58,792 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 02:53:58,793 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 02:53:58,793 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 02:53:58,793 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 02:53:58,800 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:53:58" (1/1) ... [2024-11-14 02:53:58,811 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:53:58" (1/1) ... [2024-11-14 02:53:58,832 INFO L138 Inliner]: procedures = 53, calls = 97, calls flagged for inlining = 21, calls inlined = 17, statements flattened = 165 [2024-11-14 02:53:58,832 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 02:53:58,833 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 02:53:58,833 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 02:53:58,833 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 02:53:58,841 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:53:58" (1/1) ... [2024-11-14 02:53:58,841 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:53:58" (1/1) ... [2024-11-14 02:53:58,843 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:53:58" (1/1) ... [2024-11-14 02:53:58,843 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:53:58" (1/1) ... [2024-11-14 02:53:58,848 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:53:58" (1/1) ... [2024-11-14 02:53:58,852 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:53:58" (1/1) ... [2024-11-14 02:53:58,854 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:53:58" (1/1) ... [2024-11-14 02:53:58,854 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:53:58" (1/1) ... [2024-11-14 02:53:58,856 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 02:53:58,857 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 02:53:58,857 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 02:53:58,857 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 02:53:58,864 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:53:58" (1/1) ... [2024-11-14 02:53:58,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:53:58,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6321b8e-4dae-4edb-ac1c-d16f89fb04b7/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:53:58,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6321b8e-4dae-4edb-ac1c-d16f89fb04b7/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 02:53:58,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6321b8e-4dae-4edb-ac1c-d16f89fb04b7/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 02:53:58,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 02:53:58,949 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-14 02:53:58,949 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-14 02:53:58,949 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-14 02:53:58,950 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-14 02:53:58,950 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-14 02:53:58,950 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-14 02:53:58,950 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-11-14 02:53:58,950 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-11-14 02:53:58,950 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-11-14 02:53:58,950 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-11-14 02:53:58,950 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-14 02:53:58,950 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-14 02:53:58,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 02:53:58,950 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-14 02:53:58,951 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-14 02:53:58,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 02:53:58,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 02:53:59,048 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 02:53:59,050 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 02:53:59,340 INFO L? ?]: Removed 32 outVars from TransFormulas that were not future-live. [2024-11-14 02:53:59,340 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 02:53:59,445 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 02:53:59,445 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-14 02:53:59,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:53:59 BoogieIcfgContainer [2024-11-14 02:53:59,446 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 02:53:59,449 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 02:53:59,449 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 02:53:59,454 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 02:53:59,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 02:53:58" (1/3) ... [2024-11-14 02:53:59,455 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72f7ced6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:53:59, skipping insertion in model container [2024-11-14 02:53:59,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:53:58" (2/3) ... [2024-11-14 02:53:59,455 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72f7ced6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:53:59, skipping insertion in model container [2024-11-14 02:53:59,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:53:59" (3/3) ... [2024-11-14 02:53:59,457 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product16.cil.c [2024-11-14 02:53:59,473 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 02:53:59,475 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec4_product16.cil.c that has 8 procedures, 56 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-14 02:53:59,532 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 02:53:59,546 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=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;@14af4237, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 02:53:59,546 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 02:53:59,551 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 43 states have internal predecessors, (52), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-14 02:53:59,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-14 02:53:59,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:53:59,560 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:53:59,561 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:53:59,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:53:59,567 INFO L85 PathProgramCache]: Analyzing trace with hash 2143896614, now seen corresponding path program 1 times [2024-11-14 02:53:59,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:53:59,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681019169] [2024-11-14 02:53:59,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:53:59,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:53:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:53:59,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:53:59,773 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:53:59,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681019169] [2024-11-14 02:53:59,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681019169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:53:59,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:53:59,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 02:53:59,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955801104] [2024-11-14 02:53:59,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:53:59,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 02:53:59,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:53:59,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 02:53:59,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 02:53:59,800 INFO L87 Difference]: Start difference. First operand has 56 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 43 states have internal predecessors, (52), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:53:59,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:53:59,865 INFO L93 Difference]: Finished difference Result 110 states and 149 transitions. [2024-11-14 02:53:59,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 02:53:59,867 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-14 02:53:59,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:53:59,874 INFO L225 Difference]: With dead ends: 110 [2024-11-14 02:53:59,875 INFO L226 Difference]: Without dead ends: 51 [2024-11-14 02:53:59,878 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 02:53:59,881 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 02:53:59,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 02:53:59,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-14 02:53:59,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-14 02:53:59,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 39 states have internal predecessors, (44), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 02:53:59,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 65 transitions. [2024-11-14 02:53:59,916 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 65 transitions. Word has length 12 [2024-11-14 02:53:59,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:53:59,917 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 65 