./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66881aae-6fb5-4b5c-b40e-ed53695f161e/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66881aae-6fb5-4b5c-b40e-ed53695f161e/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66881aae-6fb5-4b5c-b40e-ed53695f161e/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66881aae-6fb5-4b5c-b40e-ed53695f161e/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product29.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66881aae-6fb5-4b5c-b40e-ed53695f161e/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66881aae-6fb5-4b5c-b40e-ed53695f161e/bin/utaipan-EQgc7hIp5V --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 a52f3030559d2895f2e87e8df462d73474ae0a795c3864102f9df18ea4363ab3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:55:02,577 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:55:02,579 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:55:02,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:55:02,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:55:02,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:55:02,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:55:02,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:55:02,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:55:02,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:55:02,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:55:02,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:55:02,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:55:02,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:55:02,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:55:02,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:55:02,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:55:02,655 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:55:02,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:55:02,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:55:02,671 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:55:02,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:55:02,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:55:02,677 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:55:02,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:55:02,682 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:55:02,683 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:55:02,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:55:02,686 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:55:02,687 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:55:02,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:55:02,689 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:55:02,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:55:02,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:55:02,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:55:02,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:55:02,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:55:02,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:55:02,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:55:02,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:55:02,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:55:02,698 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66881aae-6fb5-4b5c-b40e-ed53695f161e/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 03:55:02,744 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:55:02,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:55:02,751 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:55:02,751 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:55:02,752 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:55:02,753 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:55:02,753 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:55:02,753 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:55:02,753 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:55:02,754 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:55:02,755 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:55:02,755 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:55:02,755 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:55:02,756 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:55:02,756 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:55:02,756 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:55:02,756 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:55:02,757 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:55:02,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:55:02,758 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:55:02,758 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:55:02,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:55:02,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:55:02,759 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:55:02,759 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:55:02,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:55:02,759 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:55:02,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:55:02,760 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:55:02,760 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:55:02,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:55:02,761 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:55:02,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:55:02,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:55:02,761 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:55:02,762 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:55:02,762 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:55:02,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:55:02,762 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:55:02,763 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:55:02,763 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:55:02,763 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66881aae-6fb5-4b5c-b40e-ed53695f161e/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66881aae-6fb5-4b5c-b40e-ed53695f161e/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a52f3030559d2895f2e87e8df462d73474ae0a795c3864102f9df18ea4363ab3 [2021-11-23 03:55:03,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:55:03,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:55:03,145 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:55:03,147 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:55:03,148 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:55:03,149 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66881aae-6fb5-4b5c-b40e-ed53695f161e/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/product-lines/minepump_spec2_product29.cil.c [2021-11-23 03:55:03,215 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66881aae-6fb5-4b5c-b40e-ed53695f161e/bin/utaipan-EQgc7hIp5V/data/5c67a3634/fe74c0df4b8946d6bdbdf3ba234048de/FLAG5ffcb688e [2021-11-23 03:55:03,741 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:55:03,742 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66881aae-6fb5-4b5c-b40e-ed53695f161e/sv-benchmarks/c/product-lines/minepump_spec2_product29.cil.c [2021-11-23 03:55:03,755 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66881aae-6fb5-4b5c-b40e-ed53695f161e/bin/utaipan-EQgc7hIp5V/data/5c67a3634/fe74c0df4b8946d6bdbdf3ba234048de/FLAG5ffcb688e [2021-11-23 03:55:04,067 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66881aae-6fb5-4b5c-b40e-ed53695f161e/bin/utaipan-EQgc7hIp5V/data/5c67a3634/fe74c0df4b8946d6bdbdf3ba234048de [2021-11-23 03:55:04,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:55:04,071 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:55:04,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:55:04,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:55:04,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:55:04,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:55:04" (1/1) ... [2021-11-23 03:55:04,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77e8e5aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:04, skipping insertion in model container [2021-11-23 03:55:04,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:55:04" (1/1) ... [2021-11-23 03:55:04,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:55:04,139 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:55:04,377 WARN L230 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_66881aae-6fb5-4b5c-b40e-ed53695f161e/sv-benchmarks/c/product-lines/minepump_spec2_product29.cil.c[5259,5272] [2021-11-23 03:55:04,491 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:55:04,500 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:55:04,527 WARN L230 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_66881aae-6fb5-4b5c-b40e-ed53695f161e/sv-benchmarks/c/product-lines/minepump_spec2_product29.cil.c[5259,5272] [2021-11-23 03:55:04,568 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:55:04,587 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:55:04,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:04 WrapperNode [2021-11-23 03:55:04,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:55:04,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:55:04,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:55:04,589 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:55:04,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:04" (1/1) ... [2021-11-23 03:55:04,625 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:04" (1/1) ... [2021-11-23 03:55:04,674 INFO L137 Inliner]: procedures = 55, calls = 156, calls flagged for inlining = 20, calls inlined = 16, statements flattened = 230 [2021-11-23 03:55:04,675 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:55:04,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:55:04,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:55:04,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:55:04,686 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:04" (1/1) ... [2021-11-23 03:55:04,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:04" (1/1) ... [2021-11-23 03:55:04,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:04" (1/1) ... [2021-11-23 03:55:04,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:04" (1/1) ... [2021-11-23 03:55:04,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:04" (1/1) ... [2021-11-23 03:55:04,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:04" (1/1) ... [2021-11-23 03:55:04,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:04" (1/1) ... [2021-11-23 03:55:04,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:55:04,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:55:04,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:55:04,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:55:04,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:04" (1/1) ... [2021-11-23 03:55:04,762 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:55:04,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66881aae-6fb5-4b5c-b40e-ed53695f161e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:55:04,788 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66881aae-6fb5-4b5c-b40e-ed53695f161e/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:55:04,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66881aae-6fb5-4b5c-b40e-ed53695f161e/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:55:04,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:55:04,845 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-11-23 03:55:04,845 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-11-23 03:55:04,845 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 03:55:04,845 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 03:55:04,845 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-11-23 03:55:04,846 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-11-23 03:55:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 03:55:04,846 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 03:55:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-23 03:55:04,846 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-23 03:55:04,847 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-11-23 03:55:04,847 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-11-23 03:55:04,847 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-11-23 03:55:04,847 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-11-23 03:55:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-11-23 03:55:04,848 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-11-23 03:55:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:55:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-23 03:55:04,848 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-23 03:55:04,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:55:04,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:55:04,979 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:55:04,981 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:55:05,294 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:55:05,364 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:55:05,364 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 03:55:05,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:55:05 BoogieIcfgContainer [2021-11-23 03:55:05,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:55:05,368 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:55:05,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:55:05,372 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:55:05,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:55:04" (1/3) ... [2021-11-23 03:55:05,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d82b2a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:55:05, skipping insertion in model container [2021-11-23 03:55:05,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:04" (2/3) ... [2021-11-23 03:55:05,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d82b2a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:55:05, skipping insertion in model container [2021-11-23 03:55:05,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:55:05" (3/3) ... [2021-11-23 03:55:05,377 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product29.cil.c [2021-11-23 03:55:05,386 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:55:05,387 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:55:05,450 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:55:05,459 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 03:55:05,459 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 03:55:05,480 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 40 states have (on average 1.4) internal successors, (56), 48 states have internal predecessors, (56), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-23 03:55:05,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 03:55:05,487 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:55:05,488 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:55:05,488 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:55:05,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:55:05,493 INFO L85 PathProgramCache]: Analyzing trace with hash -348719135, now seen corresponding path program 1 times [2021-11-23 03:55:05,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:55:05,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894933279] [2021-11-23 03:55:05,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:55:05,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:55:05,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:55:05,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:55:05,808 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:55:05,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894933279] [2021-11-23 03:55:05,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894933279] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:55:05,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:55:05,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:55:05,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691947273] [2021-11-23 03:55:05,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:55:05,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 03:55:05,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:55:05,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 03:55:05,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 03:55:05,854 INFO L87 Difference]: Start difference. First operand has 66 states, 40 states have (on average 1.4) internal successors, (56), 48 states have internal predecessors, (56), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) 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) [2021-11-23 03:55:05,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:55:05,949 INFO L93 Difference]: Finished difference Result 130 states and 173 transitions. [2021-11-23 03:55:05,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 03:55:05,951 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 [2021-11-23 03:55:05,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:55:05,967 INFO L225 Difference]: With dead ends: 130 [2021-11-23 03:55:05,968 INFO L226 Difference]: Without dead ends: 61 [2021-11-23 03:55:05,972 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:55:05,978 INFO L933 BasicCegarLoop]: 67 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, 67 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:55:05,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:55:05,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-11-23 03:55:06,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-11-23 03:55:06,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 44 states have internal predecessors, (48), 15 states have call successors, (15), 9 states have call predecessors, (15), 8 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-23 03:55:06,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 77 transitions. [2021-11-23 03:55:06,045 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 77 transitions. Word has length 17 [2021-11-23 03:55:06,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:55:06,045 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 77 transitions. [2021-11-23 03:55:06,046 INFO L471 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) [2021-11-23 03:55:06,047 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 77 transitions. [2021-11-23 03:55:06,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 03:55:06,051 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:55:06,051 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:55:06,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:55:06,052 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:55:06,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:55:06,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1827531829, now seen corresponding path program 1 times [2021-11-23 03:55:06,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:55:06,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994311264] [2021-11-23 03:55:06,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:55:06,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:55:06,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:55:06,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:55:06,165 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:55:06,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994311264] [2021-11-23 03:55:06,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994311264] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:55:06,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:55:06,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:55:06,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141723533] [2021-11-23 03:55:06,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:55:06,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:55:06,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:55:06,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:55:06,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:55:06,175 INFO L87 Difference]: Start difference. First operand 61 states and 77 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) [2021-11-23 03:55:06,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:55:06,236 INFO L93 Difference]: Finished difference Result 99 states and 125 transitions. [2021-11-23 03:55:06,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:55:06,238 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 [2021-11-23 03:55:06,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:55:06,242 INFO L225 Difference]: With dead ends: 99 [2021-11-23 03:55:06,247 INFO L226 Difference]: Without dead ends: 53 [2021-11-23 03:55:06,251 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:55:06,254 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 7 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:55:06,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 97 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:55:06,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-23 03:55:06,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-11-23 03:55:06,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 32 states have (on average 1.3125) internal successors, (42), 39 states have internal predecessors, (42), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (12), 8 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-23 03:55:06,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 66 transitions. [2021-11-23 03:55:06,267 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 66 transitions. Word has length 18 [2021-11-23 03:55:06,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:55:06,269 