./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product64.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_db1c8e5c-49b0-4f8c-acd4-ead5b83efe1c/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1c8e5c-49b0-4f8c-acd4-ead5b83efe1c/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_db1c8e5c-49b0-4f8c-acd4-ead5b83efe1c/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1c8e5c-49b0-4f8c-acd4-ead5b83efe1c/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1c8e5c-49b0-4f8c-acd4-ead5b83efe1c/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_db1c8e5c-49b0-4f8c-acd4-ead5b83efe1c/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 c6b9b08cafcd1ede2e2b3a8fb1be067350eaac45a7dc4fb4db0fb4cb0fdccd74 --- 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 08:10:57,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:10:57,644 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:10:57,662 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:10:57,663 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:10:57,664 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:10:57,665 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:10:57,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:10:57,668 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:10:57,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:10:57,670 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:10:57,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:10:57,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:10:57,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:10:57,673 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:10:57,674 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:10:57,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:10:57,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:10:57,678 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:10:57,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:10:57,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:10:57,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:10:57,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:10:57,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:10:57,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:10:57,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:10:57,689 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:10:57,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:10:57,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:10:57,691 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:10:57,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:10:57,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:10:57,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:10:57,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:10:57,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:10:57,695 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:10:57,696 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:10:57,696 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:10:57,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:10:57,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:10:57,698 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:10:57,699 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1c8e5c-49b0-4f8c-acd4-ead5b83efe1c/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 08:10:57,720 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:10:57,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:10:57,720 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:10:57,720 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:10:57,721 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:10:57,721 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:10:57,721 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:10:57,722 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:10:57,722 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:10:57,722 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:10:57,722 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:10:57,722 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:10:57,723 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:10:57,723 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:10:57,723 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:10:57,723 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:10:57,723 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:10:57,724 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:10:57,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:10:57,724 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:10:57,725 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:10:57,725 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:10:57,725 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:10:57,725 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:10:57,725 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:10:57,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:10:57,726 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:10:57,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:10:57,726 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:10:57,726 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:10:57,726 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:10:57,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:10:57,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:10:57,727 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:10:57,727 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:10:57,727 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:10:57,728 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:10:57,728 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:10:57,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:10:57,728 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:10:57,728 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:10:57,728 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_db1c8e5c-49b0-4f8c-acd4-ead5b83efe1c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1c8e5c-49b0-4f8c-acd4-ead5b83efe1c/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6b9b08cafcd1ede2e2b3a8fb1be067350eaac45a7dc4fb4db0fb4cb0fdccd74 [2022-12-14 08:10:57,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:10:57,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:10:57,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:10:57,915 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:10:57,915 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:10:57,916 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1c8e5c-49b0-4f8c-acd4-ead5b83efe1c/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c [2022-12-14 08:11:00,563 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:11:00,724 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:11:00,725 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1c8e5c-49b0-4f8c-acd4-ead5b83efe1c/sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c [2022-12-14 08:11:00,732 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1c8e5c-49b0-4f8c-acd4-ead5b83efe1c/bin/utaipan-gh47qXpMRh/data/e22446bc0/4a7047290fdd4edc8eaa7f71b977dc19/FLAG8c96cedcf [2022-12-14 08:11:00,743 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1c8e5c-49b0-4f8c-acd4-ead5b83efe1c/bin/utaipan-gh47qXpMRh/data/e22446bc0/4a7047290fdd4edc8eaa7f71b977dc19 [2022-12-14 08:11:00,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:11:00,746 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:11:00,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:11:00,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:11:00,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:11:00,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:11:00" (1/1) ... [2022-12-14 08:11:00,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8157ce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:11:00, skipping insertion in model container [2022-12-14 08:11:00,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:11:00" (1/1) ... [2022-12-14 08:11:00,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:11:00,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:11:00,885 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_db1c8e5c-49b0-4f8c-acd4-ead5b83efe1c/sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c[1605,1618] [2022-12-14 08:11:00,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:11:00,985 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:11:00,998 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_db1c8e5c-49b0-4f8c-acd4-ead5b83efe1c/sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c[1605,1618] [2022-12-14 08:11:01,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:11:01,060 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:11:01,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:11:01 WrapperNode [2022-12-14 08:11:01,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:11:01,062 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:11:01,062 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:11:01,062 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:11:01,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:11:01" (1/1) ... [2022-12-14 08:11:01,077 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:11:01" (1/1) ... [2022-12-14 08:11:01,093 INFO L138 Inliner]: procedures = 59, calls = 107, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 220 [2022-12-14 08:11:01,094 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:11:01,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:11:01,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:11:01,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:11:01,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:11:01" (1/1) ... [2022-12-14 08:11:01,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:11:01" (1/1) ... [2022-12-14 08:11:01,103 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:11:01" (1/1) ... [2022-12-14 08:11:01,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:11:01" (1/1) ... [2022-12-14 08:11:01,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:11:01" (1/1) ... [2022-12-14 08:11:01,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:11:01" (1/1) ... [2022-12-14 08:11:01,111 