./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product22.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86946d2f-dbb9-4221-8214-aacb1fe342db/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86946d2f-dbb9-4221-8214-aacb1fe342db/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86946d2f-dbb9-4221-8214-aacb1fe342db/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86946d2f-dbb9-4221-8214-aacb1fe342db/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product22.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86946d2f-dbb9-4221-8214-aacb1fe342db/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86946d2f-dbb9-4221-8214-aacb1fe342db/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --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 1e4d2a057e25f6959650b499ceac5ee260080b43c52b288c780b8039e90be344 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 06:35:24,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:35:24,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:35:24,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:35:24,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:35:24,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:35:24,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:35:24,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:35:24,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:35:24,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:35:24,649 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:35:24,651 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:35:24,651 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:35:24,652 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:35:24,653 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:35:24,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:35:24,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:35:24,664 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:35:24,666 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:35:24,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:35:24,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:35:24,677 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:35:24,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:35:24,680 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:35:24,684 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:35:24,693 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:35:24,693 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:35:24,694 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:35:24,695 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:35:24,696 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:35:24,696 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:35:24,697 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:35:24,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:35:24,701 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:35:24,703 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:35:24,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:35:24,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:35:24,706 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:35:24,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:35:24,707 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:35:24,708 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:35:24,709 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86946d2f-dbb9-4221-8214-aacb1fe342db/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 06:35:24,751 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:35:24,752 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:35:24,753 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:35:24,753 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:35:24,754 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:35:24,754 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:35:24,754 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:35:24,754 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:35:24,755 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:35:24,755 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:35:24,756 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:35:24,756 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:35:24,756 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:35:24,757 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:35:24,757 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:35:24,757 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:35:24,757 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:35:24,758 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:35:24,758 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:35:24,758 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:35:24,759 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:35:24,759 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:35:24,759 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:35:24,759 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:35:24,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:35:24,760 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:35:24,760 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:35:24,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:35:24,760 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:35:24,761 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:35:24,761 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:35:24,761 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:35:24,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:35:24,762 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:35:24,762 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:35:24,762 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:35:24,763 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:35:24,763 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:35:24,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:35:24,763 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:35:24,763 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:35:24,764 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_86946d2f-dbb9-4221-8214-aacb1fe342db/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86946d2f-dbb9-4221-8214-aacb1fe342db/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e4d2a057e25f6959650b499ceac5ee260080b43c52b288c780b8039e90be344 [2022-11-19 06:35:25,028 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:35:25,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:35:25,055 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:35:25,057 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:35:25,058 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:35:25,059 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86946d2f-dbb9-4221-8214-aacb1fe342db/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/minepump_spec2_product22.cil.c [2022-11-19 06:35:25,148 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86946d2f-dbb9-4221-8214-aacb1fe342db/bin/utaipan-I9t0OCRTmS/data/da9ff5014/fa68bf03d84644c0b451c7351846cd14/FLAGb8671cc4b [2022-11-19 06:35:25,702 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:35:25,713 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86946d2f-dbb9-4221-8214-aacb1fe342db/sv-benchmarks/c/product-lines/minepump_spec2_product22.cil.c [2022-11-19 06:35:25,734 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86946d2f-dbb9-4221-8214-aacb1fe342db/bin/utaipan-I9t0OCRTmS/data/da9ff5014/fa68bf03d84644c0b451c7351846cd14/FLAGb8671cc4b [2022-11-19 06:35:26,015 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86946d2f-dbb9-4221-8214-aacb1fe342db/bin/utaipan-I9t0OCRTmS/data/da9ff5014/fa68bf03d84644c0b451c7351846cd14 [2022-11-19 06:35:26,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:35:26,020 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:35:26,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:35:26,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:35:26,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:35:26,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:35:26" (1/1) ... [2022-11-19 06:35:26,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db7a383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:35:26, skipping insertion in model container [2022-11-19 06:35:26,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:35:26" (1/1) ... [2022-11-19 06:35:26,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:35:26,093 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:35:26,470 WARN L234 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_86946d2f-dbb9-4221-8214-aacb1fe342db/sv-benchmarks/c/product-lines/minepump_spec2_product22.cil.c[16136,16149] [2022-11-19 06:35:26,485 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:35:26,496 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:35:26,567 WARN L234 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_86946d2f-dbb9-4221-8214-aacb1fe342db/sv-benchmarks/c/product-lines/minepump_spec2_product22.cil.c[16136,16149] [2022-11-19 06:35:26,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:35:26,595 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:35:26,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:35:26 WrapperNode [2022-11-19 06:35:26,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:35:26,597 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:35:26,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:35:26,598 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:35:26,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:35:26" (1/1) ... [2022-11-19 06:35:26,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:35:26" (1/1) ... [2022-11-19 06:35:26,652 INFO L138 Inliner]: procedures = 55, calls = 99, calls flagged for inlining = 21, calls inlined = 18, statements flattened = 186 [2022-11-19 06:35:26,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:35:26,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:35:26,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:35:26,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:35:26,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:35:26" (1/1) ... [2022-11-19 06:35:26,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:35:26" (1/1) ... [2022-11-19 06:35:26,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:35:26" (1/1) ... [2022-11-19 06:35:26,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:35:26" (1/1) ... [2022-11-19 06:35:26,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:35:26" (1/1) ... [2022-11-19 06:35:26,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:35:26" (1/1) ... [2022-11-19 06:35:26,681 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:35:26" (1/1) ... [2022-11-19 06:35:26,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:35:26" (1/1) ... [2022-11-19 06:35:26,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:35:26,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:35:26,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:35:26,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:35:26,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:35:26" (1/1) ... [2022-11-19 06:35:26,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:35:26,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86946d2f-dbb9-4221-8214-aacb1fe342db/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:35:26,737 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86946d2f-dbb9-4221-8214-aacb1fe342db/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:35:26,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86946d2f-dbb9-4221-8214-aacb1fe342db/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:35:26,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:35:26,822 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-19 06:35:26,822 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-19 06:35:26,822 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-19 06:35:26,823 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-19 06:35:26,823 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-19 06:35:26,823 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-19 06:35:26,823 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-19 06:35:26,823 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-19 06:35:26,824 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-19 06:35:26,824 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-19 06:35:26,824 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2022-11-19 06:35:26,824 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2022-11-19 06:35:26,825 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-19 06:35:26,825 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-19 06:35:26,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:35:26,825 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-19 06:35:26,825 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-19 06:35:26,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:35:26,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:35:26,959 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:35:26,961 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:35:27,368 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:35:27,500 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:35:27,500 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 06:35:27,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:35:27 BoogieIcfgContainer [2022-11-19 06:35:27,503 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:35:27,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:35:27,506 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:35:27,524 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:35:27,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:35:26" (1/3) ... [2022-11-19 06:35:27,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d778b89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:35:27, skipping insertion in model container [2022-11-19 06:35:27,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:35:26" (2/3) ... [2022-11-19 06:35:27,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d778b89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:35:27, skipping insertion in model container [2022-11-19 06:35:27,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:35:27" (3/3) ... [2022-11-19 06:35:27,528 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product22.cil.c [2022-11-19 06:35:27,547 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:35:27,548 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 06:35:27,599 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:35:27,608 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@7cdeeb36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:35:27,608 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 06:35:27,615 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 46 states have internal predecessors, (54), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-19 06:35:27,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 06:35:27,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:35:27,627 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:35:27,628 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:35:27,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:35:27,639 INFO L85 PathProgramCache]: Analyzing trace with hash 218904680, now seen corresponding path program 1 times [2022-11-19 06:35:27,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:35:27,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531434434] [2022-11-19 06:35:27,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:35:27,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:35:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:35:27,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:35:27,843 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:35:27,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531434434] [2022-11-19 06:35:27,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531434434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:35:27,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:35:27,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:35:27,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996839507] [2022-11-19 06:35:27,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:35:27,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 06:35:27,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:35:27,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 06:35:27,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 06:35:27,882 INFO L87 Difference]: Start difference. First operand has 62 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 46 states have internal predecessors, (54), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 06:35:27,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:35:27,985 INFO L93 Difference]: Finished difference Result 122 states and 165 transitions. [2022-11-19 06:35:27,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 06:35:27,988 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-19 06:35:27,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:35:28,005 INFO L225 Difference]: With dead ends: 122 [2022-11-19 06:35:28,006 INFO L226 Difference]: Without dead ends: 57 [2022-11-19 06:35:28,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 06:35:28,025 INFO L413 NwaCegarLoop]: 63 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, 63 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:35:28,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:35:28,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-19 06:35:28,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-11-19 06:35:28,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 42 states have internal predecessors, (46), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-19 06:35:28,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 73 transitions. [2022-11-19 06:35:28,094 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 73 transitions. Word has length 17 [2022-11-19 06:35:28,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:35:28,095 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 73 transitions. [2022-11-19 06:35:28,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 06:35:28,096 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 73 transitions. [2022-11-19 06:35:28,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 06:35:28,099 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:35:28,099 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:35:28,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:35:28,100 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:35:28,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:35:28,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1613643141, now seen corresponding path program 1 times [2022-11-19 06:35:28,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:35:28,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598325884] [2022-11-19 06:35:28,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:35:28,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:35:28,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:35:28,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:35:28,227 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:35:28,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598325884] [2022-11-19 06:35:28,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598325884] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:35:28,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:35:28,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:35:28,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481018105] [2022-11-19 06:35:28,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:35:28,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:35:28,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:35:28,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:35:28,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:35:28,232 INFO L87 Difference]: Start difference. First operand 57 states and 73 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 06:35:28,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:35:28,305 INFO L93 Difference]: Finished difference Result 91 states and 117 transitions. [2022-11-19 06:35:28,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:35:28,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-19 06:35:28,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:35:28,308 INFO L225 Difference]: With dead ends: 91 [2022-11-19 06:35:28,308 INFO L226 Difference]: Without dead ends: 49 [2022-11-19 06:35:28,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:35:28,310 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 7 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:35:28,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 89 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:35:28,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-19 06:35:28,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-11-19 06:35:28,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 37 states have internal predecessors, (40), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-19 06:35:28,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 62 transitions. [2022-11-19 06:35:28,322 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 62 transitions. Word has length 18 [2022-11-19 06:35:28,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:35:28,322 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 62 transitions. [2022-11-19 06:35:28,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 06:35:28,323 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 62 transitions. [2022-11-19 06:35:28,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 06:35:28,325 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:35:28,325 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:35:28,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 06:35:28,325 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:35:28,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:35:28,326 INFO L85 PathProgramCache]: Analyzing trace with hash -166172046, now seen corresponding path program 1 times [2022-11-19 06:35:28,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:35:28,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973248001] [2022-11-19 06:35:28,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:35:28,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:35:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:35:28,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:35:28,522 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:35:28,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973248001] [2022-11-19 06:35:28,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973248001] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:35:28,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:35:28,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 06:35:28,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374659510] [2022-11-19 06:35:28,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:35:28,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 06:35:28,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:35:28,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 06:35:28,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 06:35:28,526 INFO L87 Difference]: Start difference. First operand 49 states and 62 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 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) [2022-11-19 06:35:28,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:35:28,731 INFO L93 Difference]: Finished difference Result 140 states and 180 transitions. [2022-11-19 06:35:28,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 06:35:28,732 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 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 20 [2022-11-19 06:35:28,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:35:28,735 INFO L225 Difference]: With dead ends: 140 [2022-11-19 06:35:28,736 INFO L226 Difference]: Without dead ends: 93 [2022-11-19 06:35:28,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-19 06:35:28,738 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 42 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:35:28,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 253 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:35:28,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-11-19 06:35:28,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 89. [2022-11-19 06:35:28,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 54 states have (on average 1.3148148148148149) internal successors, (71), 66 states have internal predecessors, (71), 21 states have call successors, (21), 13 states have call predecessors, (21), 13 states have return successors, (21), 13 states have call predecessors, (21), 21 states have call successors, (21) [2022-11-19 06:35:28,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 113 transitions. [2022-11-19 06:35:28,763 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 113 transitions. Word has length 20 [2022-11-19 06:35:28,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:35:28,764 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 113 transitions. [2022-11-19 06:35:28,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 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) [2022-11-19 06:35:28,764 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 113 transitions. [2022-11-19 06:35:28,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-19 06:35:28,766 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:35:28,766 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:35:28,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 06:35:28,767 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:35:28,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:35:28,768 INFO L85 PathProgramCache]: Analyzing trace with hash 617846281, now seen corresponding path program 1 times [2022-11-19 06:35:28,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:35:28,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042386926] [2022-11-19 06:35:28,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:35:28,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:35:28,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:35:28,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:35:28,957 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:35:28,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042386926] [2022-11-19 06:35:28,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042386926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:35:28,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:35:28,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:35:28,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517642899] [2022-11-19 06:35:28,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:35:28,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:35:28,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:35:28,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:35:28,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:35:28,961 INFO L87 Difference]: Start difference. First operand 89 states and 113 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 06:35:29,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:35:29,065 INFO L93 Difference]: Finished difference Result 136 states and 175 transitions. [2022-11-19 06:35:29,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:35:29,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2022-11-19 06:35:29,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:35:29,070 INFO L225 Difference]: With dead ends: 136 [2022-11-19 06:35:29,070 INFO L226 Difference]: Without dead ends: 134 [2022-11-19 06:35:29,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:35:29,073 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 41 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:35:29,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 105 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:35:29,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-11-19 06:35:29,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2022-11-19 06:35:29,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 81 states have (on average 1.3209876543209877) internal successors, (107), 99 states have internal predecessors, (107), 32 states have call successors, (32), 20 states have call predecessors, (32), 20 states have return successors, (34), 20 states have call predecessors, (34), 32 states have call successors, (34) [2022-11-19 06:35:29,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 173 transitions. [2022-11-19 06:35:29,108 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 173 transitions. Word has length 23 [2022-11-19 06:35:29,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:35:29,109 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 173 transitions. [2022-11-19 06:35:29,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 06:35:29,110 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 173 transitions. [2022-11-19 06:35:29,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-19 06:35:29,112 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:35:29,113 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:35:29,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 06:35:29,113 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:35:29,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:35:29,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1166111588, now seen corresponding path program 1 times [2022-11-19 06:35:29,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:35:29,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568416061] [2022-11-19 06:35:29,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:35:29,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:35:29,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:35:29,608 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 06:35:29,609 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:35:29,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568416061] [2022-11-19 06:35:29,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568416061] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:35:29,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653993492] [2022-11-19 06:35:29,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:35:29,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:35:29,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86946d2f-dbb9-4221-8214-aacb1fe342db/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:35:29,623 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86946d2f-dbb9-4221-8214-aacb1fe342db/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:35:29,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86946d2f-dbb9-4221-8214-aacb1fe342db/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 06:35:29,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:35:29,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 06:35:29,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:35:29,982 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-19 06:35:29,982 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:35:29,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653993492] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:35:29,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 06:35:29,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 14 [2022-11-19 06:35:29,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985107669] [2022-11-19 06:35:29,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:35:29,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:35:29,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:35:29,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:35:29,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-19 06:35:29,991 INFO L87 Difference]: Start difference. First operand 134 states and 173 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 06:35:30,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:35:30,135 INFO L93 Difference]: Finished difference Result 266 states and 349 transitions. [2022-11-19 06:35:30,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:35:30,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2022-11-19 06:35:30,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:35:30,147 INFO L225 Difference]: With dead ends: 266 [2022-11-19 06:35:30,148 INFO L226 Difference]: Without dead ends: 134 [2022-11-19 06:35:30,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-19 06:35:30,154 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 55 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:35:30,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 63 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:35:30,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-11-19 06:35:30,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2022-11-19 06:35:30,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 81 states have (on average 1.2839506172839505) internal successors, (104), 99 states have internal predecessors, (104), 32 states have call successors, (32), 20 states have call predecessors, (32), 20 states have return successors, (34), 20 states have call predecessors, (34), 32 states have call successors, (34) [2022-11-19 06:35:30,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 170 transitions. [2022-11-19 06:35:30,216 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 170 transitions. Word has length 42 [2022-11-19 06:35:30,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:35:30,218 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 170 transitions. [2022-11-19 06:35:30,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 06:35:30,218 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 170 transitions. [2022-11-19 06:35:30,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-19 06:35:30,228 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:35:30,228 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:35:30,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86946d2f-dbb9-4221-8214-aacb1fe342db/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 06:35:30,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86946d2f-dbb9-4221-8214-aacb1fe342db/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:35:30,436 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:35:30,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:35:30,436 INFO L85 PathProgramCache]: Analyzing trace with hash 2056697660, now seen corresponding path program 1 times [2022-11-19 06:35:30,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:35:30,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123450217] [2022-11-19 06:35:30,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:35:30,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:35:30,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:35:30,764 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 06:35:30,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:35:30,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123450217] [2022-11-19 06:35:30,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123450217] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:35:30,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354271432] [2022-11-19 06:35:30,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:35:30,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:35:30,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86946d2f-dbb9-4221-8214-aacb1fe342db/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:35:30,771 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86946d2f-dbb9-4221-8214-aacb1fe342db/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:35:30,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86946d2f-dbb9-4221-8214-aacb1fe342db/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 06:35:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:35:30,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 06:35:30,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:35:30,990 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-19 06:35:30,990 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:35:30,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354271432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:35:30,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 06:35:30,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2022-11-19 06:35:30,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088220565] [2022-11-19 06:35:30,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:35:30,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:35:30,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:35:30,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:35:31,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-19 06:35:31,002 INFO L87 Difference]: Start difference. First operand 134 states and 170 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-19 06:35:31,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:35:31,067 INFO L93 Difference]: Finished difference Result 200 states and 251 transitions. [2022-11-19 06:35:31,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:35:31,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2022-11-19 06:35:31,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:35:31,070 INFO L225 Difference]: With dead ends: 200 [2022-11-19 06:35:31,070 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 06:35:31,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:35:31,078 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 28 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:35:31,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 53 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 06:35:31,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 06:35:31,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 06:35:31,080 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) [2022-11-19 06:35:31,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 06:35:31,081 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2022-11-19 06:35:31,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:35:31,083 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 06:35:31,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-19 06:35:31,084 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 06:35:31,084 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 06:35:31,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 06:35:31,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86946d2f-dbb9-4221-8214-aacb1fe342db/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 06:35:31,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86946d2f-dbb9-4221-8214-aacb1fe342db/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:35:31,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 06:35:32,120 INFO L902 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 625 632) the Hoare annotation is: true [2022-11-19 06:35:32,120 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 625 632) no Hoare annotation was computed. [2022-11-19 06:35:32,120 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 558 564) no Hoare annotation was computed. [2022-11-19 06:35:32,120 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 558 564) the Hoare annotation is: true [2022-11-19 06:35:32,121 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 859 870) the Hoare annotation is: true [2022-11-19 06:35:32,121 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 859 870) no Hoare annotation was computed. [2022-11-19 06:35:32,121 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 871 879) the Hoare annotation is: true [2022-11-19 06:35:32,121 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 871 879) no Hoare annotation was computed. [2022-11-19 06:35:32,121 INFO L895 garLoopResultBuilder]: At program point L638(line 638) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= 1 ~systemActive~0))) [2022-11-19 06:35:32,121 INFO L895 garLoopResultBuilder]: At program point L638-1(line 638) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= 1 ~systemActive~0))) [2022-11-19 06:35:32,122 INFO L895 garLoopResultBuilder]: At program point L808(line 808) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-11-19 06:35:32,122 INFO L899 garLoopResultBuilder]: For program point L808-1(line 808) no Hoare annotation was computed. [2022-11-19 06:35:32,122 INFO L895 garLoopResultBuilder]: At program point L606(line 606) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= 1 ~systemActive~0))) [2022-11-19 06:35:32,122 INFO L895 garLoopResultBuilder]: At program point L602(line 602) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= 1 ~systemActive~0))) [2022-11-19 06:35:32,122 INFO L895 garLoopResultBuilder]: At program point L788(line 788) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= 1 ~systemActive~0))) [2022-11-19 06:35:32,122 INFO L895 garLoopResultBuilder]: At program point L611(line 611) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-11-19 06:35:32,123 INFO L895 garLoopResultBuilder]: At program point L611-1(lines 592 616) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-11-19 06:35:32,123 INFO L899 garLoopResultBuilder]: For program point L545-1(lines 545 551) no Hoare annotation was computed. [2022-11-19 06:35:32,123 INFO L899 garLoopResultBuilder]: For program point L814(lines 814 824) no Hoare annotation was computed. [2022-11-19 06:35:32,123 INFO L895 garLoopResultBuilder]: At program point L810(lines 810 827) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) (or .cse0 .cse1 .cse2 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~8#1| 0) (not (= ~methaneLevelCritical~0 0))))) [2022-11-19 06:35:32,123 INFO L895 garLoopResultBuilder]: At program point L810-1(lines 802 830) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) (or .cse0 .cse1 .cse2 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~8#1| 0) (not (= ~methaneLevelCritical~0 0))))) [2022-11-19 06:35:32,124 INFO L899 garLoopResultBuilder]: For program point L538-1(lines 537 556) no Hoare annotation was computed. [2022-11-19 06:35:32,124 INFO L899 garLoopResultBuilder]: For program point L600(lines 600 608) no Hoare annotation was computed. [2022-11-19 06:35:32,124 INFO L899 garLoopResultBuilder]: For program point L596(lines 596 613) no Hoare annotation was computed. [2022-11-19 06:35:32,124 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 534 557) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-11-19 06:35:32,124 INFO L899 garLoopResultBuilder]: For program point L815(lines 815 821) no Hoare annotation was computed. [2022-11-19 06:35:32,124 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 534 557) no Hoare annotation was computed. [2022-11-19 06:35:32,125 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 788) no Hoare annotation was computed. [2022-11-19 06:35:32,125 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 418 447) no Hoare annotation was computed. [2022-11-19 06:35:32,125 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 418 447) the Hoare annotation is: true [2022-11-19 06:35:32,125 INFO L902 garLoopResultBuilder]: At program point L443(lines 418 447) the Hoare annotation is: true [2022-11-19 06:35:32,125 INFO L899 garLoopResultBuilder]: For program point L439(line 439) no Hoare annotation was computed. [2022-11-19 06:35:32,125 INFO L899 garLoopResultBuilder]: For program point L432(lines 432 436) no Hoare annotation was computed. [2022-11-19 06:35:32,125 INFO L902 garLoopResultBuilder]: At program point L432-1(lines 432 436) the Hoare annotation is: true [2022-11-19 06:35:32,125 INFO L902 garLoopResultBuilder]: At program point L428-2(lines 428 442) the Hoare annotation is: true [2022-11-19 06:35:32,126 INFO L902 garLoopResultBuilder]: At program point L424(line 424) the Hoare annotation is: true [2022-11-19 06:35:32,126 INFO L899 garLoopResultBuilder]: For program point L424-1(line 424) no Hoare annotation was computed. [2022-11-19 06:35:32,126 INFO L899 garLoopResultBuilder]: For program point L737(lines 737 743) no Hoare annotation was computed. [2022-11-19 06:35:32,126 INFO L899 garLoopResultBuilder]: For program point L737-1(lines 737 743) no Hoare annotation was computed. [2022-11-19 06:35:32,126 INFO L895 garLoopResultBuilder]: At program point L775(lines 726 776) the Hoare annotation is: false [2022-11-19 06:35:32,126 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-19 06:35:32,126 INFO L899 garLoopResultBuilder]: For program point L747(lines 747 753) no Hoare annotation was computed. [2022-11-19 06:35:32,135 INFO L895 garLoopResultBuilder]: At program point L747-1(lines 747 753) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~3#1| 1)) [2022-11-19 06:35:32,135 INFO L895 garLoopResultBuilder]: At program point L772(lines 727 774) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~3#1| 1)) [2022-11-19 06:35:32,136 INFO L895 garLoopResultBuilder]: At program point L739(line 739) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~3#1| 1)) [2022-11-19 06:35:32,136 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 06:35:32,136 INFO L895 garLoopResultBuilder]: At program point L508(lines 508 515) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_main_~tmp~3#1| 1)) [2022-11-19 06:35:32,136 INFO L902 garLoopResultBuilder]: At program point L508-2(lines 508 515) the Hoare annotation is: true [2022-11-19 06:35:32,136 INFO L895 garLoopResultBuilder]: At program point L765-2(lines 757 770) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~3#1| 1)) [2022-11-19 06:35:32,137 INFO L899 garLoopResultBuilder]: For program point L728(lines 727 774) no Hoare annotation was computed. [2022-11-19 06:35:32,137 INFO L895 garLoopResultBuilder]: At program point L749(line 749) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~3#1| 1)) [2022-11-19 06:35:32,137 INFO L902 garLoopResultBuilder]: At program point L778(lines 717 782) the Hoare annotation is: true [2022-11-19 06:35:32,138 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 847 858) no Hoare annotation was computed. [2022-11-19 06:35:32,138 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 847 858) the Hoare annotation is: true [2022-11-19 06:35:32,138 INFO L895 garLoopResultBuilder]: At program point L576(line 576) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (= ~methAndRunningLastTime~0 0))) [2022-11-19 06:35:32,138 INFO L899 garLoopResultBuilder]: For program point L574(lines 574 582) no Hoare annotation was computed. [2022-11-19 06:35:32,139 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 566 590) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0)) (not (= ~methAndRunningLastTime~0 0))) [2022-11-19 06:35:32,139 INFO L895 garLoopResultBuilder]: At program point L570(lines 570 587) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0)) (not (= ~methAndRunningLastTime~0 0))) [2022-11-19 06:35:32,139 INFO L895 garLoopResultBuilder]: At program point L585(line 585) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0)) (not (= ~methAndRunningLastTime~0 0))) [2022-11-19 06:35:32,139 INFO L899 garLoopResultBuilder]: For program point L585-1(lines 566 590) no Hoare annotation was computed. [2022-11-19 06:35:32,140 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 566 590) no Hoare annotation was computed. [2022-11-19 06:35:32,140 INFO L895 garLoopResultBuilder]: At program point L580(line 580) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (= ~methAndRunningLastTime~0 0))) [2022-11-19 06:35:32,144 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-19 06:35:32,147 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 06:35:32,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:35:32 BoogieIcfgContainer [2022-11-19 06:35:32,187 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 06:35:32,188 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 06:35:32,188 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 06:35:32,189 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 06:35:32,189 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:35:27" (3/4) ... [2022-11-19 06:35:32,193 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 06:35:32,199 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-19 06:35:32,199 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-19 06:35:32,200 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-19 06:35:32,200 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-19 06:35:32,200 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-19 06:35:32,200 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-19 06:35:32,201 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-19 06:35:32,201 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2022-11-19 06:35:32,218 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2022-11-19 06:35:32,219 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-19 06:35:32,219 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-19 06:35:32,220 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 06:35:32,220 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 06:35:32,255 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && methAndRunningLastTime == 0) [2022-11-19 06:35:32,257 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && methAndRunningLastTime == 0) [2022-11-19 06:35:32,258 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0) [2022-11-19 06:35:32,259 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || tmp == 0) || !(methaneLevelCritical == 0)) [2022-11-19 06:35:32,260 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive) [2022-11-19 06:35:32,260 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || tmp == 0) || !(methaneLevelCritical == 0)) [2022-11-19 06:35:32,261 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive) [2022-11-19 06:35:32,310 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86946d2f-dbb9-4221-8214-aacb1fe342db/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 06:35:32,310 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 06:35:32,311 INFO L158 Benchmark]: Toolchain (without parser) took 6290.46ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 99.0MB in the beginning and 61.6MB in the end (delta: 37.4MB). Peak memory consumption was 63.0MB. Max. memory is 16.1GB. [2022-11-19 06:35:32,311 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 86.0MB. Free memory is still 40.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:35:32,311 INFO L158 Benchmark]: CACSL2BoogieTranslator took 574.22ms. Allocated memory is still 132.1MB. Free memory was 98.6MB in the beginning and 101.6MB in the end (delta: -3.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 06:35:32,312 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.18ms. Allocated memory is still 132.1MB. Free memory was 101.6MB in the beginning and 99.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:35:32,312 INFO L158 Benchmark]: Boogie Preprocessor took 32.40ms. Allocated memory is still 132.1MB. Free memory was 99.5MB in the beginning and 98.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:35:32,313 INFO L158 Benchmark]: RCFGBuilder took 816.79ms. Allocated memory is still 132.1MB. Free memory was 97.9MB in the beginning and 74.9MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-19 06:35:32,313 INFO L158 Benchmark]: TraceAbstraction took 4681.66ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 74.3MB in the beginning and 66.9MB in the end (delta: 7.5MB). Peak memory consumption was 36.3MB. Max. memory is 16.1GB. [2022-11-19 06:35:32,314 INFO L158 Benchmark]: Witness Printer took 121.94ms. Allocated memory is still 159.4MB. Free memory was 66.9MB in the beginning and 61.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 06:35:32,317 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 86.0MB. Free memory is still 40.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 574.22ms. Allocated memory is still 132.1MB. Free memory was 98.6MB in the beginning and 101.6MB in the end (delta: -3.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.18ms. Allocated memory is still 132.1MB. Free memory was 101.6MB in the beginning and 99.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.40ms. Allocated memory is still 132.1MB. Free memory was 99.5MB in the beginning and 98.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 816.79ms. Allocated memory is still 132.1MB. Free memory was 97.9MB in the beginning and 74.9MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 4681.66ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 74.3MB in the beginning and 66.9MB in the end (delta: 7.5MB). Peak memory consumption was 36.3MB. Max. memory is 16.1GB. * Witness Printer took 121.94ms. Allocated memory is still 159.4MB. Free memory was 66.9MB in the beginning and 61.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * 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: 788]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 182 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 173 mSDsluCounter, 626 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 326 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 235 IncrementalHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 300 mSDtfsCounter, 235 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 142 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=4, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 36 LocationsWithAnnotation, 349 PreInvPairs, 370 NumberOfFragments, 411 HoareAnnotationTreeSize, 349 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 36 FomulaSimplificationsInter, 682 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 286 NumberOfCodeBlocks, 286 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 278 ConstructedInterpolants, 0 QuantifiedInterpolants, 557 SizeOfPredicates, 8 NumberOfNonLiveVariables, 502 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 82/88 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: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 726]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 727]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && splverifierCounter == 0) && tmp == 1 - InvariantResult [Line: 638]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive) - InvariantResult [Line: 534]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && methAndRunningLastTime == 0) - InvariantResult [Line: 810]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || tmp == 0) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 570]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0) - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 428]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 802]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || tmp == 0) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 717]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 747]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && splverifierCounter == 0) && tmp == 1 - InvariantResult [Line: 508]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && tmp == 1 - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && methAndRunningLastTime == 0) - InvariantResult [Line: 788]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive) - InvariantResult [Line: 508]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-19 06:35:32,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86946d2f-dbb9-4221-8214-aacb1fe342db/bin/utaipan-I9t0OCRTmS/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