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 66 transitions. [2021-11-23 03:55:06,269 INFO L471 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) [2021-11-23 03:55:06,270 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 66 transitions. [2021-11-23 03:55:06,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 03:55:06,272 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:55:06,272 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:55:06,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:55:06,272 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:55:06,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:55:06,273 INFO L85 PathProgramCache]: Analyzing trace with hash -550062717, now seen corresponding path program 1 times [2021-11-23 03:55:06,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:55:06,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956158395] [2021-11-23 03:55:06,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:55:06,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:55:06,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:55:06,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:55:06,399 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:55:06,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956158395] [2021-11-23 03:55:06,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956158395] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:55:06,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:55:06,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:55:06,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143070668] [2021-11-23 03:55:06,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:55:06,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:55:06,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:55:06,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:55:06,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:55:06,402 INFO L87 Difference]: Start difference. First operand 53 states and 66 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:55:06,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:55:06,447 INFO L93 Difference]: Finished difference Result 104 states and 131 transitions. [2021-11-23 03:55:06,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:55:06,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2021-11-23 03:55:06,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:55:06,449 INFO L225 Difference]: With dead ends: 104 [2021-11-23 03:55:06,449 INFO L226 Difference]: Without dead ends: 53 [2021-11-23 03:55:06,450 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:55:06,452 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 55 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:55:06,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 51 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:55:06,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-23 03:55:06,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-11-23 03:55:06,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 32 states have (on average 1.28125) internal successors, (41), 39 states have internal predecessors, (41), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (12), 8 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-23 03:55:06,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 65 transitions. [2021-11-23 03:55:06,462 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 65 transitions. Word has length 20 [2021-11-23 03:55:06,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:55:06,463 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 65 transitions. [2021-11-23 03:55:06,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:55:06,463 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 65 transitions. [2021-11-23 03:55:06,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 03:55:06,465 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:55:06,465 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:55:06,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 03:55:06,466 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:55:06,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:55:06,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1460964116, now seen corresponding path program 1 times [2021-11-23 03:55:06,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:55:06,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162078673] [2021-11-23 03:55:06,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:55:06,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:55:06,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:55:06,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:55:06,526 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:55:06,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162078673] [2021-11-23 03:55:06,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162078673] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:55:06,526 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:55:06,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:55:06,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368119805] [2021-11-23 03:55:06,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:55:06,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:55:06,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:55:06,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:55:06,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:55:06,530 INFO L87 Difference]: Start difference. First operand 53 states and 65 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-23 03:55:06,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:55:06,640 INFO L93 Difference]: Finished difference Result 104 states and 130 transitions. [2021-11-23 03:55:06,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:55:06,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2021-11-23 03:55:06,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:55:06,644 INFO L225 Difference]: With dead ends: 104 [2021-11-23 03:55:06,644 INFO L226 Difference]: Without dead ends: 102 [2021-11-23 03:55:06,644 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:55:06,646 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 42 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 112 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 [2021-11-23 03:55:06,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 112 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:55:06,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-11-23 03:55:06,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2021-11-23 03:55:06,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 61 states have (on average 1.278688524590164) internal successors, (78), 74 states have internal predecessors, (78), 24 states have call successors, (24), 16 states have call predecessors, (24), 16 states have return successors, (26), 16 states have call predecessors, (26), 24 states have call successors, (26) [2021-11-23 03:55:06,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 128 transitions. [2021-11-23 03:55:06,669 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 128 transitions. Word has length 30 [2021-11-23 03:55:06,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:55:06,669 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 128 transitions. [2021-11-23 03:55:06,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-23 03:55:06,670 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 128 transitions. [2021-11-23 03:55:06,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-23 03:55:06,679 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:55:06,679 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:55:06,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 03:55:06,680 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:55:06,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:55:06,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1361748775, now seen corresponding path program 1 times [2021-11-23 03:55:06,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:55:06,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278692287] [2021-11-23 03:55:06,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:55:06,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:55:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:55:06,904 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 03:55:06,904 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:55:06,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278692287] [2021-11-23 03:55:06,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278692287] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:55:06,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197183547] [2021-11-23 03:55:06,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:55:06,906 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:55:06,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66881aae-6fb5-4b5c-b40e-ed53695f161e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:55:06,907 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66881aae-6fb5-4b5c-b40e-ed53695f161e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:55:06,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66881aae-6fb5-4b5c-b40e-ed53695f161e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 03:55:07,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:55:07,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 03:55:07,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:55:07,318 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-23 03:55:07,321 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:55:07,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197183547] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:55:07,321 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 03:55:07,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2021-11-23 03:55:07,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75787579] [2021-11-23 03:55:07,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:55:07,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:55:07,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:55:07,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:55:07,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-23 03:55:07,327 INFO L87 Difference]: Start difference. First operand 102 states and 128 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-23 03:55:07,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:55:07,389 INFO L93 Difference]: Finished difference Result 138 states and 173 transitions. [2021-11-23 03:55:07,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:55:07,390 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 59 [2021-11-23 03:55:07,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:55:07,391 INFO L225 Difference]: With dead ends: 138 [2021-11-23 03:55:07,392 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 03:55:07,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-23 03:55:07,402 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 28 mSDsluCounter, 34 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 [2021-11-23 03:55:07,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 53 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:55:07,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 03:55:07,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 03:55:07,406 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) [2021-11-23 03:55:07,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 03:55:07,406 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2021-11-23 03:55:07,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:55:07,406 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 03:55:07,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-23 03:55:07,407 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 03:55:07,407 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 03:55:07,410 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 03:55:07,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66881aae-6fb5-4b5c-b40e-ed53695f161e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-23 03:55:07,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66881aae-6fb5-4b5c-b40e-ed53695f161e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:55:07,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 03:55:07,956 INFO L861 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 171 178) the Hoare annotation is: true [2021-11-23 03:55:07,956 INFO L858 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 171 178) no Hoare annotation was computed. [2021-11-23 03:55:07,956 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 87 93) no Hoare annotation was computed. [2021-11-23 03:55:07,957 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 87 93) the Hoare annotation is: true [2021-11-23 03:55:07,957 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 534 545) the Hoare annotation is: true [2021-11-23 03:55:07,957 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 534 545) no Hoare annotation was computed. [2021-11-23 03:55:07,957 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 333 362) no Hoare annotation was computed. [2021-11-23 03:55:07,957 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 333 362) the Hoare annotation is: true [2021-11-23 03:55:07,957 INFO L858 garLoopResultBuilder]: For program point L347(lines 347 351) no Hoare annotation was computed. [2021-11-23 03:55:07,957 INFO L861 garLoopResultBuilder]: At program point L347-1(lines 347 351) the Hoare annotation is: true [2021-11-23 03:55:07,957 INFO L861 garLoopResultBuilder]: At program point L343-2(lines 343 357) the Hoare annotation is: true [2021-11-23 03:55:07,958 INFO L861 garLoopResultBuilder]: At program point L339(line 339) the Hoare annotation is: true [2021-11-23 03:55:07,958 INFO L858 garLoopResultBuilder]: For program point L339-1(line 339) no Hoare annotation was computed. [2021-11-23 03:55:07,958 INFO L861 garLoopResultBuilder]: At program point L358(lines 333 362) the Hoare annotation is: true [2021-11-23 03:55:07,958 INFO L858 garLoopResultBuilder]: For program point L354(line 354) no Hoare annotation was computed. [2021-11-23 03:55:07,958 INFO L861 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 546 554) the Hoare annotation is: true [2021-11-23 03:55:07,958 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 546 554) no Hoare annotation was computed. [2021-11-23 03:55:07,958 INFO L854 garLoopResultBuilder]: At program point L448(line 448) 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))) [2021-11-23 03:55:07,958 INFO L858 garLoopResultBuilder]: For program point L448-1(line 448) no Hoare annotation was computed. [2021-11-23 03:55:07,959 INFO L854 garLoopResultBuilder]: At program point L135(line 135) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= ~systemActive~0 1))) [2021-11-23 03:55:07,959 INFO L854 garLoopResultBuilder]: At program point L131(line 131) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= ~systemActive~0 1))) [2021-11-23 03:55:07,959 INFO L854 garLoopResultBuilder]: At program point L127(line 127) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= ~systemActive~0 1))) [2021-11-23 03:55:07,959 INFO L858 garLoopResultBuilder]: For program point L127-1(line 127) no Hoare annotation was computed. [2021-11-23 03:55:07,959 INFO L854 garLoopResultBuilder]: At program point L140(line 140) 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))) [2021-11-23 03:55:07,959 INFO L854 garLoopResultBuilder]: At program point L140-1(lines 121 145) 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))) [2021-11-23 03:55:07,959 INFO L858 garLoopResultBuilder]: For program point L74-1(lines 74 80) no Hoare annotation was computed. [2021-11-23 03:55:07,960 INFO L858 garLoopResultBuilder]: For program point L454(lines 454 464) no Hoare annotation was computed. [2021-11-23 03:55:07,960 INFO L854 garLoopResultBuilder]: At program point L450(lines 450 467) 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))) [2021-11-23 03:55:07,960 INFO L854 garLoopResultBuilder]: At program point L450-1(lines 442 470) 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))) [2021-11-23 03:55:07,960 INFO L858 garLoopResultBuilder]: For program point L455(lines 455 461) no Hoare annotation was computed. [2021-11-23 03:55:07,960 INFO L854 garLoopResultBuilder]: At program point L327(line 327) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= ~systemActive~0 1))) [2021-11-23 03:55:07,960 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 66 85) no Hoare annotation was computed. [2021-11-23 03:55:07,960 INFO L858 garLoopResultBuilder]: For program point L129(lines 129 137) no Hoare annotation was computed. [2021-11-23 03:55:07,961 INFO L858 garLoopResultBuilder]: For program point L125(lines 125 142) no Hoare annotation was computed. [2021-11-23 03:55:07,961 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 63 86) 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))) [2021-11-23 03:55:07,961 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 63 86) no Hoare annotation was computed. [2021-11-23 03:55:07,961 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 327) no Hoare annotation was computed. [2021-11-23 03:55:07,961 INFO L861 garLoopResultBuilder]: At program point L419-2(lines 419 426) the Hoare annotation is: true [2021-11-23 03:55:07,961 INFO L854 garLoopResultBuilder]: At program point L304-2(lines 298 309) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-23 03:55:07,961 INFO L858 garLoopResultBuilder]: For program point L288(lines 288 294) no Hoare annotation was computed. [2021-11-23 03:55:07,962 INFO L858 garLoopResultBuilder]: For program point L288-1(lines 288 294) no Hoare annotation was computed. [2021-11-23 03:55:07,962 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-11-23 03:55:07,962 INFO L861 garLoopResultBuilder]: At program point L317(lines 258 321) the Hoare annotation is: true [2021-11-23 03:55:07,962 INFO L854 garLoopResultBuilder]: At program point L280(line 280) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-23 03:55:07,965 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 03:55:07,966 INFO L854 garLoopResultBuilder]: At program point L314(lines 267 315) the Hoare annotation is: false [2021-11-23 03:55:07,966 INFO L858 garLoopResultBuilder]: For program point L269(lines 268 313) no Hoare annotation was computed. [2021-11-23 03:55:07,966 INFO L854 garLoopResultBuilder]: At program point L290(line 290) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-23 03:55:07,966 INFO L854 garLoopResultBuilder]: At program point L311(lines 268 313) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-23 03:55:07,967 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 284) no Hoare annotation was computed. [2021-11-23 03:55:07,967 INFO L858 garLoopResultBuilder]: For program point L278-1(lines 278 284) no Hoare annotation was computed. [2021-11-23 03:55:07,967 INFO L854 garLoopResultBuilder]: At program point L419(lines 419 426) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0)) [2021-11-23 03:55:07,967 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 522 533) no Hoare annotation was computed. [2021-11-23 03:55:07,967 INFO L861 garLoopResultBuilder]: At program point waterRiseENTRY(lines 522 533) the Hoare annotation is: true [2021-11-23 03:55:07,968 INFO L854 garLoopResultBuilder]: At program point L114(line 114) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0)) (not (= ~methAndRunningLastTime~0 0))) [2021-11-23 03:55:07,968 INFO L858 garLoopResultBuilder]: For program point L114-1(lines 95 119) no Hoare annotation was computed. [2021-11-23 03:55:07,968 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 95 119) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0)) (not (= ~methAndRunningLastTime~0 0))) [2021-11-23 03:55:07,968 INFO L854 garLoopResultBuilder]: At program point L109(line 109) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= ~methAndRunningLastTime~0 0)) (not (= ~systemActive~0 1))) [2021-11-23 03:55:07,968 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 95 119) no Hoare annotation was computed. [2021-11-23 03:55:07,968 INFO L854 garLoopResultBuilder]: At program point L105(line 105) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= ~methAndRunningLastTime~0 0)) (not (= ~systemActive~0 1))) [2021-11-23 03:55:07,969 INFO L858 garLoopResultBuilder]: For program point L103(lines 103 111) no Hoare annotation was computed. [2021-11-23 03:55:07,969 INFO L854 garLoopResultBuilder]: At program point L99(lines 99 116) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0)) (not (= ~methAndRunningLastTime~0 0))) [2021-11-23 03:55:07,969 INFO L861 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 179 189) the Hoare annotation is: true [2021-11-23 03:55:07,969 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 179 189) no Hoare annotation was computed. [2021-11-23 03:55:07,970 INFO L861 garLoopResultBuilder]: At program point L184(line 184) the Hoare annotation is: true [2021-11-23 03:55:07,970 INFO L858 garLoopResultBuilder]: For program point L184-1(line 184) no Hoare annotation was computed. [2021-11-23 03:55:07,974 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-23 03:55:07,975 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 03:55:08,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:55:08 BoogieIcfgContainer [2021-11-23 03:55:08,007 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 03:55:08,008 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 03:55:08,008 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 03:55:08,008 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 03:55:08,009 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:55:05" (3/4) ... [2021-11-23 03:55:08,012 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 03:55:08,018 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2021-11-23 03:55:08,018 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-11-23 03:55:08,018 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-11-23 03:55:08,018 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-11-23 03:55:08,018 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2021-11-23 03:55:08,019 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-11-23 03:55:08,019 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-11-23 03:55:08,019 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2021-11-23 03:55:08,019 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2021-11-23 03:55:08,039 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 72 nodes and edges [2021-11-23 03:55:08,040 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2021-11-23 03:55:08,041 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-23 03:55:08,042 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 03:55:08,042 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 03:55:08,043 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 03:55:08,043 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 03:55:08,071 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && methAndRunningLastTime == 0) [2021-11-23 03:55:08,072 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && methAndRunningLastTime == 0) [2021-11-23 03:55:08,073 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0) [2021-11-23 03:55:08,074 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && methAndRunningLastTime == 0) [2021-11-23 03:55:08,075 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && methAndRunningLastTime == 0) [2021-11-23 03:55:08,075 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(systemActive == 1) [2021-11-23 03:55:08,125 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66881aae-6fb5-4b5c-b40e-ed53695f161e/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 03:55:08,126 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 03:55:08,126 INFO L158 Benchmark]: Toolchain (without parser) took 4054.93ms. Allocated memory was 104.9MB in the beginning and 144.7MB in the end (delta: 39.8MB). Free memory was 63.6MB in the beginning and 84.1MB in the end (delta: -20.5MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2021-11-23 03:55:08,127 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 104.9MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:55:08,127 INFO L158 Benchmark]: CACSL2BoogieTranslator took 514.39ms. Allocated memory is still 104.9MB. Free memory was 63.3MB in the beginning and 71.4MB in the end (delta: -8.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 03:55:08,129 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.15ms. Allocated memory is still 104.9MB. Free memory was 71.4MB in the beginning and 68.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:55:08,129 INFO L158 Benchmark]: Boogie Preprocessor took 47.03ms. Allocated memory is still 104.9MB. Free memory was 68.8MB in the beginning and 67.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:55:08,129 INFO L158 Benchmark]: RCFGBuilder took 624.31ms. Allocated memory is still 104.9MB. Free memory was 67.2MB in the beginning and 46.3MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-23 03:55:08,130 INFO L158 Benchmark]: TraceAbstraction took 2639.17ms. Allocated memory was 104.9MB in the beginning and 144.7MB in the end (delta: 39.8MB). Free memory was 45.8MB in the beginning and 90.4MB in the end (delta: -44.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:55:08,130 INFO L158 Benchmark]: Witness Printer took 117.55ms. Allocated memory is still 144.7MB. Free memory was 90.4MB in the beginning and 84.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 03:55:08,133 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 104.9MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 514.39ms. Allocated memory is still 104.9MB. Free memory was 63.3MB in the beginning and 71.4MB in the end (delta: -8.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.15ms. Allocated memory is still 104.9MB. Free memory was 71.4MB in the beginning and 68.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.03ms. Allocated memory is still 104.9MB. Free memory was 68.8MB in the beginning and 67.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 624.31ms. Allocated memory is still 104.9MB. Free memory was 67.2MB in the beginning and 46.3MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2639.17ms. Allocated memory was 104.9MB in the beginning and 144.7MB in the end (delta: 39.8MB). Free memory was 45.8MB in the beginning and 90.4MB in the end (delta: -44.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 117.55ms. Allocated memory is still 144.7MB. Free memory was 90.4MB in the beginning and 84.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. 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: 327]: 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 10 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 135 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 132 mSDsluCounter, 380 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 148 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 106 IncrementalHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 261 mSDtfsCounter, 106 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred in iteration=4, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 36 LocationsWithAnnotation, 216 PreInvPairs, 228 NumberOfFragments, 324 HoareAnnotationTreeSize, 216 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 36 FomulaSimplificationsInter, 140 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 203 NumberOfCodeBlocks, 203 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 197 ConstructedInterpolants, 0 QuantifiedInterpolants, 391 SizeOfPredicates, 3 NumberOfNonLiveVariables, 400 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 53/54 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: 419]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive - InvariantResult [Line: 327]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(systemActive == 1) - InvariantResult [Line: 343]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 258]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 450]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && methAndRunningLastTime == 0) - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && methAndRunningLastTime == 0) - InvariantResult [Line: 442]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && methAndRunningLastTime == 0) - InvariantResult [Line: 267]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && methAndRunningLastTime == 0) - InvariantResult [Line: 333]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 419]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0) - InvariantResult [Line: 268]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && splverifierCounter == 0 RESULT: Ultimate proved your program to be correct! [2021-11-23 03:55:08,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66881aae-6fb5-4b5c-b40e-ed53695f161e/bin/utaipan-EQgc7hIp5V/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