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:11:01" (1/1) ... [2022-12-14 08:11:01,112 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:11:01" (1/1) ... [2022-12-14 08:11:01,114 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:11:01,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:11:01,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:11:01,115 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:11:01,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:11:01" (1/1) ... [2022-12-14 08:11:01,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:11:01,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1c8e5c-49b0-4f8c-acd4-ead5b83efe1c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:11:01,139 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1c8e5c-49b0-4f8c-acd4-ead5b83efe1c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:11:01,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1c8e5c-49b0-4f8c-acd4-ead5b83efe1c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:11:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:11:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-12-14 08:11:01,176 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-12-14 08:11:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-12-14 08:11:01,176 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-12-14 08:11:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-12-14 08:11:01,176 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-12-14 08:11:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-12-14 08:11:01,176 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-12-14 08:11:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-12-14 08:11:01,176 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-12-14 08:11:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-12-14 08:11:01,177 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-12-14 08:11:01,177 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-12-14 08:11:01,177 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-12-14 08:11:01,177 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-12-14 08:11:01,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-12-14 08:11:01,177 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-12-14 08:11:01,177 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-12-14 08:11:01,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:11:01,177 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-12-14 08:11:01,177 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-12-14 08:11:01,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:11:01,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:11:01,239 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:11:01,241 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:11:01,486 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:11:01,564 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:11:01,565 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 08:11:01,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:11:01 BoogieIcfgContainer [2022-12-14 08:11:01,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:11:01,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:11:01,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:11:01,574 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:11:01,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:11:00" (1/3) ... [2022-12-14 08:11:01,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fdef08a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:11:01, skipping insertion in model container [2022-12-14 08:11:01,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:11:01" (2/3) ... [2022-12-14 08:11:01,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fdef08a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:11:01, skipping insertion in model container [2022-12-14 08:11:01,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:11:01" (3/3) ... [2022-12-14 08:11:01,577 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product64.cil.c [2022-12-14 08:11:01,601 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:11:01,601 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 08:11:01,650 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:11:01,657 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;@a69830d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:11:01,657 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 08:11:01,662 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 48 states have (on average 1.4166666666666667) internal successors, (68), 59 states have internal predecessors, (68), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) [2022-12-14 08:11:01,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 08:11:01,671 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:11:01,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:11:01,673 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:11:01,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:11:01,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1098072094, now seen corresponding path program 1 times [2022-12-14 08:11:01,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:11:01,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220884517] [2022-12-14 08:11:01,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:11:01,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:11:01,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:11:01,817 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 08:11:01,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:11:01,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220884517] [2022-12-14 08:11:01,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220884517] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:11:01,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:11:01,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:11:01,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451256168] [2022-12-14 08:11:01,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:11:01,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 08:11:01,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:11:01,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 08:11:01,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:11:01,847 INFO L87 Difference]: Start difference. First operand has 79 states, 48 states have (on average 1.4166666666666667) internal successors, (68), 59 states have internal predecessors, (68), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 08:11:01,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:11:01,904 INFO L93 Difference]: Finished difference Result 156 states and 213 transitions. [2022-12-14 08:11:01,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 08:11:01,907 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-12-14 08:11:01,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:11:01,916 INFO L225 Difference]: With dead ends: 156 [2022-12-14 08:11:01,916 INFO L226 Difference]: Without dead ends: 74 [2022-12-14 08:11:01,920 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 08:11:01,923 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:11:01,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:11:01,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-12-14 08:11:01,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-12-14 08:11:01,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 55 states have internal predecessors, (60), 19 states have call successors, (19), 10 states have call predecessors, (19), 9 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2022-12-14 08:11:01,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 97 transitions. [2022-12-14 08:11:01,959 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 97 transitions. Word has length 16 [2022-12-14 08:11:01,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:11:01,959 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 97 transitions. [2022-12-14 08:11:01,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 08:11:01,959 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 97 transitions. [2022-12-14 08:11:01,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 08:11:01,961 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:11:01,961 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 08:11:01,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:11:01,962 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:11:01,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:11:01,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1690261823, now seen corresponding path program 1 times [2022-12-14 08:11:01,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:11:01,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636731591] [2022-12-14 08:11:01,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:11:01,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:11:01,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:11:02,053 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 08:11:02,054 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:11:02,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636731591] [2022-12-14 08:11:02,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636731591] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:11:02,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:11:02,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:11:02,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988200572] [2022-12-14 08:11:02,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:11:02,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:11:02,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:11:02,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:11:02,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:11:02,057 INFO L87 Difference]: Start difference. First operand 74 states and 97 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 08:11:02,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:11:02,102 INFO L93 Difference]: Finished difference Result 120 states and 156 transitions. [2022-12-14 08:11:02,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:11:02,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 08:11:02,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:11:02,104 INFO L225 Difference]: With dead ends: 120 [2022-12-14 08:11:02,104 INFO L226 Difference]: Without dead ends: 66 [2022-12-14 08:11:02,105 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 08:11:02,107 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 14 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:11:02,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 124 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:11:02,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-12-14 08:11:02,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-12-14 08:11:02,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 40 states have (on average 1.35) internal successors, (54), 50 states have internal predecessors, (54), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 08:11:02,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 86 transitions. [2022-12-14 08:11:02,116 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 86 transitions. Word has length 17 [2022-12-14 08:11:02,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:11:02,117 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 86 transitions. [2022-12-14 08:11:02,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 08:11:02,117 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 86 transitions. [2022-12-14 08:11:02,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 08:11:02,117 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:11:02,118 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 08:11:02,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 08:11:02,118 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:11:02,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:11:02,118 INFO L85 PathProgramCache]: Analyzing trace with hash -65501388, now seen corresponding path program 1 times [2022-12-14 08:11:02,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:11:02,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260334058] [2022-12-14 08:11:02,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:11:02,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:11:02,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:11:02,209 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 08:11:02,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:11:02,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260334058] [2022-12-14 08:11:02,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260334058] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:11:02,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:11:02,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:11:02,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889292701] [2022-12-14 08:11:02,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:11:02,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:11:02,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:11:02,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:11:02,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:11:02,210 INFO L87 Difference]: Start difference. First operand 66 states and 86 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 08:11:02,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:11:02,282 INFO L93 Difference]: Finished difference Result 163 states and 212 transitions. [2022-12-14 08:11:02,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 08:11:02,283 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-12-14 08:11:02,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:11:02,284 INFO L225 Difference]: With dead ends: 163 [2022-12-14 08:11:02,284 INFO L226 Difference]: Without dead ends: 99 [2022-12-14 08:11:02,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:11:02,285 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 109 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:11:02,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 167 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:11:02,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-12-14 08:11:02,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 96. [2022-12-14 08:11:02,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 60 states have (on average 1.35) internal successors, (81), 73 states have internal predecessors, (81), 21 states have call successors, (21), 14 states have call predecessors, (21), 14 states have return successors, (22), 15 states have call predecessors, (22), 21 states have call successors, (22) [2022-12-14 08:11:02,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 124 transitions. [2022-12-14 08:11:02,297 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 124 transitions. Word has length 20 [2022-12-14 08:11:02,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:11:02,297 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 124 transitions. [2022-12-14 08:11:02,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 08:11:02,298 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 124 transitions. [2022-12-14 08:11:02,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 08:11:02,298 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:11:02,298 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 08:11:02,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 08:11:02,299 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:11:02,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:11:02,299 INFO L85 PathProgramCache]: Analyzing trace with hash -2056789634, now seen corresponding path program 1 times [2022-12-14 08:11:02,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:11:02,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057109191] [2022-12-14 08:11:02,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:11:02,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:11:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:11:02,377 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 08:11:02,377 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:11:02,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057109191] [2022-12-14 08:11:02,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057109191] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:11:02,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:11:02,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 08:11:02,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666410089] [2022-12-14 08:11:02,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:11:02,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 08:11:02,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:11:02,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 08:11:02,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 08:11:02,379 INFO L87 Difference]: Start difference. First operand 96 states and 124 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 08:11:02,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:11:02,523 INFO L93 Difference]: Finished difference Result 282 states and 371 transitions. [2022-12-14 08:11:02,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 08:11:02,523 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 23 [2022-12-14 08:11:02,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:11:02,525 INFO L225 Difference]: With dead ends: 282 [2022-12-14 08:11:02,525 INFO L226 Difference]: Without dead ends: 188 [2022-12-14 08:11:02,526 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 08:11:02,527 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 64 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:11:02,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 368 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:11:02,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-12-14 08:11:02,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 180. [2022-12-14 08:11:02,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 113 states have (on average 1.336283185840708) internal successors, (151), 136 states have internal predecessors, (151), 40 states have call successors, (40), 26 states have call predecessors, (40), 26 states have return successors, (42), 28 states have call predecessors, (42), 40 states have call successors, (42) [2022-12-14 08:11:02,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 233 transitions. [2022-12-14 08:11:02,557 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 233 transitions. Word has length 23 [2022-12-14 08:11:02,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:11:02,558 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 233 transitions. [2022-12-14 08:11:02,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 08:11:02,558 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 233 transitions. [2022-12-14 08:11:02,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 08:11:02,560 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:11:02,560 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, 1, 1, 1] [2022-12-14 08:11:02,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 08:11:02,560 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:11:02,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:11:02,561 INFO L85 PathProgramCache]: Analyzing trace with hash 412659912, now seen corresponding path program 1 times [2022-12-14 08:11:02,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:11:02,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952058236] [2022-12-14 08:11:02,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:11:02,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:11:02,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:11:02,623 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 08:11:02,624 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:11:02,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952058236] [2022-12-14 08:11:02,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952058236] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:11:02,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:11:02,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:11:02,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924163078] [2022-12-14 08:11:02,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:11:02,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:11:02,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:11:02,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:11:02,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:11:02,625 INFO L87 Difference]: Start difference. First operand 180 states and 233 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 08:11:02,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:11:02,705 INFO L93 Difference]: Finished difference Result 440 states and 588 transitions. [2022-12-14 08:11:02,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 08:11:02,706 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 26 [2022-12-14 08:11:02,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:11:02,708 INFO L225 Difference]: With dead ends: 440 [2022-12-14 08:11:02,708 INFO L226 Difference]: Without dead ends: 262 [2022-12-14 08:11:02,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:11:02,711 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 49 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:11:02,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 203 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:11:02,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-12-14 08:11:02,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 254. [2022-12-14 08:11:02,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 167 states have (on average 1.2634730538922156) internal successors, (211), 185 states have internal predecessors, (211), 47 states have call successors, (47), 39 states have call predecessors, (47), 39 states have return successors, (63), 43 states have call predecessors, (63), 47 states have call successors, (63) [2022-12-14 08:11:02,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 321 transitions. [2022-12-14 08:11:02,746 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 321 transitions. Word has length 26 [2022-12-14 08:11:02,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:11:02,746 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 321 transitions. [2022-12-14 08:11:02,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 08:11:02,747 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 321 transitions. [2022-12-14 08:11:02,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-14 08:11:02,748 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:11:02,749 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:11:02,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 08:11:02,749 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:11:02,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:11:02,750 INFO L85 PathProgramCache]: Analyzing trace with hash 323429505, now seen corresponding path program 1 times [2022-12-14 08:11:02,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:11:02,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426526849] [2022-12-14 08:11:02,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:11:02,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:11:02,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:11:02,793 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 08:11:02,793 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:11:02,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426526849] [2022-12-14 08:11:02,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426526849] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:11:02,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:11:02,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:11:02,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161002167] [2022-12-14 08:11:02,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:11:02,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:11:02,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:11:02,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:11:02,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:11:02,796 INFO L87 Difference]: Start difference. First operand 254 states and 321 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-14 08:11:02,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:11:02,855 INFO L93 Difference]: Finished difference Result 510 states and 644 transitions. [2022-12-14 08:11:02,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:11:02,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 47 [2022-12-14 08:11:02,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:11:02,858 INFO L225 Difference]: With dead ends: 510 [2022-12-14 08:11:02,858 INFO L226 Difference]: Without dead ends: 258 [2022-12-14 08:11:02,859 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 08:11:02,860 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 29 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:11:02,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 155 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:11:02,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-12-14 08:11:02,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 254. [2022-12-14 08:11:02,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 167 states have (on average 1.251497005988024) internal successors, (209), 185 states have internal predecessors, (209), 47 states have call successors, (47), 39 states have call predecessors, (47), 39 states have return successors, (59), 43 states have call predecessors, (59), 47 states have call successors, (59) [2022-12-14 08:11:02,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 315 transitions. [2022-12-14 08:11:02,889 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 315 transitions. Word has length 47 [2022-12-14 08:11:02,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:11:02,890 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 315 transitions. [2022-12-14 08:11:02,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-14 08:11:02,890 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 315 transitions. [2022-12-14 08:11:02,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-14 08:11:02,892 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:11:02,892 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:11:02,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 08:11:02,892 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:11:02,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:11:02,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1894835617, now seen corresponding path program 1 times [2022-12-14 08:11:02,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:11:02,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019477834] [2022-12-14 08:11:02,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:11:02,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:11:02,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:11:03,149 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 08:11:03,149 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:11:03,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019477834] [2022-12-14 08:11:03,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019477834] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:11:03,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:11:03,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 08:11:03,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465158782] [2022-12-14 08:11:03,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:11:03,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 08:11:03,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:11:03,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 08:11:03,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-14 08:11:03,151 INFO L87 Difference]: Start difference. First operand 254 states and 315 transitions. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-12-14 08:11:03,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:11:03,318 INFO L93 Difference]: Finished difference Result 744 states and 927 transitions. [2022-12-14 08:11:03,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 08:11:03,319 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 44 [2022-12-14 08:11:03,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:11:03,322 INFO L225 Difference]: With dead ends: 744 [2022-12-14 08:11:03,322 INFO L226 Difference]: Without dead ends: 492 [2022-12-14 08:11:03,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-14 08:11:03,324 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 145 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:11:03,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 244 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:11:03,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-12-14 08:11:03,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 432. [2022-12-14 08:11:03,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 295 states have (on average 1.2440677966101694) internal successors, (367), 316 states have internal predecessors, (367), 68 states have call successors, (68), 62 states have call predecessors, (68), 68 states have return successors, (86), 68 states have call predecessors, (86), 68 states have call successors, (86) [2022-12-14 08:11:03,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 521 transitions. [2022-12-14 08:11:03,368 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 521 transitions. Word has length 44 [2022-12-14 08:11:03,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:11:03,368 INFO L495 AbstractCegarLoop]: Abstraction has 432 states and 521 transitions. [2022-12-14 08:11:03,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-12-14 08:11:03,368 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 521 transitions. [2022-12-14 08:11:03,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-14 08:11:03,369 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:11:03,370 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:11:03,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 08:11:03,370 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:11:03,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:11:03,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1824389237, now seen corresponding path program 1 times [2022-12-14 08:11:03,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:11:03,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614763581] [2022-12-14 08:11:03,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:11:03,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:11:03,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:11:03,611 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 08:11:03,611 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:11:03,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614763581] [2022-12-14 08:11:03,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614763581] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:11:03,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64743640] [2022-12-14 08:11:03,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:11:03,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:11:03,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1c8e5c-49b0-4f8c-acd4-ead5b83efe1c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:11:03,613 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1c8e5c-49b0-4f8c-acd4-ead5b83efe1c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:11:03,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1c8e5c-49b0-4f8c-acd4-ead5b83efe1c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 08:11:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:11:03,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 33 conjunts are in the unsatisfiable core [2022-12-14 08:11:03,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:11:03,963 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:11:03,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:11:04,378 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 08:11:04,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64743640] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:11:04,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [728031004] [2022-12-14 08:11:04,393 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2022-12-14 08:11:04,393 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:11:04,396 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:11:04,400 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:11:04,400 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:11:05,237 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 114 for LOIs [2022-12-14 08:11:05,245 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 134 for LOIs [2022-12-14 08:11:05,651 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 129 for LOIs [2022-12-14 08:11:05,891 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 129 for LOIs [2022-12-14 08:11:06,249 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 130 for LOIs [2022-12-14 08:11:06,422 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 43 for LOIs [2022-12-14 08:11:06,426 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 112 for LOIs [2022-12-14 08:11:06,433 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:11:16,210 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6138#(and (= |timeShift___utac_acc__Specification1_spec__1_~tmp~0#1| ~methaneLevelCritical~0) (= ~head~0.offset 0) (<= 2 ~waterLevel~0) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification1_spec__1_~tmp___0~0#1|) (<= 2 |old(~waterLevel~0)|) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~7#1|) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~7#1|) (= ~head~0.base 0) (= |#NULL.offset| 0) (not (= |timeShift___utac_acc__Specification1_spec__1_~tmp~0#1| 0)) (<= 0 |timeShift___utac_acc__Specification1_spec__1_~tmp~0#1|) (<= 0 |#StackHeapBarrier|) (<= |timeShift___utac_acc__Specification1_spec__1_~tmp~0#1| 1) (= ~pumpRunning~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-12-14 08:11:16,210 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 08:11:16,210 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:11:16,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 12] total 31 [2022-12-14 08:11:16,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568708659] [2022-12-14 08:11:16,211 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 08:11:16,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-12-14 08:11:16,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:11:16,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-12-14 08:11:16,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=453, Invalid=3329, Unknown=0, NotChecked=0, Total=3782 [2022-12-14 08:11:16,215 INFO L87 Difference]: Start difference. First operand 432 states and 521 transitions. Second operand has 31 states, 22 states have (on average 3.227272727272727) internal successors, (71), 22 states have internal predecessors, (71), 7 states have call successors, (18), 6 states have call predecessors, (18), 13 states have return successors, (19), 15 states have call predecessors, (19), 7 states have call successors, (19) [2022-12-14 08:11:20,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:11:20,424 INFO L93 Difference]: Finished difference Result 1726 states and 2326 transitions. [2022-12-14 08:11:20,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-12-14 08:11:20,425 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 22 states have (on average 3.227272727272727) internal successors, (71), 22 states have internal predecessors, (71), 7 states have call successors, (18), 6 states have call predecessors, (18), 13 states have return successors, (19), 15 states have call predecessors, (19), 7 states have call successors, (19) Word has length 47 [2022-12-14 08:11:20,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:11:20,432 INFO L225 Difference]: With dead ends: 1726 [2022-12-14 08:11:20,432 INFO L226 Difference]: Without dead ends: 1285 [2022-12-14 08:11:20,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 108 SyntacticMatches, 4 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7580 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=2100, Invalid=18492, Unknown=0, NotChecked=0, Total=20592 [2022-12-14 08:11:20,437 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 1544 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 4670 mSolverCounterSat, 1259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1550 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 5929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1259 IncrementalHoareTripleChecker+Valid, 4670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-14 08:11:20,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1550 Valid, 1220 Invalid, 5929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1259 Valid, 4670 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-14 08:11:20,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1285 states. [2022-12-14 08:11:20,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1285 to 857. [2022-12-14 08:11:20,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 582 states have (on average 1.2061855670103092) internal successors, (702), 620 states have internal predecessors, (702), 133 states have call successors, (133), 117 states have call predecessors, (133), 141 states have return successors, (173), 146 states have call predecessors, (173), 133 states have call successors, (173) [2022-12-14 08:11:20,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1008 transitions. [2022-12-14 08:11:20,497 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1008 transitions. Word has length 47 [2022-12-14 08:11:20,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:11:20,498 INFO L495 AbstractCegarLoop]: Abstraction has 857 states and 1008 transitions. [2022-12-14 08:11:20,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 22 states have (on average 3.227272727272727) internal successors, (71), 22 states have internal predecessors, (71), 7 states have call successors, (18), 6 states have call predecessors, (18), 13 states have return successors, (19), 15 states have call predecessors, (19), 7 states have call successors, (19) [2022-12-14 08:11:20,498 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1008 transitions. [2022-12-14 08:11:20,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-12-14 08:11:20,500 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:11:20,500 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:11:20,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1c8e5c-49b0-4f8c-acd4-ead5b83efe1c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 08:11:20,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1c8e5c-49b0-4f8c-acd4-ead5b83efe1c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 08:11:20,701 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:11:20,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:11:20,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1493264645, now seen corresponding path program 1 times [2022-12-14 08:11:20,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:11:20,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013306394] [2022-12-14 08:11:20,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:11:20,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:11:20,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:11:20,838 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 08:11:20,838 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:11:20,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013306394] [2022-12-14 08:11:20,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013306394] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:11:20,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:11:20,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 08:11:20,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271953383] [2022-12-14 08:11:20,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:11:20,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 08:11:20,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:11:20,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 08:11:20,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-14 08:11:20,840 INFO L87 Difference]: Start difference. First operand 857 states and 1008 transitions. Second operand has 10 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 08:11:21,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:11:21,182 INFO L93 Difference]: Finished difference Result 1682 states and 2015 transitions. [2022-12-14 08:11:21,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-14 08:11:21,182 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 2 states have call successors, (14) Word has length 90 [2022-12-14 08:11:21,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:11:21,183 INFO L225 Difference]: With dead ends: 1682 [2022-12-14 08:11:21,183 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 08:11:21,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2022-12-14 08:11:21,187 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 85 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 08:11:21,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 499 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 08:11:21,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 08:11:21,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 08:11:21,188 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 08:11:21,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 08:11:21,188 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 90 [2022-12-14 08:11:21,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:11:21,188 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 08:11:21,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 08:11:21,189 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 08:11:21,189 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 08:11:21,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 08:11:21,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 08:11:21,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 08:11:25,590 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 737 744) no Hoare annotation was computed. [2022-12-14 08:11:25,590 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 737 744) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 0 ~systemActive~0)) [2022-12-14 08:11:25,590 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 627 633) no Hoare annotation was computed. [2022-12-14 08:11:25,590 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 627 633) the Hoare annotation is: true [2022-12-14 08:11:25,591 INFO L895 garLoopResultBuilder]: At program point L671(line 671) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2022-12-14 08:11:25,591 INFO L899 garLoopResultBuilder]: For program point L669(lines 669 677) no Hoare annotation was computed. [2022-12-14 08:11:25,591 INFO L895 garLoopResultBuilder]: At program point L665(lines 665 682) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2022-12-14 08:11:25,591 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 661 685) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2022-12-14 08:11:25,591 INFO L895 garLoopResultBuilder]: At program point L680(line 680) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or (not (= ~methaneLevelCritical~0 0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) .cse1))) [2022-12-14 08:11:25,591 INFO L899 garLoopResultBuilder]: For program point L680-1(lines 661 685) no Hoare annotation was computed. [2022-12-14 08:11:25,591 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 661 685) no Hoare annotation was computed. [2022-12-14 08:11:25,591 INFO L895 garLoopResultBuilder]: At program point L675(line 675) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2022-12-14 08:11:25,592 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 890 901) the Hoare annotation is: (let ((.cse0 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0))) (and (or .cse0 (= 0 ~systemActive~0)) (or (not (= ~pumpRunning~0 0)) .cse0))) [2022-12-14 08:11:25,592 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 890 901) no Hoare annotation was computed. [2022-12-14 08:11:25,592 INFO L899 garLoopResultBuilder]: For program point L614-1(lines 614 620) no Hoare annotation was computed. [2022-12-14 08:11:25,592 INFO L895 garLoopResultBuilder]: At program point L701(line 701) the Hoare annotation is: (and (not (= |old(~pumpRunning~0)| 0)) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~methaneLevelCritical~0 0) (= |timeShift_processEnvironment_~tmp~7#1| ~methaneLevelCritical~0)) (= 0 ~systemActive~0))) [2022-12-14 08:11:25,592 INFO L895 garLoopResultBuilder]: At program point L697(line 697) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (not (= |old(~pumpRunning~0)| 0)) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_processEnvironment_~tmp~7#1| ~methaneLevelCritical~0)) .cse0) (or (not (= ~methaneLevelCritical~0 0)) .cse0))) [2022-12-14 08:11:25,592 INFO L895 garLoopResultBuilder]: At program point L693(line 693) the Hoare annotation is: (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 0 ~systemActive~0)) (not (= |old(~pumpRunning~0)| 0))) [2022-12-14 08:11:25,592 INFO L899 garLoopResultBuilder]: For program point L693-1(line 693) no Hoare annotation was computed. [2022-12-14 08:11:25,592 INFO L899 garLoopResultBuilder]: For program point L111(lines 111 117) no Hoare annotation was computed. [2022-12-14 08:11:25,593 INFO L895 garLoopResultBuilder]: At program point L107(lines 107 120) the Hoare annotation is: (let ((.cse6 (= ~methaneLevelCritical~0 0))) (let ((.cse1 (= ~pumpRunning~0 0)) (.cse8 (not .cse6)) (.cse7 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~0#1| 0)) (.cse3 (= |timeShift_processEnvironment_~tmp~7#1| ~methaneLevelCritical~0)) (.cse2 (= 0 ~systemActive~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (= ~waterLevel~0 1))) (and (or .cse0 .cse1 (not .cse2)) (let ((.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (or (and .cse1 .cse3) (and .cse4 .cse1) (and (not .cse5) .cse6 (= ~pumpRunning~0 1)) (and .cse4 .cse6 .cse3) .cse2)) (or .cse7 .cse8 .cse2) (or .cse0 .cse7 .cse8) (or .cse0 .cse6 (not .cse7)) (or (not (= |old(~pumpRunning~0)| 1)) .cse3 .cse2) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse5)))) [2022-12-14 08:11:25,593 INFO L895 garLoopResultBuilder]: At program point L107-1(lines 99 123) the Hoare annotation is: (let ((.cse10 (= 0 ~systemActive~0)) (.cse11 (= ~methaneLevelCritical~0 0))) (let ((.cse1 (= ~pumpRunning~0 0)) (.cse3 (not .cse11)) (.cse9 (= ~pumpRunning~0 1)) (.cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~0#1| 0)) (.cse7 (= |timeShift_processEnvironment_~tmp~7#1| ~methaneLevelCritical~0)) (.cse4 (not .cse10))) (let ((.cse5 (and .cse6 .cse2 .cse11 .cse7 .cse4)) (.cse8 (or (and .cse1 .cse3) (and .cse11 .cse9))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse12 (= ~waterLevel~0 1))) (and (or .cse0 (and .cse1 .cse2) .cse3 .cse4) (or .cse5 (and .cse6 .cse1 .cse4) (and .cse1 .cse7 .cse4) (and .cse2 .cse8 .cse9) .cse10) (or .cse0 .cse11 (and (= |timeShift___utac_acc__Specification1_spec__1_~tmp___0~0#1| 0) (not .cse2))) (or .cse0 .cse1 .cse11) (or .cse5 .cse3 (and .cse1 .cse2 .cse4) .cse10 (and (not .cse12) .cse8)) (or (not (= |old(~pumpRunning~0)| 1)) .cse7 .cse10) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse12))))) [2022-12-14 08:11:25,593 INFO L895 garLoopResultBuilder]: At program point L706(line 706) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0)) .cse0) (or (not (= |old(~waterLevel~0)| 1)) .cse0 (= ~waterLevel~0 1)) (or (not (= |old(~pumpRunning~0)| 0)) (not .cse0)))) [2022-12-14 08:11:25,594 INFO L895 garLoopResultBuilder]: At program point L706-1(lines 687 711) the Hoare annotation is: (let ((.cse1 (= |timeShift_processEnvironment_~tmp~7#1| ~methaneLevelCritical~0)) (.cse3 (= ~waterLevel~0 1)) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (= 0 ~systemActive~0))) (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (= ~methaneLevelCritical~0 0))) (or (and .cse0 .cse1) (and .cse2 .cse0) (and (not .cse3) .cse4 (= ~pumpRunning~0 1)) (and .cse2 .cse4 .cse1) .cse5)) (or (not (= |old(~pumpRunning~0)| 1)) .cse1 .cse5) (or .cse6 (not (= |old(~waterLevel~0)| 1)) .cse3) (or .cse6 (not .cse5)))) [2022-12-14 08:11:25,594 INFO L899 garLoopResultBuilder]: For program point L607-1(lines 606 625) no Hoare annotation was computed. [2022-12-14 08:11:25,594 INFO L895 garLoopResultBuilder]: At program point L54(line 54) the Hoare annotation is: (and (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2022-12-14 08:11:25,594 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 603 626) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 0 ~systemActive~0)) (or .cse0 (= ~pumpRunning~0 0)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)))) [2022-12-14 08:11:25,594 INFO L899 garLoopResultBuilder]: For program point L695(lines 695 703) no Hoare annotation was computed. [2022-12-14 08:11:25,594 INFO L899 garLoopResultBuilder]: For program point L691(lines 691 708) no Hoare annotation was computed. [2022-12-14 08:11:25,594 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 603 626) no Hoare annotation was computed. [2022-12-14 08:11:25,595 INFO L895 garLoopResultBuilder]: At program point L105(line 105) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse3 (= |timeShift_processEnvironment_~tmp~7#1| ~methaneLevelCritical~0)) (.cse2 (= 0 ~systemActive~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (= ~waterLevel~0 1))) (and (or .cse0 .cse1 (not .cse2)) (let ((.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse6 (= ~methaneLevelCritical~0 0))) (or (and .cse1 .cse3) (and .cse4 .cse1) (and (not .cse5) .cse6 (= ~pumpRunning~0 1)) (and .cse4 .cse6 .cse3) .cse2)) (or (not (= |old(~pumpRunning~0)| 1)) .cse3 .cse2) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse5))) [2022-12-14 08:11:25,595 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2022-12-14 08:11:25,595 INFO L899 garLoopResultBuilder]: For program point L105-1(line 105) no Hoare annotation was computed. [2022-12-14 08:11:25,595 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 493 522) no Hoare annotation was computed. [2022-12-14 08:11:25,595 INFO L899 garLoopResultBuilder]: For program point L507(lines 507 511) no Hoare annotation was computed. [2022-12-14 08:11:25,595 INFO L902 garLoopResultBuilder]: At program point L507-1(lines 507 511) the Hoare annotation is: true [2022-12-14 08:11:25,595 INFO L902 garLoopResultBuilder]: At program point L503-2(lines 503 517) the Hoare annotation is: true [2022-12-14 08:11:25,595 INFO L902 garLoopResultBuilder]: At program point L499(line 499) the Hoare annotation is: true [2022-12-14 08:11:25,595 INFO L899 garLoopResultBuilder]: For program point L499-1(line 499) no Hoare annotation was computed. [2022-12-14 08:11:25,596 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 493 522) the Hoare annotation is: true [2022-12-14 08:11:25,596 INFO L902 garLoopResultBuilder]: At program point L518(lines 493 522) the Hoare annotation is: true [2022-12-14 08:11:25,596 INFO L899 garLoopResultBuilder]: For program point L514(line 514) no Hoare annotation was computed. [2022-12-14 08:11:25,596 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 902 910) the Hoare annotation is: true [2022-12-14 08:11:25,596 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 902 910) no Hoare annotation was computed. [2022-12-14 08:11:25,596 INFO L895 garLoopResultBuilder]: At program point L989(line 989) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 (not (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 0) .cse0 .cse1))) [2022-12-14 08:11:25,596 INFO L895 garLoopResultBuilder]: At program point L845(line 845) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (= ~methaneLevelCritical~0 0))) (and (or .cse0 .cse1 (not (= |isMethaneAlarm_#res| 0))) (= |ULTIMATE.start_main_~tmp~4#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (or .cse0 .cse1 (not (= |isMethaneLevelCritical_#res| 0))) (not (= 0 ~systemActive~0)) (or .cse0 .cse1 (not (= |isMethaneAlarm_#t~ret35| 0))))) [2022-12-14 08:11:25,596 INFO L895 garLoopResultBuilder]: At program point L1027(lines 976 1028) the Hoare annotation is: false [2022-12-14 08:11:25,596 INFO L899 garLoopResultBuilder]: For program point L1015(lines 1015 1021) no Hoare annotation was computed. [2022-12-14 08:11:25,597 INFO L895 garLoopResultBuilder]: At program point L1015-2(lines 1007 1022) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (not (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 0) .cse0 .cse1))) [2022-12-14 08:11:25,597 INFO L899 garLoopResultBuilder]: For program point L978(lines 977 1026) no Hoare annotation was computed. [2022-12-14 08:11:25,597 INFO L895 garLoopResultBuilder]: At program point L1007(lines 1007 1022) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (not (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 0) .cse0 .cse1))) [2022-12-14 08:11:25,597 INFO L895 garLoopResultBuilder]: At program point L999(line 999) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (not (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 0) .cse0 .cse1))) [2022-12-14 08:11:25,597 INFO L895 garLoopResultBuilder]: At program point L578(lines 578 585) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_main_~tmp~4#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-12-14 08:11:25,597 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 08:11:25,597 INFO L895 garLoopResultBuilder]: At program point L1024(lines 977 1026) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 (not (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 0) .cse0 .cse1))) [2022-12-14 08:11:25,598 INFO L902 garLoopResultBuilder]: At program point L578-2(lines 578 585) the Hoare annotation is: true [2022-12-14 08:11:25,598 INFO L899 garLoopResultBuilder]: For program point L987(lines 987 993) no Hoare annotation was computed. [2022-12-14 08:11:25,598 INFO L899 garLoopResultBuilder]: For program point L987-1(lines 987 993) no Hoare annotation was computed. [2022-12-14 08:11:25,598 INFO L899 garLoopResultBuilder]: For program point L843(lines 843 849) no Hoare annotation was computed. [2022-12-14 08:11:25,598 INFO L895 garLoopResultBuilder]: At program point L843-1(lines 843 849) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_main_~tmp~4#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-12-14 08:11:25,598 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2022-12-14 08:11:25,598 INFO L902 garLoopResultBuilder]: At program point L1030(lines 967 1034) the Hoare annotation is: true [2022-12-14 08:11:25,598 INFO L899 garLoopResultBuilder]: For program point L997(lines 997 1003) no Hoare annotation was computed. [2022-12-14 08:11:25,598 INFO L899 garLoopResultBuilder]: For program point L997-1(lines 997 1003) no Hoare annotation was computed. [2022-12-14 08:11:25,599 INFO L895 garLoopResultBuilder]: At program point L725(line 725) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and (not (= ~waterLevel~0 1)) .cse0) .cse1) (or (not (= ~methaneLevelCritical~0 0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) .cse1))) [2022-12-14 08:11:25,599 INFO L895 garLoopResultBuilder]: At program point L725-1(line 725) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 (and .cse1 (= ~methaneLevelCritical~0 |processEnvironment__wrappee__highWaterSensor_activatePump_#t~ret34#1|)) .cse2) (or (not (= ~methaneLevelCritical~0 0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1) .cse2) (or (not (= ~waterLevel~0 1)) .cse0 .cse2))) [2022-12-14 08:11:25,599 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 635 659) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2022-12-14 08:11:25,599 INFO L895 garLoopResultBuilder]: At program point L649(line 649) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (= 0 ~systemActive~0))) (and (or (not (= ~waterLevel~0 1)) .cse0 (= |processEnvironment__wrappee__highWaterSensor_~tmp~5#1| 0) .cse1) (or .cse0 .cse2 .cse1) (or (not (= ~methaneLevelCritical~0 0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2) .cse1))) [2022-12-14 08:11:25,599 INFO L899 garLoopResultBuilder]: For program point L643(lines 643 651) no Hoare annotation was computed. [2022-12-14 08:11:25,599 INFO L895 garLoopResultBuilder]: At program point L639(lines 639 656) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2022-12-14 08:11:25,599 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 635 659) no Hoare annotation was computed. [2022-12-14 08:11:25,600 INFO L895 garLoopResultBuilder]: At program point L654(line 654) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2022-12-14 08:11:25,600 INFO L899 garLoopResultBuilder]: For program point L654-1(lines 635 659) no Hoare annotation was computed. [2022-12-14 08:11:25,600 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 878 889) no Hoare annotation was computed. [2022-12-14 08:11:25,600 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 878 889) the Hoare annotation is: true [2022-12-14 08:11:25,600 INFO L902 garLoopResultBuilder]: At program point L750(line 750) the Hoare annotation is: true [2022-12-14 08:11:25,600 INFO L899 garLoopResultBuilder]: For program point L750-1(line 750) no Hoare annotation was computed. [2022-12-14 08:11:25,600 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 745 755) no Hoare annotation was computed. [2022-12-14 08:11:25,600 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 745 755) the Hoare annotation is: true [2022-12-14 08:11:25,603 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:11:25,604 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 08:11:25,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 08:11:25 BoogieIcfgContainer [2022-12-14 08:11:25,621 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 08:11:25,621 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 08:11:25,621 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 08:11:25,622 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 08:11:25,622 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:11:01" (3/4) ... [2022-12-14 08:11:25,625 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 08:11:25,630 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-12-14 08:11:25,630 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-12-14 08:11:25,630 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-12-14 08:11:25,630 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-12-14 08:11:25,630 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-12-14 08:11:25,630 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-12-14 08:11:25,631 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-12-14 08:11:25,631 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-12-14 08:11:25,631 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-12-14 08:11:25,631 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-12-14 08:11:25,638 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 50 nodes and edges [2022-12-14 08:11:25,638 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-12-14 08:11:25,638 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-14 08:11:25,639 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 08:11:25,639 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 08:11:25,658 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == \old(pumpRunning) || 0 == systemActive) && (!(\old(pumpRunning) == 0) || pumpRunning == 0)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) [2022-12-14 08:11:25,659 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((pumpRunning == 0 && tmp == methaneLevelCritical) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || ((!(waterLevel == 1) && methaneLevelCritical == 0) && pumpRunning == 1)) || ((pumpRunning == \old(pumpRunning) && methaneLevelCritical == 0) && tmp == methaneLevelCritical)) || 0 == systemActive) && ((!(\old(pumpRunning) == 1) || tmp == methaneLevelCritical) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1)) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-12-14 08:11:25,659 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) && ((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive) [2022-12-14 08:11:25,659 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive)) && (((((pumpRunning == 0 && tmp == methaneLevelCritical) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || ((!(waterLevel == 1) && methaneLevelCritical == 0) && pumpRunning == 1)) || ((pumpRunning == \old(pumpRunning) && methaneLevelCritical == 0) && tmp == methaneLevelCritical)) || 0 == systemActive)) && ((tmp == 0 || !(methaneLevelCritical == 0)) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0))) && ((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || !(tmp == 0))) && ((!(\old(pumpRunning) == 1) || tmp == methaneLevelCritical) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) [2022-12-14 08:11:25,659 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) && ((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive) [2022-12-14 08:11:25,659 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && tmp == 0)) || !(methaneLevelCritical == 0)) || !(0 == systemActive)) && ((((((((pumpRunning == \old(pumpRunning) && tmp == 0) && methaneLevelCritical == 0) && tmp == methaneLevelCritical) && !(0 == systemActive)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && !(0 == systemActive))) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && !(0 == systemActive))) || ((tmp == 0 && ((pumpRunning == 0 && !(methaneLevelCritical == 0)) || (methaneLevelCritical == 0 && pumpRunning == 1))) && pumpRunning == 1)) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || (tmp___0 == 0 && !(tmp == 0)))) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || methaneLevelCritical == 0)) && ((((((((pumpRunning == \old(pumpRunning) && tmp == 0) && methaneLevelCritical == 0) && tmp == methaneLevelCritical) && !(0 == systemActive)) || !(methaneLevelCritical == 0)) || ((pumpRunning == 0 && tmp == 0) && !(0 == systemActive))) || 0 == systemActive) || (!(waterLevel == 1) && ((pumpRunning == 0 && !(methaneLevelCritical == 0)) || (methaneLevelCritical == 0 && pumpRunning == 1))))) && ((!(\old(pumpRunning) == 1) || tmp == methaneLevelCritical) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) [2022-12-14 08:11:25,659 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && methaneLevelCritical == aux-isMethaneAlarm()-aux)) || 0 == systemActive) && ((!(methaneLevelCritical == 0) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || 0 == systemActive)) && ((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || 0 == systemActive) [2022-12-14 08:11:25,660 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) && 0 == systemActive [2022-12-14 08:11:25,685 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1c8e5c-49b0-4f8c-acd4-ead5b83efe1c/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 08:11:25,685 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 08:11:25,686 INFO L158 Benchmark]: Toolchain (without parser) took 24940.27ms. Allocated memory was 132.1MB in the beginning and 232.8MB in the end (delta: 100.7MB). Free memory was 96.2MB in the beginning and 125.6MB in the end (delta: -29.4MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. [2022-12-14 08:11:25,686 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 132.1MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:11:25,686 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.62ms. Allocated memory is still 132.1MB. Free memory was 95.7MB in the beginning and 76.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 08:11:25,687 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.97ms. Allocated memory is still 132.1MB. Free memory was 76.8MB in the beginning and 74.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:11:25,687 INFO L158 Benchmark]: Boogie Preprocessor took 19.70ms. Allocated memory is still 132.1MB. Free memory was 74.8MB in the beginning and 73.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:11:25,687 INFO L158 Benchmark]: RCFGBuilder took 453.33ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 73.2MB in the beginning and 129.3MB in the end (delta: -56.1MB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB. [2022-12-14 08:11:25,688 INFO L158 Benchmark]: TraceAbstraction took 24050.36ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 128.6MB in the beginning and 131.9MB in the end (delta: -3.3MB). Peak memory consumption was 142.7MB. Max. memory is 16.1GB. [2022-12-14 08:11:25,688 INFO L158 Benchmark]: Witness Printer took 64.07ms. Allocated memory is still 232.8MB. Free memory was 130.9MB in the beginning and 125.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 08:11:25,690 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 132.1MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 314.62ms. Allocated memory is still 132.1MB. Free memory was 95.7MB in the beginning and 76.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.97ms. Allocated memory is still 132.1MB. Free memory was 76.8MB in the beginning and 74.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.70ms. Allocated memory is still 132.1MB. Free memory was 74.8MB in the beginning and 73.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 453.33ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 73.2MB in the beginning and 129.3MB in the end (delta: -56.1MB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB. * TraceAbstraction took 24050.36ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 128.6MB in the beginning and 131.9MB in the end (delta: -3.3MB). Peak memory consumption was 142.7MB. Max. memory is 16.1GB. * Witness Printer took 64.07ms. Allocated memory is still 232.8MB. Free memory was 130.9MB in the beginning and 125.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: 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 11 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 24.0s, OverallIterations: 9, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2065 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2039 mSDsluCounter, 3064 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2301 mSDsCounter, 1327 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5540 IncrementalHoareTripleChecker+Invalid, 6867 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1327 mSolverCounterUnsat, 763 mSDtfsCounter, 5540 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 315 GetRequests, 130 SyntacticMatches, 4 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7628 ImplicationChecksByTransitivity, 12.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=857occurred in iteration=8, InterpolantAutomatonStates: 142, 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, 9 MinimizatonAttempts, 511 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 1637 PreInvPairs, 1944 NumberOfFragments, 1097 HoareAnnotationTreeSize, 1637 FomulaSimplifications, 4625 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 45 FomulaSimplificationsInter, 34393 FormulaSimplificationTreeSizeReductionInter, 3.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 377 NumberOfCodeBlocks, 377 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 413 ConstructedInterpolants, 0 QuantifiedInterpolants, 1126 SizeOfPredicates, 10 NumberOfNonLiveVariables, 231 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 46/50 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: 54]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) && 0 == systemActive - InvariantResult [Line: 578]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 687]: Loop Invariant Derived loop invariant: (((((((pumpRunning == 0 && tmp == methaneLevelCritical) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || ((!(waterLevel == 1) && methaneLevelCritical == 0) && pumpRunning == 1)) || ((pumpRunning == \old(pumpRunning) && methaneLevelCritical == 0) && tmp == methaneLevelCritical)) || 0 == systemActive) && ((!(\old(pumpRunning) == 1) || tmp == methaneLevelCritical) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1)) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: ((((((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && tmp == 0)) || !(methaneLevelCritical == 0)) || !(0 == systemActive)) && ((((((((pumpRunning == \old(pumpRunning) && tmp == 0) && methaneLevelCritical == 0) && tmp == methaneLevelCritical) && !(0 == systemActive)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && !(0 == systemActive))) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && !(0 == systemActive))) || ((tmp == 0 && ((pumpRunning == 0 && !(methaneLevelCritical == 0)) || (methaneLevelCritical == 0 && pumpRunning == 1))) && pumpRunning == 1)) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || (tmp___0 == 0 && !(tmp == 0)))) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || methaneLevelCritical == 0)) && ((((((((pumpRunning == \old(pumpRunning) && tmp == 0) && methaneLevelCritical == 0) && tmp == methaneLevelCritical) && !(0 == systemActive)) || !(methaneLevelCritical == 0)) || ((pumpRunning == 0 && tmp == 0) && !(0 == systemActive))) || 0 == systemActive) || (!(waterLevel == 1) && ((pumpRunning == 0 && !(methaneLevelCritical == 0)) || (methaneLevelCritical == 0 && pumpRunning == 1))))) && ((!(\old(pumpRunning) == 1) || tmp == methaneLevelCritical) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) - InvariantResult [Line: 976]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 639]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) && ((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive) - InvariantResult [Line: 843]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && tmp == 1) && splverifierCounter == 0 - InvariantResult [Line: 725]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && methaneLevelCritical == aux-isMethaneAlarm()-aux)) || 0 == systemActive) && ((!(methaneLevelCritical == 0) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || 0 == systemActive)) && ((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || 0 == systemActive) - InvariantResult [Line: 665]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) && ((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive) - InvariantResult [Line: 1007]: Loop Invariant Derived loop invariant: ((tmp == 1 && splverifierCounter == 0) && !(0 == systemActive)) || ((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) - InvariantResult [Line: 107]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive)) && (((((pumpRunning == 0 && tmp == methaneLevelCritical) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || ((!(waterLevel == 1) && methaneLevelCritical == 0) && pumpRunning == 1)) || ((pumpRunning == \old(pumpRunning) && methaneLevelCritical == 0) && tmp == methaneLevelCritical)) || 0 == systemActive)) && ((tmp == 0 || !(methaneLevelCritical == 0)) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0))) && ((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || !(tmp == 0))) && ((!(\old(pumpRunning) == 1) || tmp == methaneLevelCritical) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 503]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 578]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methaneLevelCritical == 0) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 977]: Loop Invariant Derived loop invariant: (((methaneLevelCritical == 0 && tmp == 1) && splverifierCounter == 0) && !(0 == systemActive)) || ((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: ((pumpRunning == \old(pumpRunning) || 0 == systemActive) && (!(\old(pumpRunning) == 0) || pumpRunning == 0)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) - InvariantResult [Line: 967]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-14 08:11:25,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1c8e5c-49b0-4f8c-acd4-ead5b83efe1c/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