transitions. [2024-11-14 02:53:59,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:53:59,917 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 65 transitions. [2024-11-14 02:53:59,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-14 02:53:59,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:53:59,919 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:53:59,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 02:53:59,919 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:53:59,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:53:59,920 INFO L85 PathProgramCache]: Analyzing trace with hash 426909971, now seen corresponding path program 1 times [2024-11-14 02:53:59,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:53:59,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67160803] [2024-11-14 02:53:59,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:53:59,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:53:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:54:00,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:54:00,100 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:54:00,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67160803] [2024-11-14 02:54:00,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67160803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:54:00,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:54:00,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:54:00,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077964537] [2024-11-14 02:54:00,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:54:00,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:54:00,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:54:00,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:54:00,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:54:00,104 INFO L87 Difference]: Start difference. First operand 51 states and 65 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:54:00,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:54:00,159 INFO L93 Difference]: Finished difference Result 74 states and 92 transitions. [2024-11-14 02:54:00,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:54:00,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-14 02:54:00,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:54:00,160 INFO L225 Difference]: With dead ends: 74 [2024-11-14 02:54:00,160 INFO L226 Difference]: Without dead ends: 43 [2024-11-14 02:54:00,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:54:00,162 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 14 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 02:54:00,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 66 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 02:54:00,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-14 02:54:00,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-11-14 02:54:00,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 34 states have internal predecessors, (38), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 02:54:00,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2024-11-14 02:54:00,169 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 54 transitions. Word has length 13 [2024-11-14 02:54:00,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:54:00,170 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 54 transitions. [2024-11-14 02:54:00,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:54:00,170 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 54 transitions. [2024-11-14 02:54:00,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-14 02:54:00,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:54:00,171 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:54:00,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 02:54:00,171 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:54:00,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:54:00,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1975502723, now seen corresponding path program 1 times [2024-11-14 02:54:00,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:54:00,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207984202] [2024-11-14 02:54:00,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:54:00,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:54:00,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:54:00,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:54:00,259 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:54:00,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207984202] [2024-11-14 02:54:00,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207984202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:54:00,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:54:00,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:54:00,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366987757] [2024-11-14 02:54:00,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:54:00,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:54:00,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:54:00,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:54:00,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:54:00,266 INFO L87 Difference]: Start difference. First operand 43 states and 54 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:54:00,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:54:00,353 INFO L93 Difference]: Finished difference Result 125 states and 159 transitions. [2024-11-14 02:54:00,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:54:00,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-14 02:54:00,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:54:00,356 INFO L225 Difference]: With dead ends: 125 [2024-11-14 02:54:00,356 INFO L226 Difference]: Without dead ends: 84 [2024-11-14 02:54:00,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:54:00,357 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 48 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:54:00,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 85 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:54:00,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-14 02:54:00,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 81. [2024-11-14 02:54:00,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 52 states have (on average 1.3653846153846154) internal successors, (71), 63 states have internal predecessors, (71), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 02:54:00,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 103 transitions. [2024-11-14 02:54:00,378 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 103 transitions. Word has length 16 [2024-11-14 02:54:00,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:54:00,378 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 103 transitions. [2024-11-14 02:54:00,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:54:00,379 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 103 transitions. [2024-11-14 02:54:00,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-14 02:54:00,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:54:00,380 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:54:00,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 02:54:00,381 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:54:00,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:54:00,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1148825245, now seen corresponding path program 1 times [2024-11-14 02:54:00,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:54:00,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787712386] [2024-11-14 02:54:00,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:54:00,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:54:00,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:54:00,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:54:00,511 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:54:00,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787712386] [2024-11-14 02:54:00,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787712386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:54:00,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:54:00,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:54:00,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562692323] [2024-11-14 02:54:00,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:54:00,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 02:54:00,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:54:00,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 02:54:00,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:54:00,513 INFO L87 Difference]: Start difference. First operand 81 states and 103 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:54:00,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:54:00,576 INFO L93 Difference]: Finished difference Result 138 states and 179 transitions. [2024-11-14 02:54:00,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 02:54:00,577 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-14 02:54:00,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:54:00,578 INFO L225 Difference]: With dead ends: 138 [2024-11-14 02:54:00,578 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 02:54:00,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:54:00,580 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 21 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 02:54:00,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 46 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 02:54:00,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 02:54:00,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 02:54:00,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:54:00,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 02:54:00,582 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2024-11-14 02:54:00,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:54:00,582 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 02:54:00,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:54:00,582 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 02:54:00,582 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 02:54:00,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 02:54:00,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 02:54:00,592 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-14 02:54:00,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 02:54:00,904 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 02:54:00,935 WARN L162 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (= |old(~pumpRunning~0)| 0)) Eliminated clause: (= ~pumpRunning~0 0) [2024-11-14 02:54:00,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 02:54:00 BoogieIcfgContainer [2024-11-14 02:54:00,939 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 02:54:00,940 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 02:54:00,940 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 02:54:00,940 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 02:54:00,941 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:53:59" (3/4) ... [2024-11-14 02:54:00,943 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 02:54:00,947 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-14 02:54:00,947 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-14 02:54:00,947 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-14 02:54:00,947 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-14 02:54:00,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-14 02:54:00,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-11-14 02:54:00,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-11-14 02:54:00,953 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2024-11-14 02:54:00,954 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-14 02:54:00,954 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-14 02:54:00,955 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 02:54:00,955 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 02:54:00,982 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0) && (\old(pumpRunning) == 0)) [2024-11-14 02:54:01,028 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0) && (\old(pumpRunning) == 0)) [2024-11-14 02:54:01,077 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6321b8e-4dae-4edb-ac1c-d16f89fb04b7/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 02:54:01,077 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6321b8e-4dae-4edb-ac1c-d16f89fb04b7/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 02:54:01,077 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 02:54:01,078 INFO L158 Benchmark]: Toolchain (without parser) took 2815.05ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 86.2MB in the end (delta: 5.4MB). Peak memory consumption was 68.8MB. Max. memory is 16.1GB. [2024-11-14 02:54:01,079 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 83.9MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:54:01,080 INFO L158 Benchmark]: CACSL2BoogieTranslator took 527.30ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 73.5MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 02:54:01,080 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.23ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 71.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:54:01,081 INFO L158 Benchmark]: Boogie Preprocessor took 23.62ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 70.7MB in the end (delta: 1.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 02:54:01,082 INFO L158 Benchmark]: RCFGBuilder took 589.02ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 49.4MB in the end (delta: 21.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 02:54:01,082 INFO L158 Benchmark]: TraceAbstraction took 1490.00ms. Allocated memory is still 117.4MB. Free memory was 49.0MB in the beginning and 34.8MB in the end (delta: 14.3MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2024-11-14 02:54:01,083 INFO L158 Benchmark]: Witness Printer took 137.97ms. Allocated memory is still 117.4MB. Free memory was 34.8MB in the beginning and 86.2MB in the end (delta: -51.5MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2024-11-14 02:54:01,085 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 83.9MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 527.30ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 73.5MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.23ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 71.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.62ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 70.7MB in the end (delta: 1.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 589.02ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 49.4MB in the end (delta: 21.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1490.00ms. Allocated memory is still 117.4MB. Free memory was 49.0MB in the beginning and 34.8MB in the end (delta: 14.3MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. * Witness Printer took 137.97ms. Allocated memory is still 117.4MB. Free memory was 34.8MB in the beginning and 86.2MB in the end (delta: -51.5MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [87] - GenericResultAtLocation [Line: 453]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [453] - GenericResultAtLocation [Line: 539]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [539] - GenericResultAtLocation [Line: 638]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [638] - GenericResultAtLocation [Line: 647]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [647] - GenericResultAtLocation [Line: 826]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [826] - GenericResultAtLocation [Line: 852]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [852] * 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: 643]: 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 8 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 87 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 252 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 87 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 94 IncrementalHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 165 mSDtfsCounter, 94 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred in iteration=3, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 862]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 747]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 863]: Loop Invariant Derived loop invariant: ((pumpRunning == 0) && (splverifierCounter == 0)) - InvariantResult [Line: 657]: Location Invariant Derived location invariant: ((pumpRunning == 0) && (\old(pumpRunning) == 0)) - InvariantResult [Line: 552]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 739]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: 0 Ensures: (0 && (((((head == \old(head)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 486]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (pumpRunning == 0) Ensures: ((pumpRunning == 0) && (((((head == \old(head)) && (waterLevel == \old(waterLevel))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 657]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (pumpRunning == 0) Ensures: (((pumpRunning == 0) && (\old(pumpRunning) == 0)) && ((((head == \old(head)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 542]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((head == \old(head)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 474]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (pumpRunning == 0) Ensures: ((pumpRunning == 0) && (((((head == \old(head)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 681]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Requires: (pumpRunning == 0) Ensures: ((pumpRunning == 0) && ((((((head == \old(head)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 747]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: 0 Ensures: (0 && ((((((head == \old(head)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) RESULT: Ultimate proved your program to be correct! [2024-11-14 02:54:01,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6321b8e-4dae-4edb-ac1c-d16f89fb04b7/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE