./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e7a194b3d6e079d2329a0d70eaa59b34ff3d58300de8b046ef1cd7cff7f67b94 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:53:11,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:53:11,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:53:11,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:53:11,655 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:53:11,656 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:53:11,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:53:11,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:53:11,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:53:11,663 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:53:11,664 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:53:11,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:53:11,666 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:53:11,668 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:53:11,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:53:11,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:53:11,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:53:11,673 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:53:11,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:53:11,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:53:11,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:53:11,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:53:11,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:53:11,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:53:11,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:53:11,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:53:11,691 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:53:11,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:53:11,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:53:11,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:53:11,695 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:53:11,696 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:53:11,697 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:53:11,698 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:53:11,699 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:53:11,700 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:53:11,701 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:53:11,701 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:53:11,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:53:11,703 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:53:11,704 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:53:11,712 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:53:11,755 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:53:11,760 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:53:11,760 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:53:11,761 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:53:11,762 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:53:11,763 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:53:11,763 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:53:11,763 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:53:11,764 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:53:11,764 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:53:11,765 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:53:11,765 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:53:11,766 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:53:11,766 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:53:11,766 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:53:11,766 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:53:11,767 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:53:11,767 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:53:11,767 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:53:11,768 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:53:11,768 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:53:11,768 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:53:11,768 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:53:11,769 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:53:11,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:53:11,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:53:11,771 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:53:11,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:53:11,771 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:53:11,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:53:11,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:53:11,772 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:53:11,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:53:11,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:53:11,773 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:53:11,773 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:53:11,773 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:53:11,774 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:53:11,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:53:11,774 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:53:11,774 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:53:11,775 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7a194b3d6e079d2329a0d70eaa59b34ff3d58300de8b046ef1cd7cff7f67b94 [2022-11-19 07:53:12,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:53:12,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:53:12,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:53:12,097 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:53:12,098 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:53:12,100 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c [2022-11-19 07:53:12,176 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/data/f64e9bfa8/50db183d154648768758e2b42a1c2b60/FLAG05374e9ca [2022-11-19 07:53:12,842 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:53:12,843 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c [2022-11-19 07:53:12,862 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/data/f64e9bfa8/50db183d154648768758e2b42a1c2b60/FLAG05374e9ca [2022-11-19 07:53:13,110 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/data/f64e9bfa8/50db183d154648768758e2b42a1c2b60 [2022-11-19 07:53:13,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:53:13,115 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:53:13,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:53:13,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:53:13,121 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:53:13,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:53:13" (1/1) ... [2022-11-19 07:53:13,124 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@534ed43c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:13, skipping insertion in model container [2022-11-19 07:53:13,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:53:13" (1/1) ... [2022-11-19 07:53:13,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:53:13,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:53:13,542 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c[17915,17928] [2022-11-19 07:53:13,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:53:13,561 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:53:13,657 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c[17915,17928] [2022-11-19 07:53:13,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:53:13,689 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:53:13,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:13 WrapperNode [2022-11-19 07:53:13,690 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:53:13,692 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:53:13,692 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:53:13,692 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:53:13,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:13" (1/1) ... [2022-11-19 07:53:13,727 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:13" (1/1) ... [2022-11-19 07:53:13,774 INFO L138 Inliner]: procedures = 58, calls = 105, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 230 [2022-11-19 07:53:13,775 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:53:13,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:53:13,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:53:13,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:53:13,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:13" (1/1) ... [2022-11-19 07:53:13,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:13" (1/1) ... [2022-11-19 07:53:13,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:13" (1/1) ... [2022-11-19 07:53:13,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:13" (1/1) ... [2022-11-19 07:53:13,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:13" (1/1) ... [2022-11-19 07:53:13,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:13" (1/1) ... [2022-11-19 07:53:13,822 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:13" (1/1) ... [2022-11-19 07:53:13,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:13" (1/1) ... [2022-11-19 07:53:13,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:53:13,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:53:13,836 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:53:13,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:53:13,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:13" (1/1) ... [2022-11-19 07:53:13,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:53:13,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:53:13,873 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:53:13,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:53:13,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:53:13,920 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-19 07:53:13,920 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-19 07:53:13,921 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-19 07:53:13,921 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-19 07:53:13,921 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-19 07:53:13,922 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-19 07:53:13,922 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-19 07:53:13,922 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-19 07:53:13,923 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-19 07:53:13,923 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-19 07:53:13,923 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2022-11-19 07:53:13,923 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2022-11-19 07:53:13,924 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-11-19 07:53:13,924 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-11-19 07:53:13,924 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-19 07:53:13,924 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-19 07:53:13,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:53:13,925 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-19 07:53:13,925 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-19 07:53:13,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:53:13,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:53:14,017 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:53:14,019 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:53:14,428 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:53:14,595 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:53:14,595 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 07:53:14,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:14 BoogieIcfgContainer [2022-11-19 07:53:14,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:53:14,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:53:14,611 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:53:14,615 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:53:14,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:53:13" (1/3) ... [2022-11-19 07:53:14,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@435781fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:53:14, skipping insertion in model container [2022-11-19 07:53:14,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:13" (2/3) ... [2022-11-19 07:53:14,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@435781fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:53:14, skipping insertion in model container [2022-11-19 07:53:14,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:14" (3/3) ... [2022-11-19 07:53:14,619 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product53.cil.c [2022-11-19 07:53:14,639 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:53:14,640 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:53:14,728 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:53:14,743 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@b1bff0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:53:14,743 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:53:14,748 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 52 states have internal predecessors, (60), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-19 07:53:14,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 07:53:14,761 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:14,762 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:14,763 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:14,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:14,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1080362011, now seen corresponding path program 1 times [2022-11-19 07:53:14,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:14,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086740066] [2022-11-19 07:53:14,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:14,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:14,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:15,053 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:53:15,053 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:15,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086740066] [2022-11-19 07:53:15,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086740066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:15,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:15,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:53:15,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562200155] [2022-11-19 07:53:15,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:15,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:53:15,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:15,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:53:15,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:53:15,108 INFO L87 Difference]: Start difference. First operand has 69 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 52 states have internal predecessors, (60), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:53:15,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:15,206 INFO L93 Difference]: Finished difference Result 136 states and 185 transitions. [2022-11-19 07:53:15,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:53:15,215 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-11-19 07:53:15,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:15,226 INFO L225 Difference]: With dead ends: 136 [2022-11-19 07:53:15,227 INFO L226 Difference]: Without dead ends: 64 [2022-11-19 07:53:15,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:53:15,235 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:15,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:53:15,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-19 07:53:15,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-11-19 07:53:15,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 48 states have internal predecessors, (52), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-19 07:53:15,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 83 transitions. [2022-11-19 07:53:15,301 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 83 transitions. Word has length 21 [2022-11-19 07:53:15,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:15,301 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 83 transitions. [2022-11-19 07:53:15,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:53:15,302 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 83 transitions. [2022-11-19 07:53:15,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 07:53:15,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:15,305 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:15,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:53:15,306 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:15,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:15,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1884563309, now seen corresponding path program 1 times [2022-11-19 07:53:15,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:15,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54681138] [2022-11-19 07:53:15,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:15,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:15,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:15,424 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:53:15,425 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:15,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54681138] [2022-11-19 07:53:15,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54681138] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:15,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:15,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:53:15,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60588642] [2022-11-19 07:53:15,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:15,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:53:15,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:15,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:53:15,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:53:15,429 INFO L87 Difference]: Start difference. First operand 64 states and 83 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 07:53:15,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:15,486 INFO L93 Difference]: Finished difference Result 126 states and 167 transitions. [2022-11-19 07:53:15,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:53:15,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2022-11-19 07:53:15,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:15,489 INFO L225 Difference]: With dead ends: 126 [2022-11-19 07:53:15,489 INFO L226 Difference]: Without dead ends: 64 [2022-11-19 07:53:15,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:53:15,492 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 70 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:15,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 65 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:53:15,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-19 07:53:15,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-11-19 07:53:15,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 48 states have internal predecessors, (51), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-19 07:53:15,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 82 transitions. [2022-11-19 07:53:15,526 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 82 transitions. Word has length 24 [2022-11-19 07:53:15,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:15,527 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 82 transitions. [2022-11-19 07:53:15,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 07:53:15,528 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 82 transitions. [2022-11-19 07:53:15,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-19 07:53:15,529 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:15,529 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:15,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:53:15,529 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:15,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:15,530 INFO L85 PathProgramCache]: Analyzing trace with hash -250429362, now seen corresponding path program 1 times [2022-11-19 07:53:15,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:15,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941112203] [2022-11-19 07:53:15,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:15,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:15,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:15,656 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:53:15,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:15,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941112203] [2022-11-19 07:53:15,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941112203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:15,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:15,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:53:15,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633184259] [2022-11-19 07:53:15,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:15,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:53:15,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:15,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:53:15,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:53:15,660 INFO L87 Difference]: Start difference. First operand 64 states and 82 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 07:53:15,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:15,751 INFO L93 Difference]: Finished difference Result 175 states and 238 transitions. [2022-11-19 07:53:15,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:53:15,752 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2022-11-19 07:53:15,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:15,755 INFO L225 Difference]: With dead ends: 175 [2022-11-19 07:53:15,755 INFO L226 Difference]: Without dead ends: 113 [2022-11-19 07:53:15,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:53:15,758 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 57 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:15,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 154 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:53:15,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-11-19 07:53:15,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 111. [2022-11-19 07:53:15,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 71 states have (on average 1.2535211267605635) internal successors, (89), 79 states have internal predecessors, (89), 24 states have call successors, (24), 17 states have call predecessors, (24), 15 states have return successors, (32), 20 states have call predecessors, (32), 22 states have call successors, (32) [2022-11-19 07:53:15,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 145 transitions. [2022-11-19 07:53:15,781 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 145 transitions. Word has length 30 [2022-11-19 07:53:15,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:15,782 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 145 transitions. [2022-11-19 07:53:15,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 07:53:15,783 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 145 transitions. [2022-11-19 07:53:15,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-19 07:53:15,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:15,785 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:15,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:53:15,785 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:15,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:15,786 INFO L85 PathProgramCache]: Analyzing trace with hash 851485166, now seen corresponding path program 1 times [2022-11-19 07:53:15,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:15,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664098053] [2022-11-19 07:53:15,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:15,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:15,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:15,861 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:53:15,862 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:15,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664098053] [2022-11-19 07:53:15,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664098053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:15,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:15,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:53:15,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905465324] [2022-11-19 07:53:15,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:15,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:53:15,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:15,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:53:15,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:53:15,865 INFO L87 Difference]: Start difference. First operand 111 states and 145 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-19 07:53:15,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:15,922 INFO L93 Difference]: Finished difference Result 178 states and 228 transitions. [2022-11-19 07:53:15,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:53:15,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2022-11-19 07:53:15,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:15,925 INFO L225 Difference]: With dead ends: 178 [2022-11-19 07:53:15,925 INFO L226 Difference]: Without dead ends: 95 [2022-11-19 07:53:15,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:53:15,927 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 7 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:15,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 103 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:53:15,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-11-19 07:53:15,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2022-11-19 07:53:15,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 61 states have (on average 1.2622950819672132) internal successors, (77), 69 states have internal predecessors, (77), 18 states have call successors, (18), 15 states have call predecessors, (18), 15 states have return successors, (24), 16 states have call predecessors, (24), 18 states have call successors, (24) [2022-11-19 07:53:15,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 119 transitions. [2022-11-19 07:53:15,947 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 119 transitions. Word has length 35 [2022-11-19 07:53:15,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:15,947 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 119 transitions. [2022-11-19 07:53:15,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-19 07:53:15,948 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 119 transitions. [2022-11-19 07:53:15,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-19 07:53:15,949 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:15,949 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:15,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:53:15,950 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:15,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:15,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1402126779, now seen corresponding path program 1 times [2022-11-19 07:53:15,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:15,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171447249] [2022-11-19 07:53:15,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:15,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:15,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:16,441 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:53:16,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:16,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171447249] [2022-11-19 07:53:16,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171447249] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:16,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:16,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 07:53:16,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517166947] [2022-11-19 07:53:16,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:16,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:53:16,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:16,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:53:16,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:53:16,445 INFO L87 Difference]: Start difference. First operand 95 states and 119 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-19 07:53:16,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:16,681 INFO L93 Difference]: Finished difference Result 277 states and 346 transitions. [2022-11-19 07:53:16,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:53:16,682 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 37 [2022-11-19 07:53:16,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:16,685 INFO L225 Difference]: With dead ends: 277 [2022-11-19 07:53:16,685 INFO L226 Difference]: Without dead ends: 184 [2022-11-19 07:53:16,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:53:16,687 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 109 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:16,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 233 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:53:16,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-11-19 07:53:16,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 176. [2022-11-19 07:53:16,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 113 states have (on average 1.238938053097345) internal successors, (140), 125 states have internal predecessors, (140), 33 states have call successors, (33), 28 states have call predecessors, (33), 29 states have return successors, (45), 30 states have call predecessors, (45), 33 states have call successors, (45) [2022-11-19 07:53:16,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 218 transitions. [2022-11-19 07:53:16,718 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 218 transitions. Word has length 37 [2022-11-19 07:53:16,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:16,719 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 218 transitions. [2022-11-19 07:53:16,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-19 07:53:16,719 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 218 transitions. [2022-11-19 07:53:16,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-19 07:53:16,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:16,721 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:16,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:53:16,722 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:16,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:16,722 INFO L85 PathProgramCache]: Analyzing trace with hash 775405151, now seen corresponding path program 1 times [2022-11-19 07:53:16,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:16,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569051957] [2022-11-19 07:53:16,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:16,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:16,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:17,073 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:53:17,074 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:17,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569051957] [2022-11-19 07:53:17,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569051957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:17,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:17,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 07:53:17,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156497333] [2022-11-19 07:53:17,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:17,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:53:17,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:17,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:53:17,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:53:17,079 INFO L87 Difference]: Start difference. First operand 176 states and 218 transitions. Second operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-19 07:53:17,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:17,751 INFO L93 Difference]: Finished difference Result 424 states and 540 transitions. [2022-11-19 07:53:17,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 07:53:17,752 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 40 [2022-11-19 07:53:17,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:17,761 INFO L225 Difference]: With dead ends: 424 [2022-11-19 07:53:17,761 INFO L226 Difference]: Without dead ends: 304 [2022-11-19 07:53:17,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-11-19 07:53:17,772 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 179 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:17,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 289 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-19 07:53:17,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-11-19 07:53:17,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 261. [2022-11-19 07:53:17,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 172 states have (on average 1.244186046511628) internal successors, (214), 189 states have internal predecessors, (214), 46 states have call successors, (46), 35 states have call predecessors, (46), 42 states have return successors, (65), 47 states have call predecessors, (65), 46 states have call successors, (65) [2022-11-19 07:53:17,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 325 transitions. [2022-11-19 07:53:17,821 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 325 transitions. Word has length 40 [2022-11-19 07:53:17,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:17,822 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 325 transitions. [2022-11-19 07:53:17,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-19 07:53:17,823 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 325 transitions. [2022-11-19 07:53:17,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-19 07:53:17,824 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:17,824 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:17,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:53:17,825 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:17,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:17,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1685826622, now seen corresponding path program 1 times [2022-11-19 07:53:17,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:17,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367093476] [2022-11-19 07:53:17,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:17,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:17,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:17,950 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:53:17,950 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:17,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367093476] [2022-11-19 07:53:17,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367093476] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:17,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:17,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 07:53:17,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739946496] [2022-11-19 07:53:17,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:17,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 07:53:17,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:17,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 07:53:17,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:53:17,955 INFO L87 Difference]: Start difference. First operand 261 states and 325 transitions. Second operand has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-19 07:53:18,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:18,292 INFO L93 Difference]: Finished difference Result 555 states and 698 transitions. [2022-11-19 07:53:18,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 07:53:18,292 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 40 [2022-11-19 07:53:18,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:18,297 INFO L225 Difference]: With dead ends: 555 [2022-11-19 07:53:18,297 INFO L226 Difference]: Without dead ends: 296 [2022-11-19 07:53:18,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-11-19 07:53:18,303 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 69 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:18,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 276 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:53:18,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2022-11-19 07:53:18,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 268. [2022-11-19 07:53:18,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 176 states have (on average 1.2102272727272727) internal successors, (213), 193 states have internal predecessors, (213), 47 states have call successors, (47), 35 states have call predecessors, (47), 44 states have return successors, (70), 50 states have call predecessors, (70), 47 states have call successors, (70) [2022-11-19 07:53:18,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 330 transitions. [2022-11-19 07:53:18,374 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 330 transitions. Word has length 40 [2022-11-19 07:53:18,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:18,377 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 330 transitions. [2022-11-19 07:53:18,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-19 07:53:18,377 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 330 transitions. [2022-11-19 07:53:18,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-19 07:53:18,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:18,389 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:18,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:53:18,390 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:18,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:18,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1803947791, now seen corresponding path program 1 times [2022-11-19 07:53:18,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:18,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145116647] [2022-11-19 07:53:18,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:18,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:18,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:18,529 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-19 07:53:18,530 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:18,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145116647] [2022-11-19 07:53:18,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145116647] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:53:18,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939626488] [2022-11-19 07:53:18,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:18,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:53:18,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:53:18,534 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:53:18,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:53:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:18,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 07:53:18,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:53:18,783 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:53:18,783 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:53:18,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939626488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:18,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:53:18,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-11-19 07:53:18,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494489329] [2022-11-19 07:53:18,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:18,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:53:18,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:18,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:53:18,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:53:18,785 INFO L87 Difference]: Start difference. First operand 268 states and 330 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-19 07:53:18,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:18,860 INFO L93 Difference]: Finished difference Result 405 states and 503 transitions. [2022-11-19 07:53:18,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:53:18,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 70 [2022-11-19 07:53:18,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:18,862 INFO L225 Difference]: With dead ends: 405 [2022-11-19 07:53:18,862 INFO L226 Difference]: Without dead ends: 258 [2022-11-19 07:53:18,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:53:18,864 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 35 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:18,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 119 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:53:18,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-11-19 07:53:18,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2022-11-19 07:53:18,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 169 states have (on average 1.1775147928994083) internal successors, (199), 185 states have internal predecessors, (199), 45 states have call successors, (45), 35 states have call predecessors, (45), 43 states have return successors, (56), 48 states have call predecessors, (56), 45 states have call successors, (56) [2022-11-19 07:53:18,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 300 transitions. [2022-11-19 07:53:18,897 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 300 transitions. Word has length 70 [2022-11-19 07:53:18,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:18,897 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 300 transitions. [2022-11-19 07:53:18,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-19 07:53:18,898 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 300 transitions. [2022-11-19 07:53:18,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-19 07:53:18,899 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:18,899 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:18,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:53:19,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:53:19,107 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:19,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:19,107 INFO L85 PathProgramCache]: Analyzing trace with hash -925446459, now seen corresponding path program 1 times [2022-11-19 07:53:19,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:19,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431550180] [2022-11-19 07:53:19,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:19,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:19,306 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-19 07:53:19,306 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:19,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431550180] [2022-11-19 07:53:19,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431550180] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:53:19,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971565634] [2022-11-19 07:53:19,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:19,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:53:19,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:53:19,311 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:53:19,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:53:19,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:19,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-19 07:53:19,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:53:19,579 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 20 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:53:19,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:53:19,863 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-19 07:53:19,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971565634] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:53:19,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1432522674] [2022-11-19 07:53:19,894 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2022-11-19 07:53:19,895 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:53:19,899 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:53:19,905 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:53:19,906 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:53:23,479 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 54 for LOIs [2022-11-19 07:53:23,492 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 48 for LOIs [2022-11-19 07:53:24,173 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__lowWaterSensor with input of size 64 for LOIs [2022-11-19 07:53:24,876 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 57 for LOIs [2022-11-19 07:53:25,008 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 20 for LOIs [2022-11-19 07:53:25,010 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 39 for LOIs [2022-11-19 07:53:25,019 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:53:31,443 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6317#(and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| |timeShift_getWaterLevel_#res#1|) (= |timeShift_getWaterLevel_~retValue_acc~11#1| ~waterLevel~0) (<= ~pumpRunning~0 2147483647) (= ~methaneLevelCritical~0 0) (<= 0 (+ 2147483648 |old(~pumpRunning~0)|)) (= ~head~0.offset 0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1| 0)) (<= |old(~pumpRunning~0)| 2147483647) (= |timeShift_getWaterLevel_~retValue_acc~11#1| |timeShift_getWaterLevel_#res#1|) (= 1 ~systemActive~0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| 2)) (<= 0 (+ 2147483648 |timeShift_getWaterLevel_#res#1|)) (<= |timeShift_getWaterLevel_#res#1| 2147483647) (= ~head~0.base 0) (<= 0 (+ ~pumpRunning~0 2147483648)) (= |#NULL.offset| 0) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-19 07:53:31,443 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:53:31,444 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:53:31,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 15 [2022-11-19 07:53:31,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973551465] [2022-11-19 07:53:31,444 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:53:31,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-19 07:53:31,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:31,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-19 07:53:31,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=293, Invalid=1963, Unknown=0, NotChecked=0, Total=2256 [2022-11-19 07:53:31,446 INFO L87 Difference]: Start difference. First operand 258 states and 300 transitions. Second operand has 15 states, 12 states have (on average 7.916666666666667) internal successors, (95), 13 states have internal predecessors, (95), 7 states have call successors, (23), 4 states have call predecessors, (23), 8 states have return successors, (22), 10 states have call predecessors, (22), 7 states have call successors, (22) [2022-11-19 07:53:32,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:32,358 INFO L93 Difference]: Finished difference Result 338 states and 403 transitions. [2022-11-19 07:53:32,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-19 07:53:32,359 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 7.916666666666667) internal successors, (95), 13 states have internal predecessors, (95), 7 states have call successors, (23), 4 states have call predecessors, (23), 8 states have return successors, (22), 10 states have call predecessors, (22), 7 states have call successors, (22) Word has length 74 [2022-11-19 07:53:32,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:32,361 INFO L225 Difference]: With dead ends: 338 [2022-11-19 07:53:32,362 INFO L226 Difference]: Without dead ends: 336 [2022-11-19 07:53:32,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 179 SyntacticMatches, 11 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1439 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=466, Invalid=3316, Unknown=0, NotChecked=0, Total=3782 [2022-11-19 07:53:32,364 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 174 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:32,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 663 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-19 07:53:32,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-11-19 07:53:32,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 294. [2022-11-19 07:53:32,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 190 states have (on average 1.168421052631579) internal successors, (222), 211 states have internal predecessors, (222), 53 states have call successors, (53), 43 states have call predecessors, (53), 50 states have return successors, (68), 54 states have call predecessors, (68), 53 states have call successors, (68) [2022-11-19 07:53:32,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 343 transitions. [2022-11-19 07:53:32,396 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 343 transitions. Word has length 74 [2022-11-19 07:53:32,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:32,397 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 343 transitions. [2022-11-19 07:53:32,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 7.916666666666667) internal successors, (95), 13 states have internal predecessors, (95), 7 states have call successors, (23), 4 states have call predecessors, (23), 8 states have return successors, (22), 10 states have call predecessors, (22), 7 states have call successors, (22) [2022-11-19 07:53:32,397 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 343 transitions. [2022-11-19 07:53:32,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-19 07:53:32,399 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:32,399 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:32,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:53:32,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:53:32,605 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:32,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:32,606 INFO L85 PathProgramCache]: Analyzing trace with hash 979712234, now seen corresponding path program 1 times [2022-11-19 07:53:32,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:32,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846820208] [2022-11-19 07:53:32,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:32,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:32,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:32,826 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-19 07:53:32,826 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:32,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846820208] [2022-11-19 07:53:32,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846820208] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:53:32,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666390353] [2022-11-19 07:53:32,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:32,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:53:32,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:53:32,830 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:53:32,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:53:32,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:32,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-19 07:53:32,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:53:33,223 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 63 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:53:33,223 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:53:33,568 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-19 07:53:33,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666390353] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:53:33,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1242356764] [2022-11-19 07:53:33,571 INFO L159 IcfgInterpreter]: Started Sifa with 45 locations of interest [2022-11-19 07:53:33,572 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:53:33,572 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:53:33,572 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:53:33,573 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:53:35,796 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 35 for LOIs [2022-11-19 07:53:35,800 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 30 for LOIs [2022-11-19 07:53:36,195 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__lowWaterSensor with input of size 29 for LOIs [2022-11-19 07:53:36,260 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 26 for LOIs [2022-11-19 07:53:36,291 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 56 for LOIs [2022-11-19 07:53:36,305 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:53:40,860 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7923#(and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| |timeShift_getWaterLevel_#res#1|) (= |timeShift_getWaterLevel_~retValue_acc~11#1| ~waterLevel~0) (= ~head~0.offset 0) (<= |#NULL.offset| 0) (= |timeShift_getWaterLevel_~retValue_acc~11#1| |timeShift_getWaterLevel_#res#1|) (= 1 ~systemActive~0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| 2)) (<= ~methaneLevelCritical~0 0) (<= 0 ~head~0.base) (<= 0 ~methaneLevelCritical~0) (= |old(~waterLevel~0)| ~waterLevel~0) (<= |timeShift_getWaterLevel_#res#1| 2147483647) (<= 2 |timeShift_getWaterLevel_#res#1|) (<= ~head~0.base 0) (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|) (<= 0 |#NULL.offset|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1|) (= ~pumpRunning~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-19 07:53:40,860 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:53:40,860 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:53:40,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 20 [2022-11-19 07:53:40,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834727347] [2022-11-19 07:53:40,861 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:53:40,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-19 07:53:40,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:40,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-19 07:53:40,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=269, Invalid=1893, Unknown=0, NotChecked=0, Total=2162 [2022-11-19 07:53:40,863 INFO L87 Difference]: Start difference. First operand 294 states and 343 transitions. Second operand has 20 states, 20 states have (on average 5.4) internal successors, (108), 20 states have internal predecessors, (108), 9 states have call successors, (23), 5 states have call predecessors, (23), 8 states have return successors, (24), 10 states have call predecessors, (24), 9 states have call successors, (24) [2022-11-19 07:53:42,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:42,750 INFO L93 Difference]: Finished difference Result 859 states and 1094 transitions. [2022-11-19 07:53:42,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-19 07:53:42,751 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.4) internal successors, (108), 20 states have internal predecessors, (108), 9 states have call successors, (23), 5 states have call predecessors, (23), 8 states have return successors, (24), 10 states have call predecessors, (24), 9 states have call successors, (24) Word has length 93 [2022-11-19 07:53:42,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:42,755 INFO L225 Difference]: With dead ends: 859 [2022-11-19 07:53:42,755 INFO L226 Difference]: Without dead ends: 559 [2022-11-19 07:53:42,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 249 SyntacticMatches, 11 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2064 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=645, Invalid=4757, Unknown=0, NotChecked=0, Total=5402 [2022-11-19 07:53:42,759 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 523 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 378 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:42,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 374 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [378 Valid, 1062 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-19 07:53:42,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-11-19 07:53:42,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 368. [2022-11-19 07:53:42,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 238 states have (on average 1.1302521008403361) internal successors, (269), 261 states have internal predecessors, (269), 63 states have call successors, (63), 56 states have call predecessors, (63), 66 states have return successors, (83), 67 states have call predecessors, (83), 63 states have call successors, (83) [2022-11-19 07:53:42,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 415 transitions. [2022-11-19 07:53:42,807 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 415 transitions. Word has length 93 [2022-11-19 07:53:42,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:42,808 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 415 transitions. [2022-11-19 07:53:42,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.4) internal successors, (108), 20 states have internal predecessors, (108), 9 states have call successors, (23), 5 states have call predecessors, (23), 8 states have return successors, (24), 10 states have call predecessors, (24), 9 states have call successors, (24) [2022-11-19 07:53:42,808 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 415 transitions. [2022-11-19 07:53:42,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-19 07:53:42,810 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:42,810 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:42,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:53:43,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-19 07:53:43,017 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:43,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:43,018 INFO L85 PathProgramCache]: Analyzing trace with hash 72161971, now seen corresponding path program 1 times [2022-11-19 07:53:43,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:43,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867934820] [2022-11-19 07:53:43,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:43,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:43,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:44,114 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 15 proven. 41 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-19 07:53:44,114 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:44,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867934820] [2022-11-19 07:53:44,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867934820] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:53:44,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648497049] [2022-11-19 07:53:44,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:44,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:53:44,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:53:44,116 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:53:44,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:53:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:44,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-19 07:53:44,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:53:44,812 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 25 proven. 54 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:53:44,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:53:45,902 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 51 proven. 5 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-19 07:53:45,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648497049] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:53:45,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [690677672] [2022-11-19 07:53:45,906 INFO L159 IcfgInterpreter]: Started Sifa with 45 locations of interest [2022-11-19 07:53:45,906 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:53:45,906 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:53:45,906 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:53:45,907 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:53:48,342 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 35 for LOIs [2022-11-19 07:53:48,347 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 30 for LOIs [2022-11-19 07:53:48,491 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__lowWaterSensor with input of size 26 for LOIs [2022-11-19 07:53:48,541 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 26 for LOIs [2022-11-19 07:53:48,563 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 56 for LOIs [2022-11-19 07:53:48,577 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:53:53,119 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10515#(and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| |timeShift_getWaterLevel_#res#1|) (= |timeShift_getWaterLevel_~retValue_acc~11#1| ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (= |timeShift_getWaterLevel_~retValue_acc~11#1| |timeShift_getWaterLevel_#res#1|) (= 1 ~systemActive~0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| 2)) (= |old(~waterLevel~0)| ~waterLevel~0) (<= |timeShift_getWaterLevel_#res#1| 2147483647) (<= 2 |timeShift_getWaterLevel_#res#1|) (= ~head~0.base 0) (= |#NULL.offset| 0) (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1|) (= ~pumpRunning~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-19 07:53:53,119 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:53:53,119 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:53:53,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 13, 11] total 36 [2022-11-19 07:53:53,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072023269] [2022-11-19 07:53:53,120 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:53:53,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-19 07:53:53,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:53,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-19 07:53:53,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=500, Invalid=3406, Unknown=0, NotChecked=0, Total=3906 [2022-11-19 07:53:53,123 INFO L87 Difference]: Start difference. First operand 368 states and 415 transitions. Second operand has 36 states, 35 states have (on average 4.885714285714286) internal successors, (171), 36 states have internal predecessors, (171), 19 states have call successors, (37), 9 states have call predecessors, (37), 13 states have return successors, (36), 21 states have call predecessors, (36), 18 states have call successors, (36) [2022-11-19 07:53:57,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:57,062 INFO L93 Difference]: Finished difference Result 901 states and 1050 transitions. [2022-11-19 07:53:57,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-19 07:53:57,063 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 4.885714285714286) internal successors, (171), 36 states have internal predecessors, (171), 19 states have call successors, (37), 9 states have call predecessors, (37), 13 states have return successors, (36), 21 states have call predecessors, (36), 18 states have call successors, (36) Word has length 98 [2022-11-19 07:53:57,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:57,064 INFO L225 Difference]: With dead ends: 901 [2022-11-19 07:53:57,064 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 07:53:57,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 268 SyntacticMatches, 11 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4122 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=1497, Invalid=9423, Unknown=0, NotChecked=0, Total=10920 [2022-11-19 07:53:57,069 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 1759 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 1940 mSolverCounterSat, 1396 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1759 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 3336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1396 IncrementalHoareTripleChecker+Valid, 1940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:57,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1759 Valid, 638 Invalid, 3336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1396 Valid, 1940 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-19 07:53:57,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 07:53:57,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 07:53:57,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:53:57,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 07:53:57,073 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 98 [2022-11-19 07:53:57,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:57,073 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 07:53:57,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 4.885714285714286) internal successors, (171), 36 states have internal predecessors, (171), 19 states have call successors, (37), 9 states have call predecessors, (37), 13 states have return successors, (36), 21 states have call predecessors, (36), 18 states have call successors, (36) [2022-11-19 07:53:57,074 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 07:53:57,074 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 07:53:57,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:53:57,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 07:53:57,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:53:57,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 07:54:03,687 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 551 558) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-19 07:54:03,687 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 551 558) no Hoare annotation was computed. [2022-11-19 07:54:03,687 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 458 464) no Hoare annotation was computed. [2022-11-19 07:54:03,687 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 458 464) the Hoare annotation is: true [2022-11-19 07:54:03,687 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 943 954) the Hoare annotation is: true [2022-11-19 07:54:03,688 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 943 954) no Hoare annotation was computed. [2022-11-19 07:54:03,688 INFO L899 garLoopResultBuilder]: For program point L833(line 833) no Hoare annotation was computed. [2022-11-19 07:54:03,688 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 812 841) no Hoare annotation was computed. [2022-11-19 07:54:03,688 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 812 841) the Hoare annotation is: true [2022-11-19 07:54:03,688 INFO L899 garLoopResultBuilder]: For program point L826(lines 826 830) no Hoare annotation was computed. [2022-11-19 07:54:03,689 INFO L902 garLoopResultBuilder]: At program point L826-1(lines 826 830) the Hoare annotation is: true [2022-11-19 07:54:03,689 INFO L902 garLoopResultBuilder]: At program point L822-2(lines 822 836) the Hoare annotation is: true [2022-11-19 07:54:03,689 INFO L902 garLoopResultBuilder]: At program point L818(line 818) the Hoare annotation is: true [2022-11-19 07:54:03,689 INFO L899 garLoopResultBuilder]: For program point L818-1(line 818) no Hoare annotation was computed. [2022-11-19 07:54:03,689 INFO L902 garLoopResultBuilder]: At program point L837(lines 812 841) the Hoare annotation is: true [2022-11-19 07:54:03,690 INFO L895 garLoopResultBuilder]: At program point L791(line 791) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse6 (= ~pumpRunning~0 1)) (.cse7 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| ~waterLevel~0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (<= 1 ~switchedOnBeforeTS~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and .cse1 (<= ~waterLevel~0 1) .cse2 .cse3) (not (< |old(~waterLevel~0)| 3))) (let ((.cse4 (= ~waterLevel~0 1))) (or .cse0 (and .cse2 .cse4 .cse5 .cse6) .cse7 (and .cse1 .cse2 .cse4 .cse5) (not (= |old(~waterLevel~0)| 2)))) (let ((.cse9 (< 0 |old(~waterLevel~0)|))) (let ((.cse8 (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse9))) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 (and (<= ~waterLevel~0 0) .cse2 (or .cse8 .cse3) .cse5 .cse6) .cse7 (and .cse1 .cse2 (or (and (not .cse9) .cse3) .cse8) .cse5) (not (<= 1 |old(~switchedOnBeforeTS~0)|))))))) [2022-11-19 07:54:03,690 INFO L899 garLoopResultBuilder]: For program point L791-1(line 791) no Hoare annotation was computed. [2022-11-19 07:54:03,690 INFO L895 garLoopResultBuilder]: At program point L445-1(lines 445 451) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (= ~pumpRunning~0 1)) (.cse5 (= ~pumpRunning~0 0)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (<= 1 ~switchedOnBeforeTS~0))) (and (let ((.cse2 (= ~waterLevel~0 1))) (or .cse0 .cse1 (and .cse2 .cse3 .cse4) (not (= |old(~waterLevel~0)| 2)) (and .cse5 .cse2 .cse3))) (or (and (= 2 ~waterLevel~0) .cse6 .cse4) (not (= |old(~pumpRunning~0)| 0)) (and .cse5 .cse6) .cse0 (not (< |old(~waterLevel~0)| 3))) (let ((.cse8 (< 0 |old(~waterLevel~0)|))) (let ((.cse7 (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse8))) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 (and (<= ~waterLevel~0 0) (or .cse7 .cse6) .cse3 .cse4) (not (<= 1 |old(~switchedOnBeforeTS~0)|)) (and .cse5 (or (and (not .cse8) .cse6) .cse7) .cse3)))))) [2022-11-19 07:54:03,691 INFO L895 garLoopResultBuilder]: At program point L532(line 532) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (<= 1 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 1)) (.cse4 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (and (= ~waterLevel~0 1) .cse2 .cse3) (not (= |old(~waterLevel~0)| 2))) (or (not (= |old(~waterLevel~0)| 1)) .cse0 (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse2 .cse3) .cse1 .cse4) (or .cse0 .cse1 (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse2 .cse3) (not (<= |old(~waterLevel~0)| 0)) .cse4) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< |old(~waterLevel~0)| 3))))) [2022-11-19 07:54:03,691 INFO L895 garLoopResultBuilder]: At program point L528(line 528) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (<= 1 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 1)) (.cse4 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (and (= ~waterLevel~0 1) .cse2 .cse3) (not (= |old(~waterLevel~0)| 2))) (or (not (= |old(~waterLevel~0)| 1)) .cse0 (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse2 .cse3) .cse1 .cse4) (or .cse0 .cse1 (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse2 .cse3) (not (<= |old(~waterLevel~0)| 0)) .cse4) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< |old(~waterLevel~0)| 3))))) [2022-11-19 07:54:03,692 INFO L895 garLoopResultBuilder]: At program point L912(line 912) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 2))) (or .cse0 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse2) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse2))) [2022-11-19 07:54:03,692 INFO L895 garLoopResultBuilder]: At program point L776(line 776) the Hoare annotation is: (let ((.cse7 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (<= 1 ~switchedOnBeforeTS~0)) (.cse3 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse5 (not (< |old(~waterLevel~0)| 3))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (and .cse7 (= ~pumpRunning~0 1)))) (and (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse3 .cse5) (or .cse6 (and (= ~pumpRunning~0 0) .cse7) .cse0 .cse5) (or .cse6 .cse0 .cse4 .cse3 .cse5) (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 2)) .cse2)))) [2022-11-19 07:54:03,692 INFO L895 garLoopResultBuilder]: At program point L776-1(line 776) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (= 1 ~systemActive~0))) (let ((.cse1 (not .cse4)) (.cse2 (and (<= 1 |timeShift___utac_acc__Specification5_spec__2_#t~ret46#1|) .cse4 .cse0 (< ~waterLevel~0 3) (= ~pumpRunning~0 1))) (.cse3 (not (= |old(~pumpRunning~0)| 1)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) .cse0) .cse1 (not (< |old(~waterLevel~0)| 3))) (or .cse1 .cse2 .cse3 (not (= |old(~waterLevel~0)| 2))) (or (not (<= |old(~waterLevel~0)| 1)) .cse1 .cse2 .cse3 (not (<= 1 |old(~switchedOnBeforeTS~0)|)))))) [2022-11-19 07:54:03,693 INFO L895 garLoopResultBuilder]: At program point L537(line 537) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 2))) (or .cse0 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse2) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 .cse2))) [2022-11-19 07:54:03,693 INFO L899 garLoopResultBuilder]: For program point L793(lines 793 803) no Hoare annotation was computed. [2022-11-19 07:54:03,693 INFO L895 garLoopResultBuilder]: At program point L537-1(lines 518 542) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (= ~pumpRunning~0 1)) (.cse5 (= ~pumpRunning~0 0)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (<= 1 ~switchedOnBeforeTS~0))) (and (let ((.cse2 (= ~waterLevel~0 1))) (or .cse0 .cse1 (and .cse2 .cse3 .cse4) (not (= |old(~waterLevel~0)| 2)) (and .cse5 .cse2 .cse3))) (or (and (= 2 ~waterLevel~0) .cse6 .cse4) (not (= |old(~pumpRunning~0)| 0)) (and .cse5 .cse6) .cse0 (not (< |old(~waterLevel~0)| 3))) (let ((.cse8 (< 0 |old(~waterLevel~0)|))) (let ((.cse7 (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse8))) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 (and (<= ~waterLevel~0 0) (or .cse7 .cse6) .cse3 .cse4) (not (<= 1 |old(~switchedOnBeforeTS~0)|)) (and .cse5 (or (and (not .cse8) .cse6) .cse7) .cse3)))))) [2022-11-19 07:54:03,693 INFO L899 garLoopResultBuilder]: For program point L789(lines 789 806) no Hoare annotation was computed. [2022-11-19 07:54:03,694 INFO L899 garLoopResultBuilder]: For program point L438-2(lines 434 456) no Hoare annotation was computed. [2022-11-19 07:54:03,694 INFO L895 garLoopResultBuilder]: At program point L789-1(lines 781 809) the Hoare annotation is: (let ((.cse5 (= 1 ~systemActive~0))) (let ((.cse4 (= ~pumpRunning~0 0)) (.cse3 (not .cse5)) (.cse0 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| ~waterLevel~0)) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (<= 1 ~switchedOnBeforeTS~0)) (.cse2 (= ~pumpRunning~0 1)) (.cse8 (not (= |old(~pumpRunning~0)| 1)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and .cse0 .cse1 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| 2) .cse2) .cse3 (and .cse4 .cse5 .cse0 .cse1) (not (< |old(~waterLevel~0)| 3))) (let ((.cse6 (= ~waterLevel~0 1))) (or (and .cse4 .cse5 .cse0 .cse6 .cse7) .cse3 (and .cse0 .cse6 .cse7 .cse2) .cse8 (not (= |old(~waterLevel~0)| 2)))) (let ((.cse9 (< 0 |old(~waterLevel~0)|))) (let ((.cse10 (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse9))) (or (and .cse4 .cse5 .cse0 (or (and (not .cse9) .cse1) .cse10) .cse7) (not (<= |old(~waterLevel~0)| 1)) .cse3 (and (<= ~waterLevel~0 0) .cse0 (or .cse10 .cse1) .cse7 .cse2) .cse8 (not (<= 1 |old(~switchedOnBeforeTS~0)|)))))))) [2022-11-19 07:54:03,694 INFO L899 garLoopResultBuilder]: For program point L794(lines 794 800) no Hoare annotation was computed. [2022-11-19 07:54:03,695 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 431 457) the Hoare annotation is: (let ((.cse7 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (<= 1 ~switchedOnBeforeTS~0)) (.cse3 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse5 (not (< |old(~waterLevel~0)| 3))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (and .cse7 (= ~pumpRunning~0 1)))) (and (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse3 .cse5) (or .cse6 (and (= ~pumpRunning~0 0) .cse7) .cse0 .cse5) (or .cse6 .cse0 .cse4 .cse3 .cse5) (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 2)) .cse2)))) [2022-11-19 07:54:03,695 INFO L899 garLoopResultBuilder]: For program point L526(lines 526 534) no Hoare annotation was computed. [2022-11-19 07:54:03,695 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 431 457) no Hoare annotation was computed. [2022-11-19 07:54:03,695 INFO L895 garLoopResultBuilder]: At program point L522(lines 522 539) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (<= 1 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 (and (= ~waterLevel~0 1) .cse2 .cse3) (not (= |old(~waterLevel~0)| 2))) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) .cse4) .cse0 (not (< |old(~waterLevel~0)| 3))) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 (and (<= ~waterLevel~0 0) (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)) .cse4) .cse2 .cse3) (not (<= 1 |old(~switchedOnBeforeTS~0)|))))) [2022-11-19 07:54:03,696 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 912) no Hoare annotation was computed. [2022-11-19 07:54:03,696 INFO L895 garLoopResultBuilder]: At program point L894(lines 894 901) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-19 07:54:03,696 INFO L902 garLoopResultBuilder]: At program point L894-2(lines 894 901) the Hoare annotation is: true [2022-11-19 07:54:03,696 INFO L899 garLoopResultBuilder]: For program point L725(lines 725 731) no Hoare annotation was computed. [2022-11-19 07:54:03,696 INFO L899 garLoopResultBuilder]: For program point L725-1(lines 725 731) no Hoare annotation was computed. [2022-11-19 07:54:03,697 INFO L902 garLoopResultBuilder]: At program point L754(lines 695 758) the Hoare annotation is: true [2022-11-19 07:54:03,697 INFO L895 garLoopResultBuilder]: At program point L717(line 717) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) (< ~waterLevel~0 3) .cse2) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= ~waterLevel~0 2)) (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse2))) [2022-11-19 07:54:03,697 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-19 07:54:03,697 INFO L895 garLoopResultBuilder]: At program point L751(lines 704 752) the Hoare annotation is: false [2022-11-19 07:54:03,698 INFO L899 garLoopResultBuilder]: For program point L706(lines 705 750) no Hoare annotation was computed. [2022-11-19 07:54:03,698 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 07:54:03,698 INFO L895 garLoopResultBuilder]: At program point L727(line 727) the Hoare annotation is: (let ((.cse2 (< ~waterLevel~0 3)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= ~pumpRunning~0 1))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2) (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse2 .cse3) (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse3))) [2022-11-19 07:54:03,698 INFO L895 garLoopResultBuilder]: At program point L748(lines 705 750) the Hoare annotation is: (let ((.cse2 (< ~waterLevel~0 3)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= ~pumpRunning~0 1))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2) (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse2 .cse3) (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse3))) [2022-11-19 07:54:03,698 INFO L899 garLoopResultBuilder]: For program point L715(lines 715 721) no Hoare annotation was computed. [2022-11-19 07:54:03,699 INFO L899 garLoopResultBuilder]: For program point L715-1(lines 715 721) no Hoare annotation was computed. [2022-11-19 07:54:03,699 INFO L895 garLoopResultBuilder]: At program point L741-2(lines 735 746) the Hoare annotation is: (let ((.cse2 (< ~waterLevel~0 3)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= ~pumpRunning~0 1))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2) (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse2 .cse3) (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse3))) [2022-11-19 07:54:03,699 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 466 490) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (< ~waterLevel~0 3))) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-19 07:54:03,700 INFO L895 garLoopResultBuilder]: At program point L480(line 480) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (or (<= 2 ~waterLevel~0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~3#1| 0))) .cse0 (not (< ~waterLevel~0 3))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2))) [2022-11-19 07:54:03,700 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 466 490) no Hoare annotation was computed. [2022-11-19 07:54:03,700 INFO L895 garLoopResultBuilder]: At program point L474(lines 474 482) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (or (<= 2 ~waterLevel~0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~3#1| 0))) .cse0 (not (< ~waterLevel~0 3))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2))) [2022-11-19 07:54:03,700 INFO L895 garLoopResultBuilder]: At program point L470(lines 470 487) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (< ~waterLevel~0 3))) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-19 07:54:03,701 INFO L895 garLoopResultBuilder]: At program point L485(line 485) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< ~waterLevel~0 3))) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-19 07:54:03,701 INFO L899 garLoopResultBuilder]: For program point L485-1(lines 466 490) no Hoare annotation was computed. [2022-11-19 07:54:03,701 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 931 942) no Hoare annotation was computed. [2022-11-19 07:54:03,701 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 931 942) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse3 (not (= ~pumpRunning~0 1))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (not (< |old(~waterLevel~0)| 3)))) (and (or (not (= ~pumpRunning~0 0)) .cse0 .cse1 .cse2) (or .cse0 .cse3 (not (= |old(~waterLevel~0)| 2)) .cse1) (or .cse0 .cse3 .cse1 (not (<= 1 ~switchedOnBeforeTS~0)) .cse2))) [2022-11-19 07:54:03,701 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 492 516) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (< ~waterLevel~0 3))) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-19 07:54:03,702 INFO L895 garLoopResultBuilder]: At program point L506(line 506) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< ~waterLevel~0 3))) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-19 07:54:03,702 INFO L895 garLoopResultBuilder]: At program point L502(line 502) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< ~waterLevel~0 3))) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-19 07:54:03,702 INFO L899 garLoopResultBuilder]: For program point L500(lines 500 508) no Hoare annotation was computed. [2022-11-19 07:54:03,703 INFO L895 garLoopResultBuilder]: At program point L496(lines 496 513) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (< ~waterLevel~0 3))) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-19 07:54:03,703 INFO L895 garLoopResultBuilder]: At program point L511(line 511) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (< ~waterLevel~0 3))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2))) [2022-11-19 07:54:03,703 INFO L899 garLoopResultBuilder]: For program point L511-1(lines 492 516) no Hoare annotation was computed. [2022-11-19 07:54:03,703 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 492 516) no Hoare annotation was computed. [2022-11-19 07:54:03,703 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 570 578) no Hoare annotation was computed. [2022-11-19 07:54:03,703 INFO L902 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 570 578) the Hoare annotation is: true [2022-11-19 07:54:03,707 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:54:03,710 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:54:03,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:54:03 BoogieIcfgContainer [2022-11-19 07:54:03,769 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:54:03,770 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:54:03,770 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:54:03,770 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:54:03,771 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:14" (3/4) ... [2022-11-19 07:54:03,774 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:54:03,781 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-19 07:54:03,789 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-19 07:54:03,789 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-19 07:54:03,789 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-19 07:54:03,789 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-19 07:54:03,790 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-19 07:54:03,790 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-19 07:54:03,790 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2022-11-19 07:54:03,791 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2022-11-19 07:54:03,798 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2022-11-19 07:54:03,801 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-19 07:54:03,802 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-19 07:54:03,803 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:54:03,804 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:54:03,835 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) < 3)) && (((!(1 == systemActive) || ((((1 <= aux-isPumpRunning()-aux && 1 == systemActive) && \old(waterLevel) == waterLevel) && waterLevel < 3) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || ((((1 <= aux-isPumpRunning()-aux && 1 == systemActive) && \old(waterLevel) == waterLevel) && waterLevel < 3) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS))) [2022-11-19 07:54:03,837 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) || ((pumpRunning == 0 && waterLevel == 1) && 1 <= switchedOnBeforeTS)) && ((((((2 == waterLevel && \old(waterLevel) == waterLevel) && pumpRunning == 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) < 3))) && (((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) || ((pumpRunning == 0 && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && 1 <= switchedOnBeforeTS)) [2022-11-19 07:54:03,839 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || (((tmp == waterLevel && \old(waterLevel) == waterLevel) && tmp == 2) && pumpRunning == 1)) || !(1 == systemActive)) || (((pumpRunning == 0 && 1 == systemActive) && tmp == waterLevel) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 3)) && ((((((((pumpRunning == 0 && 1 == systemActive) && tmp == waterLevel) && waterLevel == 1) && 1 <= switchedOnBeforeTS) || !(1 == systemActive)) || (((tmp == waterLevel && waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2))) && (((((((((pumpRunning == 0 && 1 == systemActive) && tmp == waterLevel) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && 1 <= switchedOnBeforeTS) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || ((((waterLevel <= 0 && tmp == waterLevel) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS))) [2022-11-19 07:54:03,839 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) [2022-11-19 07:54:03,839 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS))) || !(\old(waterLevel) < 3))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 3)) [2022-11-19 07:54:03,840 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) || ((pumpRunning == 0 && waterLevel == 1) && 1 <= switchedOnBeforeTS)) && ((((((2 == waterLevel && \old(waterLevel) == waterLevel) && pumpRunning == 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) < 3))) && (((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) || ((pumpRunning == 0 && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && 1 <= switchedOnBeforeTS)) [2022-11-19 07:54:03,840 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel < 3)) && ((((!(waterLevel <= 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1)) && ((((!(waterLevel == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1) [2022-11-19 07:54:03,841 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel < 3)) && ((((!(waterLevel <= 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1)) && ((((!(waterLevel == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1) [2022-11-19 07:54:03,849 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && (2 <= waterLevel || tmp == 0))) || !(1 == systemActive)) || !(waterLevel < 3)) && (((!(waterLevel == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS))) && (((!(waterLevel <= 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) [2022-11-19 07:54:03,913 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:54:03,915 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:54:03,916 INFO L158 Benchmark]: Toolchain (without parser) took 50801.45ms. Allocated memory was 121.6MB in the beginning and 484.4MB in the end (delta: 362.8MB). Free memory was 90.7MB in the beginning and 398.0MB in the end (delta: -307.4MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. [2022-11-19 07:54:03,917 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 86.0MB. Free memory was 43.2MB in the beginning and 43.1MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:54:03,917 INFO L158 Benchmark]: CACSL2BoogieTranslator took 573.75ms. Allocated memory is still 121.6MB. Free memory was 90.4MB in the beginning and 89.5MB in the end (delta: 836.8kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:54:03,918 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.70ms. Allocated memory is still 121.6MB. Free memory was 89.5MB in the beginning and 87.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:54:03,918 INFO L158 Benchmark]: Boogie Preprocessor took 55.42ms. Allocated memory is still 121.6MB. Free memory was 87.4MB in the beginning and 85.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:54:03,919 INFO L158 Benchmark]: RCFGBuilder took 772.49ms. Allocated memory is still 121.6MB. Free memory was 85.7MB in the beginning and 93.7MB in the end (delta: -8.1MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. [2022-11-19 07:54:03,920 INFO L158 Benchmark]: TraceAbstraction took 49162.32ms. Allocated memory was 121.6MB in the beginning and 484.4MB in the end (delta: 362.8MB). Free memory was 92.9MB in the beginning and 404.3MB in the end (delta: -311.4MB). Peak memory consumption was 285.4MB. Max. memory is 16.1GB. [2022-11-19 07:54:03,920 INFO L158 Benchmark]: Witness Printer took 145.97ms. Allocated memory is still 484.4MB. Free memory was 404.3MB in the beginning and 398.0MB in the end (delta: 6.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 07:54:03,923 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 86.0MB. Free memory was 43.2MB in the beginning and 43.1MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 573.75ms. Allocated memory is still 121.6MB. Free memory was 90.4MB in the beginning and 89.5MB in the end (delta: 836.8kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.70ms. Allocated memory is still 121.6MB. Free memory was 89.5MB in the beginning and 87.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.42ms. Allocated memory is still 121.6MB. Free memory was 87.4MB in the beginning and 85.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 772.49ms. Allocated memory is still 121.6MB. Free memory was 85.7MB in the beginning and 93.7MB in the end (delta: -8.1MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. * TraceAbstraction took 49162.32ms. Allocated memory was 121.6MB in the beginning and 484.4MB in the end (delta: 362.8MB). Free memory was 92.9MB in the beginning and 404.3MB in the end (delta: -311.4MB). Peak memory consumption was 285.4MB. Max. memory is 16.1GB. * Witness Printer took 145.97ms. Allocated memory is still 484.4MB. Free memory was 404.3MB in the beginning and 398.0MB in the end (delta: 6.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 912]: 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, 69 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 49.0s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3005 SdHoareTripleChecker+Valid, 4.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2982 mSDsluCounter, 2985 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2111 mSDsCounter, 2037 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4511 IncrementalHoareTripleChecker+Invalid, 6548 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2037 mSolverCounterUnsat, 874 mSDtfsCounter, 4511 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1100 GetRequests, 791 SyntacticMatches, 34 SemanticMatches, 275 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7687 ImplicationChecksByTransitivity, 19.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=368occurred in iteration=10, InterpolantAutomatonStates: 141, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 314 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 41 LocationsWithAnnotation, 1400 PreInvPairs, 1588 NumberOfFragments, 2056 HoareAnnotationTreeSize, 1400 FomulaSimplifications, 5681 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 41 FomulaSimplificationsInter, 24906 FormulaSimplificationTreeSizeReductionInter, 5.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 897 NumberOfCodeBlocks, 897 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1144 ConstructedInterpolants, 0 QuantifiedInterpolants, 3365 SizeOfPredicates, 29 NumberOfNonLiveVariables, 1492 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 18 InterpolantComputations, 8 PerfectInterpolantSequences, 464/618 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: 518]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) || ((pumpRunning == 0 && waterLevel == 1) && 1 <= switchedOnBeforeTS)) && ((((((2 == waterLevel && \old(waterLevel) == waterLevel) && pumpRunning == 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) < 3))) && (((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) || ((pumpRunning == 0 && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && 1 <= switchedOnBeforeTS)) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 812]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 695]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 705]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0) && waterLevel < 3) || ((((1 == systemActive && splverifierCounter == 0) && 1 <= switchedOnBeforeTS) && waterLevel < 3) && pumpRunning == 1)) || (((2 == waterLevel && 1 == systemActive) && splverifierCounter == 0) && pumpRunning == 1) - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) || ((pumpRunning == 0 && waterLevel == 1) && 1 <= switchedOnBeforeTS)) && ((((((2 == waterLevel && \old(waterLevel) == waterLevel) && pumpRunning == 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) < 3))) && (((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) || ((pumpRunning == 0 && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && 1 <= switchedOnBeforeTS)) - InvariantResult [Line: 704]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 496]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel < 3)) && ((((!(waterLevel <= 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1)) && ((((!(waterLevel == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1) - InvariantResult [Line: 781]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || (((tmp == waterLevel && \old(waterLevel) == waterLevel) && tmp == 2) && pumpRunning == 1)) || !(1 == systemActive)) || (((pumpRunning == 0 && 1 == systemActive) && tmp == waterLevel) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 3)) && ((((((((pumpRunning == 0 && 1 == systemActive) && tmp == waterLevel) && waterLevel == 1) && 1 <= switchedOnBeforeTS) || !(1 == systemActive)) || (((tmp == waterLevel && waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2))) && (((((((((pumpRunning == 0 && 1 == systemActive) && tmp == waterLevel) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && 1 <= switchedOnBeforeTS) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || ((((waterLevel <= 0 && tmp == waterLevel) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS))) - InvariantResult [Line: 912]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS))) || !(\old(waterLevel) < 3))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 776]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) < 3)) && (((!(1 == systemActive) || ((((1 <= aux-isPumpRunning()-aux && 1 == systemActive) && \old(waterLevel) == waterLevel) && waterLevel < 3) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || ((((1 <= aux-isPumpRunning()-aux && 1 == systemActive) && \old(waterLevel) == waterLevel) && waterLevel < 3) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS))) - InvariantResult [Line: 470]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel < 3)) && ((((!(waterLevel <= 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1)) && ((((!(waterLevel == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1) - InvariantResult [Line: 822]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 894]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 522]: Loop Invariant Derived loop invariant: ((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) - InvariantResult [Line: 894]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 474]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && (2 <= waterLevel || tmp == 0))) || !(1 == systemActive)) || !(waterLevel < 3)) && (((!(waterLevel == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS))) && (((!(waterLevel <= 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) RESULT: Ultimate proved your program to be correct! [2022-11-19 07:54:03,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fc7edae-d13c-4b4f-8c52-6547db5da3d6/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE