./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product02.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_e3ce5b5a-9742-46dc-b5dc-377ee35837eb/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ce5b5a-9742-46dc-b5dc-377ee35837eb/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ce5b5a-9742-46dc-b5dc-377ee35837eb/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ce5b5a-9742-46dc-b5dc-377ee35837eb/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product02.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ce5b5a-9742-46dc-b5dc-377ee35837eb/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ce5b5a-9742-46dc-b5dc-377ee35837eb/bin/utaipan-verify-YMUCfTKeje --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 653672bd839f3a147b3f28538328e3e5032963608595336a23f534aa316d712b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:51:21,535 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:51:21,649 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ce5b5a-9742-46dc-b5dc-377ee35837eb/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 04:51:21,660 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:51:21,661 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:51:21,715 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:51:21,716 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:51:21,717 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:51:21,718 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:51:21,720 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:51:21,722 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:51:21,723 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:51:21,724 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:51:21,724 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:51:21,724 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:51:21,725 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:51:21,725 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:51:21,730 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:51:21,730 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:51:21,731 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:51:21,731 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:51:21,733 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:51:21,736 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:51:21,737 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:51:21,737 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:51:21,740 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:51:21,741 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:51:21,741 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:51:21,741 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:51:21,742 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:51:21,742 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:51:21,742 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:51:21,743 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:51:21,743 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:51:21,743 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:51:21,744 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:51:21,744 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:51:21,744 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:51:21,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:51:21,747 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:51:21,747 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:51:21,748 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:51:21,748 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:51:21,748 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:51:21,749 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:51:21,749 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:51:21,750 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:51:21,750 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_e3ce5b5a-9742-46dc-b5dc-377ee35837eb/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ce5b5a-9742-46dc-b5dc-377ee35837eb/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 653672bd839f3a147b3f28538328e3e5032963608595336a23f534aa316d712b [2024-11-09 04:51:22,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:51:22,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:51:22,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:51:22,169 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:51:22,169 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:51:22,171 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ce5b5a-9742-46dc-b5dc-377ee35837eb/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/product-lines/minepump_spec2_product02.cil.c Unable to find full path for "g++" [2024-11-09 04:51:24,725 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:51:25,071 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:51:25,072 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ce5b5a-9742-46dc-b5dc-377ee35837eb/sv-benchmarks/c/product-lines/minepump_spec2_product02.cil.c [2024-11-09 04:51:25,089 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ce5b5a-9742-46dc-b5dc-377ee35837eb/bin/utaipan-verify-YMUCfTKeje/data/fe5a439b6/a59d36ca24d644d2b7cad99a4764b8eb/FLAG722dfe364 [2024-11-09 04:51:25,112 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ce5b5a-9742-46dc-b5dc-377ee35837eb/bin/utaipan-verify-YMUCfTKeje/data/fe5a439b6/a59d36ca24d644d2b7cad99a4764b8eb [2024-11-09 04:51:25,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:51:25,117 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:51:25,119 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:51:25,119 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:51:25,126 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:51:25,127 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:51:25" (1/1) ... [2024-11-09 04:51:25,129 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76a57f23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:51:25, skipping insertion in model container [2024-11-09 04:51:25,129 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:51:25" (1/1) ... [2024-11-09 04:51:25,181 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:51:25,631 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_e3ce5b5a-9742-46dc-b5dc-377ee35837eb/sv-benchmarks/c/product-lines/minepump_spec2_product02.cil.c[17174,17187] [2024-11-09 04:51:25,640 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:51:25,664 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:51:25,677 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2024-11-09 04:51:25,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] [2024-11-09 04:51:25,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [173] [2024-11-09 04:51:25,680 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [214] [2024-11-09 04:51:25,680 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [580] [2024-11-09 04:51:25,680 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [680] [2024-11-09 04:51:25,681 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [798] [2024-11-09 04:51:25,681 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [865] [2024-11-09 04:51:25,750 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_e3ce5b5a-9742-46dc-b5dc-377ee35837eb/sv-benchmarks/c/product-lines/minepump_spec2_product02.cil.c[17174,17187] [2024-11-09 04:51:25,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:51:25,777 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:51:25,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:51:25 WrapperNode [2024-11-09 04:51:25,777 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:51:25,779 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:51:25,779 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:51:25,779 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:51:25,788 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:51:25" (1/1) ... [2024-11-09 04:51:25,802 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:51:25" (1/1) ... [2024-11-09 04:51:25,829 INFO L138 Inliner]: procedures = 51, calls = 90, calls flagged for inlining = 18, calls inlined = 15, statements flattened = 137 [2024-11-09 04:51:25,830 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:51:25,831 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:51:25,831 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:51:25,831 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:51:25,843 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:51:25" (1/1) ... [2024-11-09 04:51:25,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:51:25" (1/1) ... [2024-11-09 04:51:25,846 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:51:25" (1/1) ... [2024-11-09 04:51:25,847 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:51:25" (1/1) ... [2024-11-09 04:51:25,856 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:51:25" (1/1) ... [2024-11-09 04:51:25,869 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:51:25" (1/1) ... [2024-11-09 04:51:25,871 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:51:25" (1/1) ... [2024-11-09 04:51:25,872 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:51:25" (1/1) ... [2024-11-09 04:51:25,879 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:51:25,880 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:51:25,880 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:51:25,880 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:51:25,886 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:51:25" (1/1) ... [2024-11-09 04:51:25,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:51:25,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ce5b5a-9742-46dc-b5dc-377ee35837eb/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:51:25,935 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ce5b5a-9742-46dc-b5dc-377ee35837eb/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:51:25,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ce5b5a-9742-46dc-b5dc-377ee35837eb/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:51:25,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:51:25,982 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-09 04:51:25,983 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-09 04:51:25,983 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-09 04:51:25,983 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-09 04:51:25,983 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-09 04:51:25,984 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-09 04:51:25,984 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-09 04:51:25,985 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-09 04:51:25,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:51:25,986 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-09 04:51:25,986 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-09 04:51:25,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:51:25,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:51:26,091 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:51:26,093 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:51:26,439 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-09 04:51:26,440 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:51:26,586 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:51:26,586 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 04:51:26,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:51:26 BoogieIcfgContainer [2024-11-09 04:51:26,587 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:51:26,591 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:51:26,591 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:51:26,595 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:51:26,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:51:25" (1/3) ... [2024-11-09 04:51:26,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48177a03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:51:26, skipping insertion in model container [2024-11-09 04:51:26,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:51:25" (2/3) ... [2024-11-09 04:51:26,598 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48177a03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:51:26, skipping insertion in model container [2024-11-09 04:51:26,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:51:26" (3/3) ... [2024-11-09 04:51:26,600 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product02.cil.c [2024-11-09 04:51:26,623 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:51:26,626 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:51:26,696 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:51:26,704 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;@1bdce9c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:51:26,705 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:51:26,708 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 30 states have internal predecessors, (37), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 04:51:26,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 04:51:26,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:51:26,716 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:51:26,717 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:51:26,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:51:26,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1483535509, now seen corresponding path program 1 times [2024-11-09 04:51:26,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:51:26,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969436503] [2024-11-09 04:51:26,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:51:26,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:51:26,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:51:26,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:51:26,905 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:51:26,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969436503] [2024-11-09 04:51:26,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969436503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:51:26,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:51:26,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:51:26,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674045159] [2024-11-09 04:51:26,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:51:26,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 04:51:26,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:51:26,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 04:51:26,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 04:51:26,955 INFO L87 Difference]: Start difference. First operand has 40 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 30 states have internal predecessors, (37), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:51:27,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:51:27,020 INFO L93 Difference]: Finished difference Result 78 states and 103 transitions. [2024-11-09 04:51:27,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 04:51:27,024 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 15 [2024-11-09 04:51:27,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:51:27,032 INFO L225 Difference]: With dead ends: 78 [2024-11-09 04:51:27,032 INFO L226 Difference]: Without dead ends: 35 [2024-11-09 04:51:27,036 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 [2024-11-09 04:51:27,040 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:51:27,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 04:51:27,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-09 04:51:27,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-11-09 04:51:27,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 26 states have internal predecessors, (29), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 04:51:27,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2024-11-09 04:51:27,084 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 15 [2024-11-09 04:51:27,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:51:27,085 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2024-11-09 04:51:27,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:51:27,085 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2024-11-09 04:51:27,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 04:51:27,087 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:51:27,088 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:51:27,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:51:27,088 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:51:27,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:51:27,090 INFO L85 PathProgramCache]: Analyzing trace with hash 2078960522, now seen corresponding path program 1 times [2024-11-09 04:51:27,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:51:27,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423043816] [2024-11-09 04:51:27,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:51:27,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:51:27,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:51:27,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:51:27,257 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:51:27,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423043816] [2024-11-09 04:51:27,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423043816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:51:27,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:51:27,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:51:27,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008896473] [2024-11-09 04:51:27,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:51:27,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:51:27,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:51:27,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:51:27,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:51:27,263 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:51:27,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:51:27,323 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2024-11-09 04:51:27,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:51:27,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 16 [2024-11-09 04:51:27,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:51:27,327 INFO L225 Difference]: With dead ends: 47 [2024-11-09 04:51:27,327 INFO L226 Difference]: Without dead ends: 27 [2024-11-09 04:51:27,328 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 [2024-11-09 04:51:27,331 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 7 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:51:27,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 33 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:51:27,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-09 04:51:27,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-09 04:51:27,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 21 states have internal predecessors, (23), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 04:51:27,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2024-11-09 04:51:27,345 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 16 [2024-11-09 04:51:27,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:51:27,346 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2024-11-09 04:51:27,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:51:27,347 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2024-11-09 04:51:27,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 04:51:27,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:51:27,348 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:51:27,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 04:51:27,349 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:51:27,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:51:27,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1030376707, now seen corresponding path program 1 times [2024-11-09 04:51:27,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:51:27,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897690736] [2024-11-09 04:51:27,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:51:27,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:51:27,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:51:27,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:51:27,545 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:51:27,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897690736] [2024-11-09 04:51:27,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897690736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:51:27,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:51:27,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:51:27,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224678635] [2024-11-09 04:51:27,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:51:27,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:51:27,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:51:27,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:51:27,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:51:27,553 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:51:27,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:51:27,644 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2024-11-09 04:51:27,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:51:27,646 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2024-11-09 04:51:27,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:51:27,647 INFO L225 Difference]: With dead ends: 49 [2024-11-09 04:51:27,648 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 04:51:27,648 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 [2024-11-09 04:51:27,651 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 15 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:51:27,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 32 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:51:27,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 04:51:27,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 04:51:27,656 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) [2024-11-09 04:51:27,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 04:51:27,657 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2024-11-09 04:51:27,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:51:27,657 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 04:51:27,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:51:27,657 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 04:51:27,660 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 04:51:27,663 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 04:51:27,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 04:51:27,667 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-09 04:51:27,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 04:51:27,770 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 04:51:27,810 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:51:27 BoogieIcfgContainer [2024-11-09 04:51:27,811 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 04:51:27,812 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 04:51:27,812 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 04:51:27,812 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 04:51:27,815 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:51:26" (3/4) ... [2024-11-09 04:51:27,818 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 04:51:27,823 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-09 04:51:27,823 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-09 04:51:27,823 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-09 04:51:27,823 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-11-09 04:51:27,824 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-09 04:51:27,835 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2024-11-09 04:51:27,836 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-09 04:51:27,837 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 04:51:27,837 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 04:51:27,837 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 04:51:28,046 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ce5b5a-9742-46dc-b5dc-377ee35837eb/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 04:51:28,046 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ce5b5a-9742-46dc-b5dc-377ee35837eb/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 04:51:28,047 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 04:51:28,047 INFO L158 Benchmark]: Toolchain (without parser) took 2930.58ms. Allocated memory was 125.8MB in the beginning and 169.9MB in the end (delta: 44.0MB). Free memory was 93.7MB in the beginning and 134.2MB in the end (delta: -40.4MB). Peak memory consumption was 68.3MB. Max. memory is 16.1GB. [2024-11-09 04:51:28,048 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 125.8MB. Free memory is still 71.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:51:28,048 INFO L158 Benchmark]: CACSL2BoogieTranslator took 659.40ms. Allocated memory is still 125.8MB. Free memory was 93.4MB in the beginning and 72.4MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 04:51:28,048 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.37ms. Allocated memory is still 125.8MB. Free memory was 72.4MB in the beginning and 70.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:51:28,050 INFO L158 Benchmark]: Boogie Preprocessor took 48.31ms. Allocated memory is still 125.8MB. Free memory was 70.4MB in the beginning and 69.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:51:28,051 INFO L158 Benchmark]: RCFGBuilder took 707.40ms. Allocated memory was 125.8MB in the beginning and 169.9MB in the end (delta: 44.0MB). Free memory was 69.0MB in the beginning and 126.7MB in the end (delta: -57.7MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2024-11-09 04:51:28,051 INFO L158 Benchmark]: TraceAbstraction took 1220.11ms. Allocated memory is still 169.9MB. Free memory was 126.7MB in the beginning and 75.3MB in the end (delta: 51.4MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-09 04:51:28,052 INFO L158 Benchmark]: Witness Printer took 235.12ms. Allocated memory is still 169.9MB. Free memory was 75.3MB in the beginning and 134.2MB in the end (delta: -58.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 04:51:28,055 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 125.8MB. Free memory is still 71.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 659.40ms. Allocated memory is still 125.8MB. Free memory was 93.4MB in the beginning and 72.4MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.37ms. Allocated memory is still 125.8MB. Free memory was 72.4MB in the beginning and 70.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.31ms. Allocated memory is still 125.8MB. Free memory was 70.4MB in the beginning and 69.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 707.40ms. Allocated memory was 125.8MB in the beginning and 169.9MB in the end (delta: 44.0MB). Free memory was 69.0MB in the beginning and 126.7MB in the end (delta: -57.7MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1220.11ms. Allocated memory is still 169.9MB. Free memory was 126.7MB in the beginning and 75.3MB in the end (delta: 51.4MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Witness Printer took 235.12ms. Allocated memory is still 169.9MB. Free memory was 75.3MB in the beginning and 134.2MB in the end (delta: -58.9MB). Peak memory consumption was 4.2MB. 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,"Environment.i","") [87] - GenericResultAtLocation [Line: 173]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [173] - GenericResultAtLocation [Line: 214]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [214] - GenericResultAtLocation [Line: 580]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [580] - GenericResultAtLocation [Line: 680]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [680] - GenericResultAtLocation [Line: 798]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [798] - GenericResultAtLocation [Line: 865]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [865] * 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: 870]: 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 6 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 100 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 51 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 72 mSDtfsCounter, 51 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 9, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 76 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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: 809]: Loop Invariant Derived loop invariant: ((pumpRunning == 0) && (splverifierCounter == 0)) - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 808]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 687]: Location Invariant Derived location invariant: (pumpRunning == 0) - ProcedureContractResult [Line: 120]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (pumpRunning == 0) Ensures: ((pumpRunning == 0) && ((((((waterLevel == \old(waterLevel)) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 687]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (pumpRunning == 0) Ensures: ((pumpRunning == 0) && (((((methaneLevelCritical == \old(methaneLevelCritical)) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 583]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && (((((methaneLevelCritical == \old(methaneLevelCritical)) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 132]: Procedure Contract for isMethaneLevelCritical Derived contract for procedure isMethaneLevelCritical. Requires: (pumpRunning == 0) Ensures: ((pumpRunning == 0) && (((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 108]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (pumpRunning == 0) Ensures: ((pumpRunning == 0) && ((((((methaneLevelCritical == \old(methaneLevelCritical)) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) RESULT: Ultimate proved your program to be correct! [2024-11-09 04:51:28,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3ce5b5a-9742-46dc-b5dc-377ee35837eb/bin/utaipan-verify-YMUCfTKeje/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