./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh --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 02fb1fa00f2030f7900be70496baf2f4c44344da378fa11ef09f1f26dc14ae9d --- 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-2329fc7 [2022-12-14 10:10:07,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:10:07,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:10:07,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:10:07,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:10:07,787 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:10:07,788 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:10:07,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:10:07,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:10:07,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:10:07,791 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:10:07,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:10:07,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:10:07,793 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:10:07,794 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:10:07,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:10:07,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:10:07,795 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:10:07,797 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:10:07,798 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:10:07,799 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:10:07,799 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:10:07,800 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:10:07,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:10:07,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:10:07,803 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:10:07,803 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:10:07,804 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:10:07,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:10:07,805 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:10:07,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:10:07,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:10:07,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:10:07,806 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:10:07,807 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:10:07,807 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:10:07,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:10:07,808 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:10:07,808 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:10:07,808 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:10:07,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:10:07,810 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 10:10:07,828 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:10:07,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:10:07,829 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:10:07,829 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:10:07,829 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:10:07,829 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:10:07,830 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:10:07,830 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:10:07,830 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:10:07,830 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:10:07,830 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:10:07,830 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:10:07,830 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:10:07,830 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:10:07,831 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:10:07,831 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:10:07,831 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:10:07,831 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:10:07,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:10:07,832 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 10:10:07,832 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:10:07,832 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 10:10:07,832 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:10:07,832 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:10:07,832 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:10:07,832 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:10:07,833 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 10:10:07,833 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:10:07,833 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:10:07,833 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:10:07,833 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:10:07,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:10:07,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:10:07,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:10:07,834 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:10:07,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:10:07,834 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:10:07,834 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:10:07,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:10:07,834 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:10:07,834 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:10:07,834 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_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02fb1fa00f2030f7900be70496baf2f4c44344da378fa11ef09f1f26dc14ae9d [2022-12-14 10:10:08,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:10:08,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:10:08,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:10:08,047 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:10:08,047 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:10:08,049 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c [2022-12-14 10:10:10,554 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:10:10,697 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:10:10,697 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c [2022-12-14 10:10:10,704 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/data/d9bcf25a2/0009c3bf02e841759ed106606d3cc9d8/FLAG22cc45bfb [2022-12-14 10:10:10,714 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/data/d9bcf25a2/0009c3bf02e841759ed106606d3cc9d8 [2022-12-14 10:10:10,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:10:10,717 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:10:10,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:10:10,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:10:10,721 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:10:10,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:10:10" (1/1) ... [2022-12-14 10:10:10,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b37b4e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:10:10, skipping insertion in model container [2022-12-14 10:10:10,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:10:10" (1/1) ... [2022-12-14 10:10:10,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:10:10,752 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:10:10,915 WARN L237 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_aa93e90e-b4d3-44c2-b344-4d2198bea833/sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c[17174,17187] [2022-12-14 10:10:10,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:10:10,930 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:10:10,973 WARN L237 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_aa93e90e-b4d3-44c2-b344-4d2198bea833/sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c[17174,17187] [2022-12-14 10:10:10,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:10:10,989 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:10:10,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:10:10 WrapperNode [2022-12-14 10:10:10,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:10:10,990 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:10:10,990 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:10:10,990 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:10:10,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:10:10" (1/1) ... [2022-12-14 10:10:11,004 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:10:10" (1/1) ... [2022-12-14 10:10:11,021 INFO L138 Inliner]: procedures = 56, calls = 101, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 193 [2022-12-14 10:10:11,021 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:10:11,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:10:11,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:10:11,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:10:11,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:10:10" (1/1) ... [2022-12-14 10:10:11,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:10:10" (1/1) ... [2022-12-14 10:10:11,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:10:10" (1/1) ... [2022-12-14 10:10:11,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:10:10" (1/1) ... [2022-12-14 10:10:11,034 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:10:10" (1/1) ... [2022-12-14 10:10:11,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:10:10" (1/1) ... [2022-12-14 10:10:11,038 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:10:10" (1/1) ... [2022-12-14 10:10:11,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:10:10" (1/1) ... [2022-12-14 10:10:11,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:10:11,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:10:11,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:10:11,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:10:11,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:10:10" (1/1) ... [2022-12-14 10:10:11,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:10:11,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:10:11,062 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:10:11,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:10:11,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:10:11,089 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-12-14 10:10:11,089 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-12-14 10:10:11,089 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-12-14 10:10:11,089 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-12-14 10:10:11,089 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-12-14 10:10:11,089 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-12-14 10:10:11,089 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-12-14 10:10:11,090 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-12-14 10:10:11,090 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-12-14 10:10:11,090 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-12-14 10:10:11,090 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-12-14 10:10:11,090 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-12-14 10:10:11,090 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-12-14 10:10:11,090 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-12-14 10:10:11,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:10:11,090 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-12-14 10:10:11,090 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-12-14 10:10:11,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:10:11,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:10:11,154 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:10:11,155 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:10:11,376 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:10:11,469 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:10:11,469 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 10:10:11,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:10:11 BoogieIcfgContainer [2022-12-14 10:10:11,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:10:11,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:10:11,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:10:11,476 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:10:11,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:10:10" (1/3) ... [2022-12-14 10:10:11,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f1ca877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:10:11, skipping insertion in model container [2022-12-14 10:10:11,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:10:10" (2/3) ... [2022-12-14 10:10:11,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f1ca877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:10:11, skipping insertion in model container [2022-12-14 10:10:11,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:10:11" (3/3) ... [2022-12-14 10:10:11,479 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product46.cil.c [2022-12-14 10:10:11,494 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:10:11,494 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 10:10:11,532 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:10:11,537 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;@617f06ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:10:11,537 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 10:10:11,541 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 40 states have (on average 1.4) internal successors, (56), 48 states have internal predecessors, (56), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 10:10:11,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 10:10:11,547 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:10:11,548 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:10:11,548 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:10:11,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:10:11,552 INFO L85 PathProgramCache]: Analyzing trace with hash -710951279, now seen corresponding path program 1 times [2022-12-14 10:10:11,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:10:11,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841146590] [2022-12-14 10:10:11,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:11,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:10:11,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:11,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:10:11,679 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:10:11,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841146590] [2022-12-14 10:10:11,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841146590] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:10:11,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:10:11,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:10:11,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031477954] [2022-12-14 10:10:11,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:10:11,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 10:10:11,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:10:11,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 10:10:11,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:10:11,710 INFO L87 Difference]: Start difference. First operand has 64 states, 40 states have (on average 1.4) internal successors, (56), 48 states have internal predecessors, (56), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:10:11,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:10:11,768 INFO L93 Difference]: Finished difference Result 126 states and 169 transitions. [2022-12-14 10:10:11,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 10:10:11,771 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-12-14 10:10:11,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:10:11,779 INFO L225 Difference]: With dead ends: 126 [2022-12-14 10:10:11,779 INFO L226 Difference]: Without dead ends: 59 [2022-12-14 10:10:11,782 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 [2022-12-14 10:10:11,785 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:10:11,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:10:11,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-12-14 10:10:11,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-12-14 10:10:11,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 44 states have internal predecessors, (48), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 10:10:11,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 75 transitions. [2022-12-14 10:10:11,816 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 75 transitions. Word has length 17 [2022-12-14 10:10:11,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:10:11,816 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 75 transitions. [2022-12-14 10:10:11,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:10:11,817 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 75 transitions. [2022-12-14 10:10:11,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 10:10:11,818 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:10:11,818 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:10:11,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:10:11,818 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:10:11,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:10:11,819 INFO L85 PathProgramCache]: Analyzing trace with hash 974207459, now seen corresponding path program 1 times [2022-12-14 10:10:11,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:10:11,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10492924] [2022-12-14 10:10:11,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:11,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:10:11,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:11,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:10:11,887 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:10:11,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10492924] [2022-12-14 10:10:11,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10492924] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:10:11,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:10:11,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:10:11,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879907341] [2022-12-14 10:10:11,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:10:11,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:10:11,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:10:11,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:10:11,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:10:11,890 INFO L87 Difference]: Start difference. First operand 59 states and 75 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:10:11,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:10:11,928 INFO L93 Difference]: Finished difference Result 95 states and 121 transitions. [2022-12-14 10:10:11,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:10:11,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-12-14 10:10:11,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:10:11,930 INFO L225 Difference]: With dead ends: 95 [2022-12-14 10:10:11,930 INFO L226 Difference]: Without dead ends: 51 [2022-12-14 10:10:11,931 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 [2022-12-14 10:10:11,933 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 7 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:10:11,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 91 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:10:11,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-12-14 10:10:11,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-12-14 10:10:11,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 32 states have (on average 1.3125) internal successors, (42), 39 states have internal predecessors, (42), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 10:10:11,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 64 transitions. [2022-12-14 10:10:11,942 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 64 transitions. Word has length 18 [2022-12-14 10:10:11,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:10:11,942 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 64 transitions. [2022-12-14 10:10:11,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:10:11,943 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 64 transitions. [2022-12-14 10:10:11,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 10:10:11,944 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:10:11,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:10:11,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 10:10:11,944 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:10:11,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:10:11,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1831247339, now seen corresponding path program 1 times [2022-12-14 10:10:11,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:10:11,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628949871] [2022-12-14 10:10:11,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:11,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:10:11,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:12,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:10:12,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:10:12,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628949871] [2022-12-14 10:10:12,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628949871] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:10:12,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:10:12,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 10:10:12,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738487012] [2022-12-14 10:10:12,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:10:12,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:10:12,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:10:12,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:10:12,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:10:12,055 INFO L87 Difference]: Start difference. First operand 51 states and 64 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:10:12,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:10:12,191 INFO L93 Difference]: Finished difference Result 146 states and 186 transitions. [2022-12-14 10:10:12,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 10:10:12,192 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-12-14 10:10:12,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:10:12,193 INFO L225 Difference]: With dead ends: 146 [2022-12-14 10:10:12,193 INFO L226 Difference]: Without dead ends: 97 [2022-12-14 10:10:12,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-14 10:10:12,194 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 44 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:10:12,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 258 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:10:12,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-12-14 10:10:12,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 93. [2022-12-14 10:10:12,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 58 states have (on average 1.293103448275862) internal successors, (75), 70 states have internal predecessors, (75), 21 states have call successors, (21), 13 states have call predecessors, (21), 13 states have return successors, (21), 17 states have call predecessors, (21), 21 states have call successors, (21) [2022-12-14 10:10:12,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 117 transitions. [2022-12-14 10:10:12,205 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 117 transitions. Word has length 20 [2022-12-14 10:10:12,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:10:12,205 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 117 transitions. [2022-12-14 10:10:12,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:10:12,206 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 117 transitions. [2022-12-14 10:10:12,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 10:10:12,206 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:10:12,206 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:10:12,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 10:10:12,207 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:10:12,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:10:12,207 INFO L85 PathProgramCache]: Analyzing trace with hash -899885686, now seen corresponding path program 1 times [2022-12-14 10:10:12,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:10:12,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062419655] [2022-12-14 10:10:12,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:12,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:10:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:12,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:10:12,264 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:10:12,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062419655] [2022-12-14 10:10:12,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062419655] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:10:12,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:10:12,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:10:12,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205940698] [2022-12-14 10:10:12,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:10:12,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:10:12,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:10:12,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:10:12,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:10:12,266 INFO L87 Difference]: Start difference. First operand 93 states and 117 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 10:10:12,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:10:12,318 INFO L93 Difference]: Finished difference Result 142 states and 181 transitions. [2022-12-14 10:10:12,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:10:12,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2022-12-14 10:10:12,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:10:12,320 INFO L225 Difference]: With dead ends: 142 [2022-12-14 10:10:12,320 INFO L226 Difference]: Without dead ends: 140 [2022-12-14 10:10:12,320 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 [2022-12-14 10:10:12,321 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 43 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:10:12,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 107 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:10:12,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-12-14 10:10:12,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2022-12-14 10:10:12,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 87 states have (on average 1.2988505747126438) internal successors, (113), 105 states have internal predecessors, (113), 32 states have call successors, (32), 20 states have call predecessors, (32), 20 states have return successors, (34), 26 states have call predecessors, (34), 32 states have call successors, (34) [2022-12-14 10:10:12,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 179 transitions. [2022-12-14 10:10:12,334 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 179 transitions. Word has length 23 [2022-12-14 10:10:12,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:10:12,335 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 179 transitions. [2022-12-14 10:10:12,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 10:10:12,335 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 179 transitions. [2022-12-14 10:10:12,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-12-14 10:10:12,336 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:10:12,336 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:10:12,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 10:10:12,337 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:10:12,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:10:12,337 INFO L85 PathProgramCache]: Analyzing trace with hash -2115648490, now seen corresponding path program 1 times [2022-12-14 10:10:12,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:10:12,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70660265] [2022-12-14 10:10:12,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:12,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:10:12,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:12,544 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 10:10:12,544 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:10:12,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70660265] [2022-12-14 10:10:12,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70660265] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:10:12,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601290929] [2022-12-14 10:10:12,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:12,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:10:12,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:10:12,546 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:10:12,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 10:10:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:12,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-14 10:10:12,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:10:12,705 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 10:10:12,705 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:10:12,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601290929] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:10:12,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 10:10:12,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 14 [2022-12-14 10:10:12,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010845224] [2022-12-14 10:10:12,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:10:12,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:10:12,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:10:12,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:10:12,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-12-14 10:10:12,708 INFO L87 Difference]: Start difference. First operand 140 states and 179 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 10:10:12,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:10:12,773 INFO L93 Difference]: Finished difference Result 278 states and 361 transitions. [2022-12-14 10:10:12,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:10:12,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2022-12-14 10:10:12,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:10:12,775 INFO L225 Difference]: With dead ends: 278 [2022-12-14 10:10:12,775 INFO L226 Difference]: Without dead ends: 140 [2022-12-14 10:10:12,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-12-14 10:10:12,777 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 57 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:10:12,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 65 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:10:12,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-12-14 10:10:12,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2022-12-14 10:10:12,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 87 states have (on average 1.264367816091954) internal successors, (110), 105 states have internal predecessors, (110), 32 states have call successors, (32), 20 states have call predecessors, (32), 20 states have return successors, (34), 26 states have call predecessors, (34), 32 states have call successors, (34) [2022-12-14 10:10:12,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 176 transitions. [2022-12-14 10:10:12,803 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 176 transitions. Word has length 42 [2022-12-14 10:10:12,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:10:12,803 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 176 transitions. [2022-12-14 10:10:12,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 10:10:12,804 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 176 transitions. [2022-12-14 10:10:12,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-14 10:10:12,806 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:10:12,806 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:10:12,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 10:10:13,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:10:13,009 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:10:13,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:10:13,011 INFO L85 PathProgramCache]: Analyzing trace with hash -435771722, now seen corresponding path program 1 times [2022-12-14 10:10:13,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:10:13,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726356070] [2022-12-14 10:10:13,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:13,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:10:13,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:13,211 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 10:10:13,211 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:10:13,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726356070] [2022-12-14 10:10:13,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726356070] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:10:13,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987900385] [2022-12-14 10:10:13,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:13,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:10:13,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:10:13,213 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:10:13,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 10:10:13,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:13,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 10:10:13,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:10:13,314 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 10:10:13,314 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:10:13,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987900385] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:10:13,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 10:10:13,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 7 [2022-12-14 10:10:13,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367235953] [2022-12-14 10:10:13,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:10:13,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:10:13,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:10:13,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:10:13,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:10:13,316 INFO L87 Difference]: Start difference. First operand 140 states and 176 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2022-12-14 10:10:13,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:10:13,504 INFO L93 Difference]: Finished difference Result 497 states and 646 transitions. [2022-12-14 10:10:13,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:10:13,504 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 62 [2022-12-14 10:10:13,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:10:13,507 INFO L225 Difference]: With dead ends: 497 [2022-12-14 10:10:13,508 INFO L226 Difference]: Without dead ends: 359 [2022-12-14 10:10:13,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:10:13,509 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 122 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:10:13,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 196 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:10:13,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2022-12-14 10:10:13,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 353. [2022-12-14 10:10:13,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 235 states have (on average 1.2) internal successors, (282), 254 states have internal predecessors, (282), 60 states have call successors, (60), 51 states have call predecessors, (60), 57 states have return successors, (94), 63 states have call predecessors, (94), 60 states have call successors, (94) [2022-12-14 10:10:13,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 436 transitions. [2022-12-14 10:10:13,543 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 436 transitions. Word has length 62 [2022-12-14 10:10:13,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:10:13,543 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 436 transitions. [2022-12-14 10:10:13,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2022-12-14 10:10:13,543 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 436 transitions. [2022-12-14 10:10:13,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-14 10:10:13,545 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:10:13,545 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:10:13,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 10:10:13,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:10:13,747 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:10:13,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:10:13,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1374356811, now seen corresponding path program 1 times [2022-12-14 10:10:13,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:10:13,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776298509] [2022-12-14 10:10:13,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:13,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:10:13,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:14,077 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 10:10:14,078 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:10:14,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776298509] [2022-12-14 10:10:14,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776298509] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:10:14,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067051601] [2022-12-14 10:10:14,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:14,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:10:14,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:10:14,080 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:10:14,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 10:10:14,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:14,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-14 10:10:14,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:10:14,183 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 10:10:14,183 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:10:14,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067051601] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:10:14,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 10:10:14,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-12-14 10:10:14,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342503621] [2022-12-14 10:10:14,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:10:14,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:10:14,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:10:14,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:10:14,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-14 10:10:14,185 INFO L87 Difference]: Start difference. First operand 353 states and 436 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 10:10:14,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:10:14,293 INFO L93 Difference]: Finished difference Result 572 states and 722 transitions. [2022-12-14 10:10:14,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:10:14,294 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 69 [2022-12-14 10:10:14,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:10:14,296 INFO L225 Difference]: With dead ends: 572 [2022-12-14 10:10:14,296 INFO L226 Difference]: Without dead ends: 304 [2022-12-14 10:10:14,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-12-14 10:10:14,298 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 40 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:10:14,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 158 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:10:14,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-12-14 10:10:14,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 282. [2022-12-14 10:10:14,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 187 states have (on average 1.160427807486631) internal successors, (217), 202 states have internal predecessors, (217), 48 states have call successors, (48), 41 states have call predecessors, (48), 46 states have return successors, (66), 50 states have call predecessors, (66), 48 states have call successors, (66) [2022-12-14 10:10:14,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 331 transitions. [2022-12-14 10:10:14,332 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 331 transitions. Word has length 69 [2022-12-14 10:10:14,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:10:14,333 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 331 transitions. [2022-12-14 10:10:14,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 10:10:14,333 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 331 transitions. [2022-12-14 10:10:14,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-14 10:10:14,334 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:10:14,334 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:10:14,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 10:10:14,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 10:10:14,535 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:10:14,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:10:14,536 INFO L85 PathProgramCache]: Analyzing trace with hash 136361987, now seen corresponding path program 1 times [2022-12-14 10:10:14,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:10:14,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816811014] [2022-12-14 10:10:14,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:14,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:10:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:14,871 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 10:10:14,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:10:14,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816811014] [2022-12-14 10:10:14,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816811014] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:10:14,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450485203] [2022-12-14 10:10:14,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:14,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:10:14,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:10:14,872 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:10:14,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 10:10:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:14,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 33 conjunts are in the unsatisfiable core [2022-12-14 10:10:14,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:10:15,197 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 10:10:15,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:10:15,624 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 10:10:15,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450485203] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:10:15,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1677590662] [2022-12-14 10:10:15,641 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-12-14 10:10:15,642 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:10:15,644 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:10:15,648 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:10:15,649 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:10:17,241 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 32 for LOIs [2022-12-14 10:10:17,418 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 27 for LOIs [2022-12-14 10:10:17,547 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 51 for LOIs [2022-12-14 10:10:17,601 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 25 for LOIs [2022-12-14 10:10:17,602 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 46 for LOIs [2022-12-14 10:10:17,607 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:10:21,486 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5642#(and (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp___0~1#1| 0)) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification2_spec__2_~tmp___0~1#1|) (<= 0 |old(~pumpRunning~0)|) (<= ~pumpRunning~0 1) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~8#1| ~methaneLevelCritical~0) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp~8#1| 0)) (= ~head~0.offset 0) (<= 1 ~systemActive~0) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~10#1|) (<= |#NULL.offset| 0) (<= |timeShift___utac_acc__Specification2_spec__2_~tmp~8#1| 1) (<= 0 ~methAndRunningLastTime~0) (<= 0 |old(~methAndRunningLastTime~0)|) (<= 0 ~head~0.base) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~10#1|) (<= 0 ~pumpRunning~0) (<= ~head~0.base 0) (<= 0 |timeShift___utac_acc__Specification2_spec__2_~tmp~8#1|) (<= 0 |#NULL.offset|) (not (= ~methAndRunningLastTime~0 0)) (<= 0 |#StackHeapBarrier|) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-12-14 10:10:21,487 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 10:10:21,487 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:10:21,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 12] total 32 [2022-12-14 10:10:21,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264406190] [2022-12-14 10:10:21,487 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 10:10:21,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-12-14 10:10:21,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:10:21,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-12-14 10:10:21,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=381, Invalid=3909, Unknown=0, NotChecked=0, Total=4290 [2022-12-14 10:10:21,491 INFO L87 Difference]: Start difference. First operand 282 states and 331 transitions. Second operand has 32 states, 23 states have (on average 4.217391304347826) internal successors, (97), 23 states have internal predecessors, (97), 9 states have call successors, (21), 6 states have call predecessors, (21), 14 states have return successors, (22), 15 states have call predecessors, (22), 9 states have call successors, (22) [2022-12-14 10:10:25,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:10:25,059 INFO L93 Difference]: Finished difference Result 1017 states and 1352 transitions. [2022-12-14 10:10:25,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-12-14 10:10:25,059 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 23 states have (on average 4.217391304347826) internal successors, (97), 23 states have internal predecessors, (97), 9 states have call successors, (21), 6 states have call predecessors, (21), 14 states have return successors, (22), 15 states have call predecessors, (22), 9 states have call successors, (22) Word has length 69 [2022-12-14 10:10:25,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:10:25,062 INFO L225 Difference]: With dead ends: 1017 [2022-12-14 10:10:25,062 INFO L226 Difference]: Without dead ends: 702 [2022-12-14 10:10:25,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7114 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=1811, Invalid=18495, Unknown=0, NotChecked=0, Total=20306 [2022-12-14 10:10:25,066 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 803 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 3927 mSolverCounterSat, 745 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 4672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 745 IncrementalHoareTripleChecker+Valid, 3927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:10:25,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 623 Invalid, 4672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [745 Valid, 3927 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 10:10:25,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2022-12-14 10:10:25,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 502. [2022-12-14 10:10:25,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 327 states have (on average 1.1345565749235473) internal successors, (371), 353 states have internal predecessors, (371), 89 states have call successors, (89), 75 states have call predecessors, (89), 85 states have return successors, (113), 91 states have call predecessors, (113), 89 states have call successors, (113) [2022-12-14 10:10:25,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 573 transitions. [2022-12-14 10:10:25,105 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 573 transitions. Word has length 69 [2022-12-14 10:10:25,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:10:25,106 INFO L495 AbstractCegarLoop]: Abstraction has 502 states and 573 transitions. [2022-12-14 10:10:25,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 23 states have (on average 4.217391304347826) internal successors, (97), 23 states have internal predecessors, (97), 9 states have call successors, (21), 6 states have call predecessors, (21), 14 states have return successors, (22), 15 states have call predecessors, (22), 9 states have call successors, (22) [2022-12-14 10:10:25,106 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 573 transitions. [2022-12-14 10:10:25,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:10:25,107 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:10:25,107 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 10:10:25,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 10:10:25,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 10:10:25,308 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:10:25,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:10:25,308 INFO L85 PathProgramCache]: Analyzing trace with hash 2012027473, now seen corresponding path program 1 times [2022-12-14 10:10:25,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:10:25,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239688330] [2022-12-14 10:10:25,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:25,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:10:25,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:25,541 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 47 proven. 7 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-12-14 10:10:25,541 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:10:25,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239688330] [2022-12-14 10:10:25,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239688330] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:10:25,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082955892] [2022-12-14 10:10:25,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:25,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:10:25,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:10:25,542 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:10:25,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 10:10:25,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:25,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-14 10:10:25,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:10:25,741 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 69 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-14 10:10:25,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:10:26,004 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 47 proven. 7 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-12-14 10:10:26,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082955892] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:10:26,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1040274983] [2022-12-14 10:10:26,007 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2022-12-14 10:10:26,008 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:10:26,008 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:10:26,008 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:10:26,008 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:10:27,866 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 47 for LOIs [2022-12-14 10:10:28,052 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 40 for LOIs [2022-12-14 10:10:28,191 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 51 for LOIs [2022-12-14 10:10:28,249 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 23 for LOIs [2022-12-14 10:10:28,251 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 26 for LOIs [2022-12-14 10:10:28,253 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 26 for LOIs [2022-12-14 10:10:28,255 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:10:34,653 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8859#(and (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp___0~1#1| 0)) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification2_spec__2_~tmp___0~1#1|) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~8#1| ~methaneLevelCritical~0) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp~8#1| 0)) (= ~head~0.offset 0) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~10#1|) (<= |timeShift_isPumpRunning_#res#1| 2147483647) (= 1 ~systemActive~0) (<= |timeShift___utac_acc__Specification2_spec__2_~tmp~8#1| 1) (<= 0 ~methAndRunningLastTime~0) (<= 0 |old(~methAndRunningLastTime~0)|) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~10#1|) (= ~head~0.base 0) (<= 0 |timeShift___utac_acc__Specification2_spec__2_~tmp~8#1|) (= |#NULL.offset| 0) (<= 0 (+ |timeShift_isPumpRunning_#res#1| 2147483648)) (not (= ~methAndRunningLastTime~0 0)) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-12-14 10:10:34,654 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 10:10:34,654 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:10:34,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 28 [2022-12-14 10:10:34,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578856510] [2022-12-14 10:10:34,654 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 10:10:34,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-12-14 10:10:34,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:10:34,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-12-14 10:10:34,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=3487, Unknown=0, NotChecked=0, Total=3782 [2022-12-14 10:10:34,658 INFO L87 Difference]: Start difference. First operand 502 states and 573 transitions. Second operand has 28 states, 19 states have (on average 5.315789473684211) internal successors, (101), 20 states have internal predecessors, (101), 5 states have call successors, (29), 6 states have call predecessors, (29), 12 states have return successors, (32), 11 states have call predecessors, (32), 5 states have call successors, (32) [2022-12-14 10:10:35,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:10:35,321 INFO L93 Difference]: Finished difference Result 1174 states and 1352 transitions. [2022-12-14 10:10:35,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-14 10:10:35,321 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 5.315789473684211) internal successors, (101), 20 states have internal predecessors, (101), 5 states have call successors, (29), 6 states have call predecessors, (29), 12 states have return successors, (32), 11 states have call predecessors, (32), 5 states have call successors, (32) Word has length 113 [2022-12-14 10:10:35,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:10:35,323 INFO L225 Difference]: With dead ends: 1174 [2022-12-14 10:10:35,323 INFO L226 Difference]: Without dead ends: 713 [2022-12-14 10:10:35,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 279 SyntacticMatches, 19 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2675 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=482, Invalid=5524, Unknown=0, NotChecked=0, Total=6006 [2022-12-14 10:10:35,325 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 148 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 1561 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 1686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:10:35,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 186 Invalid, 1686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1561 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 10:10:35,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2022-12-14 10:10:35,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 710. [2022-12-14 10:10:35,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 460 states have (on average 1.1217391304347826) internal successors, (516), 492 states have internal predecessors, (516), 128 states have call successors, (128), 111 states have call predecessors, (128), 121 states have return successors, (155), 129 states have call predecessors, (155), 128 states have call successors, (155) [2022-12-14 10:10:35,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 799 transitions. [2022-12-14 10:10:35,374 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 799 transitions. Word has length 113 [2022-12-14 10:10:35,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:10:35,374 INFO L495 AbstractCegarLoop]: Abstraction has 710 states and 799 transitions. [2022-12-14 10:10:35,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 5.315789473684211) internal successors, (101), 20 states have internal predecessors, (101), 5 states have call successors, (29), 6 states have call predecessors, (29), 12 states have return successors, (32), 11 states have call predecessors, (32), 5 states have call successors, (32) [2022-12-14 10:10:35,374 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 799 transitions. [2022-12-14 10:10:35,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-12-14 10:10:35,376 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:10:35,376 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 2, 2, 1, 1, 1, 1, 1] [2022-12-14 10:10:35,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 10:10:35,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:10:35,578 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:10:35,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:10:35,579 INFO L85 PathProgramCache]: Analyzing trace with hash -205718373, now seen corresponding path program 2 times [2022-12-14 10:10:35,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:10:35,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281987203] [2022-12-14 10:10:35,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:35,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:10:35,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:35,914 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 63 proven. 52 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-12-14 10:10:35,915 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:10:35,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281987203] [2022-12-14 10:10:35,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281987203] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:10:35,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211892164] [2022-12-14 10:10:35,915 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 10:10:35,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:10:35,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:10:35,916 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:10:35,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 10:10:35,986 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-14 10:10:35,986 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 10:10:35,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-14 10:10:35,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:10:36,085 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-12-14 10:10:36,085 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:10:36,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211892164] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:10:36,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 10:10:36,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 20 [2022-12-14 10:10:36,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061107321] [2022-12-14 10:10:36,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:10:36,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 10:10:36,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:10:36,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 10:10:36,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-12-14 10:10:36,087 INFO L87 Difference]: Start difference. First operand 710 states and 799 transitions. Second operand has 11 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (15), 3 states have call predecessors, (15), 6 states have return successors, (16), 6 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-14 10:10:36,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:10:36,387 INFO L93 Difference]: Finished difference Result 1626 states and 1849 transitions. [2022-12-14 10:10:36,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-14 10:10:36,388 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (15), 3 states have call predecessors, (15), 6 states have return successors, (16), 6 states have call predecessors, (16), 3 states have call successors, (16) Word has length 149 [2022-12-14 10:10:36,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:10:36,389 INFO L225 Difference]: With dead ends: 1626 [2022-12-14 10:10:36,389 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 10:10:36,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=617, Unknown=0, NotChecked=0, Total=702 [2022-12-14 10:10:36,393 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 38 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:10:36,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 669 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 10:10:36,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 10:10:36,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 10:10:36,394 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) [2022-12-14 10:10:36,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 10:10:36,394 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 149 [2022-12-14 10:10:36,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:10:36,394 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 10:10:36,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (15), 3 states have call predecessors, (15), 6 states have return successors, (16), 6 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-14 10:10:36,395 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 10:10:36,395 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 10:10:36,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 10:10:36,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 10:10:36,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 10:10:36,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 10:10:39,433 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 688 694) no Hoare annotation was computed. [2022-12-14 10:10:39,433 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 688 694) the Hoare annotation is: true [2022-12-14 10:10:39,433 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 487 498) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not (= |old(~methaneLevelCritical~0)| 0)) .cse0 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) .cse1) (or (not (= ~pumpRunning~0 0)) .cse0 (= ~methaneLevelCritical~0 1) (not (= |old(~methaneLevelCritical~0)| 1)) .cse1))) [2022-12-14 10:10:39,433 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 487 498) no Hoare annotation was computed. [2022-12-14 10:10:39,433 INFO L899 garLoopResultBuilder]: For program point L894(lines 894 904) no Hoare annotation was computed. [2022-12-14 10:10:39,433 INFO L895 garLoopResultBuilder]: At program point L890(lines 890 907) the Hoare annotation is: (let ((.cse8 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse2 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~8#1| ~methaneLevelCritical~0)) (.cse5 (= |old(~pumpRunning~0)| 0))) (let ((.cse3 (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0)) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse9 (not .cse5)) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (not (= 1 ~systemActive~0))) (.cse10 (and .cse8 .cse1 .cse2)) (.cse7 (not (= ~methaneLevelCritical~0 1)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2 .cse3) .cse4 .cse5 .cse6) (or .cse4 .cse5 .cse7 (and .cse8 .cse2 .cse3)) (or .cse9 .cse0 .cse4 .cse6 .cse10 (and .cse1 .cse2 (= ~pumpRunning~0 1))) (or .cse9 .cse0 .cse4 .cse10 .cse7)))) [2022-12-14 10:10:39,434 INFO L895 garLoopResultBuilder]: At program point L890-1(lines 882 910) the Hoare annotation is: (let ((.cse5 (= 1 ~systemActive~0)) (.cse9 (= |old(~pumpRunning~0)| 0))) (let ((.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse8 (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0)) (.cse0 (not .cse9)) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (not .cse5)) (.cse10 (not (= ~methaneLevelCritical~0 1))) (.cse7 (= ~pumpRunning~0 0)) (.cse3 (= ~methAndRunningLastTime~0 0)) (.cse4 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~8#1| ~methaneLevelCritical~0))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4 .cse5 (= ~pumpRunning~0 1)) .cse6 (and .cse7 .cse3 .cse4)) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~8#1| 0) .cse8) .cse1 .cse2 .cse9 .cse6) (or .cse2 (and .cse7 .cse3 .cse4 .cse8) .cse9 .cse10) (or .cse0 .cse1 .cse2 .cse10 (and .cse7 .cse3 .cse4 .cse5 (= |timeShift___utac_acc__Specification2_spec__2_~tmp___0~1#1| 0)))))) [2022-12-14 10:10:39,434 INFO L899 garLoopResultBuilder]: For program point L895(lines 895 901) no Hoare annotation was computed. [2022-12-14 10:10:39,434 INFO L899 garLoopResultBuilder]: For program point L668-1(lines 667 686) no Hoare annotation was computed. [2022-12-14 10:10:39,434 INFO L895 garLoopResultBuilder]: At program point L730(lines 730 738) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse3 (= ~methAndRunningLastTime~0 0)) (.cse4 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse6 (not (= ~methaneLevelCritical~0 1))) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) (and .cse2 .cse3 .cse4 .cse5)) (or .cse0 .cse1 .cse6 (and .cse2 .cse3 .cse4)) (or .cse1 (= |old(~pumpRunning~0)| 0) .cse6 (and .cse2 .cse5)))) [2022-12-14 10:10:39,434 INFO L899 garLoopResultBuilder]: For program point L726(lines 726 743) no Hoare annotation was computed. [2022-12-14 10:10:39,434 INFO L895 garLoopResultBuilder]: At program point L888(line 888) the Hoare annotation is: (let ((.cse5 (= ~methAndRunningLastTime~0 0)) (.cse7 (= ~pumpRunning~0 0)) (.cse8 (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0))) (let ((.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse4 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse5 (not .cse7) .cse8)) (.cse2 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse9 (not (= ~methaneLevelCritical~0 1))) (.cse6 (and .cse7 .cse5))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 (and .cse5 (= ~pumpRunning~0 1)) .cse3 .cse4 .cse6) (or .cse1 .cse2 (and .cse7 .cse8) .cse9) (or .cse0 .cse1 .cse9 .cse6)))) [2022-12-14 10:10:39,434 INFO L899 garLoopResultBuilder]: For program point L888-1(line 888) no Hoare annotation was computed. [2022-12-14 10:10:39,434 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 664 687) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (and .cse3 (= ~methAndRunningLastTime~0 0))) (.cse4 (not (= ~methaneLevelCritical~0 1)))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or .cse3 .cse1 (= |old(~pumpRunning~0)| 0) .cse4) (or .cse0 .cse1 .cse2 .cse4)))) [2022-12-14 10:10:39,434 INFO L895 garLoopResultBuilder]: At program point L868(line 868) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 1)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 .cse2) (or .cse1 (= |old(~pumpRunning~0)| 0) .cse2))) [2022-12-14 10:10:39,434 INFO L895 garLoopResultBuilder]: At program point L736(line 736) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 1)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~methAndRunningLastTime~0 0) (not (= ~pumpRunning~0 0)) (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0))) (or .cse0 .cse1 .cse2) (or .cse1 (= |old(~pumpRunning~0)| 0) .cse2))) [2022-12-14 10:10:39,435 INFO L895 garLoopResultBuilder]: At program point L728(line 728) the Hoare annotation is: (let ((.cse1 (= ~methAndRunningLastTime~0 0)) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (not (= 1 ~systemActive~0))) (.cse5 (= |old(~pumpRunning~0)| 0)) (.cse3 (not (= ~methaneLevelCritical~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 (not (= ~methaneLevelCritical~0 0)) (and .cse4 .cse1 (not (= ~pumpRunning~0 0)))) (or (not .cse5) .cse0 .cse2 .cse3) (or .cse4 .cse2 .cse5 .cse3))) [2022-12-14 10:10:39,435 INFO L899 garLoopResultBuilder]: For program point L728-1(line 728) no Hoare annotation was computed. [2022-12-14 10:10:39,435 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 664 687) no Hoare annotation was computed. [2022-12-14 10:10:39,435 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 868) no Hoare annotation was computed. [2022-12-14 10:10:39,435 INFO L895 garLoopResultBuilder]: At program point L741(line 741) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 1)))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4)) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3 .cse4)) (or .cse1 (= |old(~pumpRunning~0)| 0) .cse2))) [2022-12-14 10:10:39,435 INFO L895 garLoopResultBuilder]: At program point L741-1(lines 722 746) the Hoare annotation is: (let ((.cse5 (= ~methAndRunningLastTime~0 0)) (.cse7 (= ~pumpRunning~0 0)) (.cse8 (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0))) (let ((.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse4 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse5 (not .cse7) .cse8)) (.cse2 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse9 (not (= ~methaneLevelCritical~0 1))) (.cse6 (and .cse7 .cse5))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 (and .cse5 (= ~pumpRunning~0 1)) .cse3 .cse4 .cse6) (or .cse1 .cse2 (and .cse7 .cse8) .cse9) (or .cse0 .cse1 .cse9 .cse6)))) [2022-12-14 10:10:39,435 INFO L899 garLoopResultBuilder]: For program point L675-1(lines 675 681) no Hoare annotation was computed. [2022-12-14 10:10:39,435 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 557 586) no Hoare annotation was computed. [2022-12-14 10:10:39,435 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 575) no Hoare annotation was computed. [2022-12-14 10:10:39,435 INFO L902 garLoopResultBuilder]: At program point L571-1(lines 571 575) the Hoare annotation is: true [2022-12-14 10:10:39,435 INFO L902 garLoopResultBuilder]: At program point L567-2(lines 567 581) the Hoare annotation is: true [2022-12-14 10:10:39,435 INFO L902 garLoopResultBuilder]: At program point L563(line 563) the Hoare annotation is: true [2022-12-14 10:10:39,435 INFO L899 garLoopResultBuilder]: For program point L563-1(line 563) no Hoare annotation was computed. [2022-12-14 10:10:39,435 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 557 586) the Hoare annotation is: true [2022-12-14 10:10:39,436 INFO L902 garLoopResultBuilder]: At program point L582(lines 557 586) the Hoare annotation is: true [2022-12-14 10:10:39,436 INFO L899 garLoopResultBuilder]: For program point L578(line 578) no Hoare annotation was computed. [2022-12-14 10:10:39,436 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 499 507) the Hoare annotation is: true [2022-12-14 10:10:39,436 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 499 507) no Hoare annotation was computed. [2022-12-14 10:10:39,436 INFO L902 garLoopResultBuilder]: At program point L642-2(lines 642 649) the Hoare annotation is: true [2022-12-14 10:10:39,436 INFO L895 garLoopResultBuilder]: At program point L960-2(lines 952 965) the Hoare annotation is: (let ((.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse4 (= ~methaneLevelCritical~0 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~3#1| 1))) (or (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse4 .cse2 .cse3) (and (not (= ~pumpRunning~0 0)) .cse1 .cse4 .cse2 .cse3))) [2022-12-14 10:10:39,436 INFO L899 garLoopResultBuilder]: For program point L923(lines 922 969) no Hoare annotation was computed. [2022-12-14 10:10:39,436 INFO L895 garLoopResultBuilder]: At program point L944(line 944) the Hoare annotation is: (let ((.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~3#1| 1))) (or (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 (= ~methaneLevelCritical~0 1) .cse2 .cse3))) [2022-12-14 10:10:39,436 INFO L902 garLoopResultBuilder]: At program point L973(lines 912 977) the Hoare annotation is: true [2022-12-14 10:10:39,436 INFO L899 garLoopResultBuilder]: For program point L932(lines 932 938) no Hoare annotation was computed. [2022-12-14 10:10:39,436 INFO L899 garLoopResultBuilder]: For program point L932-1(lines 932 938) no Hoare annotation was computed. [2022-12-14 10:10:39,436 INFO L895 garLoopResultBuilder]: At program point L970(lines 921 971) the Hoare annotation is: false [2022-12-14 10:10:39,436 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 10:10:39,436 INFO L899 garLoopResultBuilder]: For program point L942(lines 942 948) no Hoare annotation was computed. [2022-12-14 10:10:39,436 INFO L895 garLoopResultBuilder]: At program point L942-1(lines 942 948) the Hoare annotation is: (let ((.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse4 (= ~methaneLevelCritical~0 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~3#1| 1))) (or (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse4 .cse2 .cse3) (and (not (= ~pumpRunning~0 0)) .cse1 .cse4 .cse2 .cse3))) [2022-12-14 10:10:39,436 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2022-12-14 10:10:39,437 INFO L895 garLoopResultBuilder]: At program point L967(lines 922 969) the Hoare annotation is: (let ((.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~3#1| 1))) (or (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 (= ~methaneLevelCritical~0 1) .cse2 .cse3))) [2022-12-14 10:10:39,437 INFO L895 garLoopResultBuilder]: At program point L934(line 934) the Hoare annotation is: (let ((.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~3#1| 1))) (or (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 (= ~methaneLevelCritical~0 1) .cse2 .cse3))) [2022-12-14 10:10:39,437 INFO L895 garLoopResultBuilder]: At program point L642(lines 642 649) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_main_~tmp~3#1| 1)) [2022-12-14 10:10:39,437 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 475 486) no Hoare annotation was computed. [2022-12-14 10:10:39,437 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 475 486) the Hoare annotation is: true [2022-12-14 10:10:39,437 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 712) no Hoare annotation was computed. [2022-12-14 10:10:39,437 INFO L895 garLoopResultBuilder]: At program point L700(lines 700 717) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (= ~methaneLevelCritical~0 1)) .cse1) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1))) [2022-12-14 10:10:39,437 INFO L895 garLoopResultBuilder]: At program point L760(line 760) the Hoare annotation is: (let ((.cse1 (and (= ~pumpRunning~0 0) (or (= |processEnvironment__wrappee__methaneQuery_~tmp~4#1| 0) (= |processEnvironment__wrappee__methaneQuery_~tmp~4#1| 1)))) (.cse2 (not (= 1 ~systemActive~0))) (.cse0 (= |old(~pumpRunning~0)| 0)) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not .cse0) .cse1 .cse2 (not (= ~methaneLevelCritical~0 1)) .cse3) (or .cse1 .cse2 .cse4 .cse3) (or .cse2 .cse0 .cse4 .cse3))) [2022-12-14 10:10:39,437 INFO L895 garLoopResultBuilder]: At program point L760-1(line 760) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse4 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (and (= ~pumpRunning~0 0) (or (= |processEnvironment__wrappee__methaneQuery_~tmp~4#1| 0) (= |processEnvironment__wrappee__methaneQuery_~tmp~4#1| 1)) (= |processEnvironment__wrappee__methaneQuery_activatePump_#t~ret36#1| ~methaneLevelCritical~0))) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse1 .cse3) (or (not .cse4) .cse0 (not (= ~methaneLevelCritical~0 1)) .cse2 .cse3))) [2022-12-14 10:10:39,437 INFO L895 garLoopResultBuilder]: At program point L715(line 715) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 1)) .cse2) (or .cse0 .cse1 .cse3 .cse2) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse3 .cse2))) [2022-12-14 10:10:39,437 INFO L899 garLoopResultBuilder]: For program point L715-1(lines 696 720) no Hoare annotation was computed. [2022-12-14 10:10:39,437 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 696 720) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (= ~methaneLevelCritical~0 1)) .cse1) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1))) [2022-12-14 10:10:39,437 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 696 720) no Hoare annotation was computed. [2022-12-14 10:10:39,437 INFO L895 garLoopResultBuilder]: At program point L710(line 710) the Hoare annotation is: (let ((.cse1 (and (= ~pumpRunning~0 0) (or (= |processEnvironment__wrappee__methaneQuery_~tmp~4#1| 0) (= |processEnvironment__wrappee__methaneQuery_~tmp~4#1| 1)))) (.cse2 (not (= 1 ~systemActive~0))) (.cse0 (= |old(~pumpRunning~0)| 0)) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not .cse0) .cse1 .cse2 (not (= ~methaneLevelCritical~0 1)) .cse3) (or .cse1 .cse2 .cse4 .cse3) (or .cse2 .cse0 .cse4 .cse3))) [2022-12-14 10:10:39,438 INFO L902 garLoopResultBuilder]: At program point L785(line 785) the Hoare annotation is: true [2022-12-14 10:10:39,438 INFO L899 garLoopResultBuilder]: For program point L785-1(line 785) no Hoare annotation was computed. [2022-12-14 10:10:39,438 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 780 790) no Hoare annotation was computed. [2022-12-14 10:10:39,438 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 780 790) the Hoare annotation is: true [2022-12-14 10:10:39,440 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:10:39,441 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 10:10:39,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 10:10:39 BoogieIcfgContainer [2022-12-14 10:10:39,459 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 10:10:39,460 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 10:10:39,460 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 10:10:39,460 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 10:10:39,461 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:10:11" (3/4) ... [2022-12-14 10:10:39,463 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 10:10:39,468 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-12-14 10:10:39,468 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-12-14 10:10:39,468 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-12-14 10:10:39,468 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-12-14 10:10:39,468 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-12-14 10:10:39,468 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-12-14 10:10:39,468 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-12-14 10:10:39,468 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-12-14 10:10:39,472 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2022-12-14 10:10:39,472 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-12-14 10:10:39,473 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-14 10:10:39,473 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 10:10:39,473 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 10:10:39,489 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0)) || !(methaneLevelCritical == 0)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 1))) && (((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0)) || !(methaneLevelCritical == 1)) [2022-12-14 10:10:39,490 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || (((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && !(pumpRunning == 0)) && tmp == methaneLevelCritical)) && (((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || (methAndRunningLastTime == 0 && pumpRunning == 1)) || !(methaneLevelCritical == 0)) || (((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && !(pumpRunning == 0)) && tmp == methaneLevelCritical)) || (pumpRunning == 0 && methAndRunningLastTime == 0))) && (((!(1 == systemActive) || \old(pumpRunning) == 0) || (pumpRunning == 0 && tmp == methaneLevelCritical)) || !(methaneLevelCritical == 1))) && (((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) [2022-12-14 10:10:39,490 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(methAndRunningLastTime == 0)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(methAndRunningLastTime == 0)) [2022-12-14 10:10:39,490 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || (((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && !(pumpRunning == 0)) && tmp == methaneLevelCritical)) && (((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || ((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && !(pumpRunning == 0)))) && (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 1)) || (pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical)) [2022-12-14 10:10:39,490 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(methAndRunningLastTime) == 0) || (((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical)) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 1)) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && tmp == methaneLevelCritical))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == methaneLevelCritical)) || ((methAndRunningLastTime == 0 && tmp == methaneLevelCritical) && pumpRunning == 1))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == methaneLevelCritical)) || !(methaneLevelCritical == 1)) [2022-12-14 10:10:39,491 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (((methAndRunningLastTime == 0 && tmp == methaneLevelCritical) && 1 == systemActive) && pumpRunning == 1)) || !(methaneLevelCritical == 0)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == methaneLevelCritical)) && (((((((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && tmp == 0) && tmp == methaneLevelCritical) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0))) && (((!(1 == systemActive) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 1))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || ((((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && 1 == systemActive) && tmp___0 == 0)) [2022-12-14 10:10:39,491 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || ((pumpRunning == 0 && (tmp == 0 || tmp == 1)) && aux-isMethaneAlarm()-aux == methaneLevelCritical)) || !(methAndRunningLastTime == 0)) && (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(methAndRunningLastTime == 0))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || ((pumpRunning == 0 && (tmp == 0 || tmp == 1)) && aux-isMethaneAlarm()-aux == methaneLevelCritical)) || !(methAndRunningLastTime == 0)) [2022-12-14 10:10:39,491 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1))) && ((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 1)) [2022-12-14 10:10:39,505 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 10:10:39,505 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 10:10:39,505 INFO L158 Benchmark]: Toolchain (without parser) took 28788.04ms. Allocated memory was 132.1MB in the beginning and 281.0MB in the end (delta: 148.9MB). Free memory was 93.3MB in the beginning and 104.1MB in the end (delta: -10.8MB). Peak memory consumption was 138.9MB. Max. memory is 16.1GB. [2022-12-14 10:10:39,505 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 132.1MB. Free memory was 101.1MB in the beginning and 101.1MB in the end (delta: 70.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:10:39,506 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.29ms. Allocated memory is still 132.1MB. Free memory was 93.3MB in the beginning and 74.8MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 10:10:39,506 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.41ms. Allocated memory is still 132.1MB. Free memory was 74.4MB in the beginning and 72.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:10:39,506 INFO L158 Benchmark]: Boogie Preprocessor took 18.42ms. Allocated memory is still 132.1MB. Free memory was 72.3MB in the beginning and 71.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:10:39,506 INFO L158 Benchmark]: RCFGBuilder took 431.14ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 70.6MB in the beginning and 129.4MB in the end (delta: -58.9MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2022-12-14 10:10:39,506 INFO L158 Benchmark]: TraceAbstraction took 27985.93ms. Allocated memory was 159.4MB in the beginning and 281.0MB in the end (delta: 121.6MB). Free memory was 129.2MB in the beginning and 109.3MB in the end (delta: 19.9MB). Peak memory consumption was 176.5MB. Max. memory is 16.1GB. [2022-12-14 10:10:39,507 INFO L158 Benchmark]: Witness Printer took 44.99ms. Allocated memory is still 281.0MB. Free memory was 109.3MB in the beginning and 104.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 10:10:39,508 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 132.1MB. Free memory was 101.1MB in the beginning and 101.1MB in the end (delta: 70.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.29ms. Allocated memory is still 132.1MB. Free memory was 93.3MB in the beginning and 74.8MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.41ms. Allocated memory is still 132.1MB. Free memory was 74.4MB in the beginning and 72.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.42ms. Allocated memory is still 132.1MB. Free memory was 72.3MB in the beginning and 71.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 431.14ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 70.6MB in the beginning and 129.4MB in the end (delta: -58.9MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. * TraceAbstraction took 27985.93ms. Allocated memory was 159.4MB in the beginning and 281.0MB in the end (delta: 121.6MB). Free memory was 129.2MB in the beginning and 109.3MB in the end (delta: 19.9MB). Peak memory consumption was 176.5MB. Max. memory is 16.1GB. * Witness Printer took 44.99ms. Allocated memory is still 281.0MB. Free memory was 109.3MB in the beginning and 104.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 868]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 27.9s, OverallIterations: 10, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1334 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1302 mSDsluCounter, 2417 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1834 mSDsCounter, 935 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6453 IncrementalHoareTripleChecker+Invalid, 7388 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 935 mSolverCounterUnsat, 583 mSDtfsCounter, 6453 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1076 GetRequests, 779 SyntacticMatches, 19 SemanticMatches, 278 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9888 ImplicationChecksByTransitivity, 13.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=710occurred in iteration=9, InterpolantAutomatonStates: 154, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 235 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 37 LocationsWithAnnotation, 1724 PreInvPairs, 1944 NumberOfFragments, 1427 HoareAnnotationTreeSize, 1724 FomulaSimplifications, 5808 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 37 FomulaSimplificationsInter, 16556 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 1086 NumberOfCodeBlocks, 1000 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1250 ConstructedInterpolants, 0 QuantifiedInterpolants, 2815 SizeOfPredicates, 29 NumberOfNonLiveVariables, 1841 ConjunctsInSsa, 120 ConjunctsInUnsatCore, 18 InterpolantComputations, 8 PerfectInterpolantSequences, 895/1007 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: 882]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (((methAndRunningLastTime == 0 && tmp == methaneLevelCritical) && 1 == systemActive) && pumpRunning == 1)) || !(methaneLevelCritical == 0)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == methaneLevelCritical)) && (((((((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && tmp == 0) && tmp == methaneLevelCritical) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0))) && (((!(1 == systemActive) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 1))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || ((((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && 1 == systemActive) && tmp___0 == 0)) - InvariantResult [Line: 730]: Loop Invariant Derived loop invariant: ((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || (((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && !(pumpRunning == 0)) && tmp == methaneLevelCritical)) && (((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || ((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && !(pumpRunning == 0)))) && (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 1)) || (pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical)) - InvariantResult [Line: 700]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(methAndRunningLastTime == 0)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 642]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 921]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 868]: Loop Invariant Derived loop invariant: (((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1))) && ((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 1)) - InvariantResult [Line: 760]: Loop Invariant Derived loop invariant: ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || ((pumpRunning == 0 && (tmp == 0 || tmp == 1)) && aux-isMethaneAlarm()-aux == methaneLevelCritical)) || !(methAndRunningLastTime == 0)) && (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(methAndRunningLastTime == 0))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || ((pumpRunning == 0 && (tmp == 0 || tmp == 1)) && aux-isMethaneAlarm()-aux == methaneLevelCritical)) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 922]: Loop Invariant Derived loop invariant: ((((methAndRunningLastTime == 0 && methaneLevelCritical == 0) && 1 == systemActive) && splverifierCounter == 0) && tmp == 1) || (((((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical == 1) && splverifierCounter == 0) && tmp == 1) - InvariantResult [Line: 722]: Loop Invariant Derived loop invariant: ((((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || (((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && !(pumpRunning == 0)) && tmp == methaneLevelCritical)) && (((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || (methAndRunningLastTime == 0 && pumpRunning == 1)) || !(methaneLevelCritical == 0)) || (((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && !(pumpRunning == 0)) && tmp == methaneLevelCritical)) || (pumpRunning == 0 && methAndRunningLastTime == 0))) && (((!(1 == systemActive) || \old(pumpRunning) == 0) || (pumpRunning == 0 && tmp == methaneLevelCritical)) || !(methaneLevelCritical == 1))) && (((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) - InvariantResult [Line: 567]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 642]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && tmp == 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((!(\old(methAndRunningLastTime) == 0) || (((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical)) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 1)) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && tmp == methaneLevelCritical))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == methaneLevelCritical)) || ((methAndRunningLastTime == 0 && tmp == methaneLevelCritical) && pumpRunning == 1))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == methaneLevelCritical)) || !(methaneLevelCritical == 1)) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 557]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 912]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 664]: Loop Invariant Derived loop invariant: ((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0)) || !(methaneLevelCritical == 0)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 1))) && (((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0)) || !(methaneLevelCritical == 1)) - InvariantResult [Line: 942]: Loop Invariant Derived loop invariant: (((((methAndRunningLastTime == 0 && methaneLevelCritical == 0) && 1 == systemActive) && splverifierCounter == 0) && tmp == 1) || ((((methAndRunningLastTime == 0 && 1 == systemActive) && methaneLevelCritical == 1) && splverifierCounter == 0) && tmp == 1)) || ((((!(pumpRunning == 0) && 1 == systemActive) && methaneLevelCritical == 1) && splverifierCounter == 0) && tmp == 1) RESULT: Ultimate proved your program to be correct! [2022-12-14 10:10:39,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa93e90e-b4d3-44c2-b344-4d2198bea833/bin/utaipan-gh47qXpMRh/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