./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW --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 9e3065d54459a1af9237785e443ea1bc130aed8710eaae31e283e0fdf62db72d --- 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-4e7fbc6 [2022-11-23 14:10:16,631 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:10:16,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:10:16,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:10:16,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:10:16,672 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:10:16,676 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:10:16,679 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:10:16,681 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:10:16,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:10:16,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:10:16,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:10:16,691 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:10:16,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:10:16,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:10:16,698 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:10:16,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:10:16,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:10:16,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:10:16,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:10:16,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:10:16,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:10:16,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:10:16,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:10:16,726 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:10:16,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:10:16,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:10:16,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:10:16,732 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:10:16,733 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:10:16,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:10:16,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:10:16,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:10:16,738 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:10:16,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:10:16,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:10:16,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:10:16,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:10:16,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:10:16,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:10:16,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:10:16,744 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:10:16,785 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:10:16,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:10:16,786 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:10:16,786 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:10:16,787 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:10:16,787 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:10:16,787 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:10:16,788 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:10:16,788 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:10:16,788 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:10:16,789 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:10:16,790 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:10:16,790 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:10:16,790 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:10:16,790 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:10:16,790 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:10:16,791 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:10:16,791 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:10:16,792 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:10:16,792 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:10:16,792 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:10:16,792 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:10:16,793 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:10:16,793 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:10:16,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:10:16,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:10:16,794 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:10:16,794 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:10:16,794 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:10:16,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:10:16,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:10:16,795 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:10:16,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:10:16,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:10:16,796 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:10:16,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:10:16,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:10:16,797 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:10:16,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:10:16,797 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:10:16,798 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:10:16,798 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_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e3065d54459a1af9237785e443ea1bc130aed8710eaae31e283e0fdf62db72d [2022-11-23 14:10:17,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:10:17,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:10:17,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:10:17,107 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:10:17,107 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:10:17,109 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c [2022-11-23 14:10:20,158 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:10:20,374 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:10:20,379 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c [2022-11-23 14:10:20,394 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW/data/dc51513e4/26456d82c49d43d7ba98a8cad6b91156/FLAG0cd495594 [2022-11-23 14:10:20,418 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW/data/dc51513e4/26456d82c49d43d7ba98a8cad6b91156 [2022-11-23 14:10:20,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:10:20,422 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:10:20,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:10:20,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:10:20,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:10:20,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:10:20" (1/1) ... [2022-11-23 14:10:20,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@618cab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:10:20, skipping insertion in model container [2022-11-23 14:10:20,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:10:20" (1/1) ... [2022-11-23 14:10:20,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:10:20,503 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:10:20,823 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_bcc35b08-588c-425f-afdb-fb664efbd694/sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c[13371,13384] [2022-11-23 14:10:20,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:10:20,861 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:10:20,955 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_bcc35b08-588c-425f-afdb-fb664efbd694/sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c[13371,13384] [2022-11-23 14:10:20,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:10:20,988 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:10:20,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:10:20 WrapperNode [2022-11-23 14:10:20,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:10:20,990 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:10:20,990 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:10:20,990 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:10:20,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:10:20" (1/1) ... [2022-11-23 14:10:21,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:10:20" (1/1) ... [2022-11-23 14:10:21,063 INFO L138 Inliner]: procedures = 58, calls = 105, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 220 [2022-11-23 14:10:21,064 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:10:21,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:10:21,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:10:21,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:10:21,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:10:20" (1/1) ... [2022-11-23 14:10:21,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:10:20" (1/1) ... [2022-11-23 14:10:21,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:10:20" (1/1) ... [2022-11-23 14:10:21,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:10:20" (1/1) ... [2022-11-23 14:10:21,099 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:10:20" (1/1) ... [2022-11-23 14:10:21,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:10:20" (1/1) ... [2022-11-23 14:10:21,118 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:10:20" (1/1) ... [2022-11-23 14:10:21,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:10:20" (1/1) ... [2022-11-23 14:10:21,121 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:10:21,122 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:10:21,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:10:21,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:10:21,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:10:20" (1/1) ... [2022-11-23 14:10:21,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:10:21,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:10:21,164 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:10:21,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:10:21,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:10:21,211 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-23 14:10:21,211 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-23 14:10:21,212 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-23 14:10:21,212 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-23 14:10:21,212 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-23 14:10:21,212 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-23 14:10:21,212 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-23 14:10:21,213 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-23 14:10:21,213 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 14:10:21,213 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 14:10:21,213 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-23 14:10:21,213 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-23 14:10:21,214 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-23 14:10:21,214 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-23 14:10:21,214 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-23 14:10:21,214 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-23 14:10:21,214 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-23 14:10:21,214 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-23 14:10:21,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:10:21,215 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-23 14:10:21,215 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-23 14:10:21,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:10:21,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:10:21,301 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:10:21,304 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:10:21,698 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:10:21,866 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:10:21,866 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 14:10:21,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:10:21 BoogieIcfgContainer [2022-11-23 14:10:21,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:10:21,871 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:10:21,871 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:10:21,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:10:21,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:10:20" (1/3) ... [2022-11-23 14:10:21,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7efe3b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:10:21, skipping insertion in model container [2022-11-23 14:10:21,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:10:20" (2/3) ... [2022-11-23 14:10:21,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7efe3b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:10:21, skipping insertion in model container [2022-11-23 14:10:21,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:10:21" (3/3) ... [2022-11-23 14:10:21,887 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product61.cil.c [2022-11-23 14:10:21,902 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:10:21,902 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:10:21,948 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:10:21,955 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;@40903012, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:10:21,955 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:10:21,958 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 45 states have (on average 1.4) internal successors, (63), 55 states have internal predecessors, (63), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-23 14:10:21,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 14:10:21,968 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:21,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:10:21,969 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:10:21,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:21,975 INFO L85 PathProgramCache]: Analyzing trace with hash -604387280, now seen corresponding path program 1 times [2022-11-23 14:10:21,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:21,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545715197] [2022-11-23 14:10:21,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:21,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:22,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:22,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:10:22,156 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:22,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545715197] [2022-11-23 14:10:22,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545715197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:22,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:22,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:10:22,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724703554] [2022-11-23 14:10:22,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:22,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:10:22,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:22,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:10:22,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:10:22,197 INFO L87 Difference]: Start difference. First operand has 75 states, 45 states have (on average 1.4) internal successors, (63), 55 states have internal predecessors, (63), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 14:10:22,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:22,267 INFO L93 Difference]: Finished difference Result 148 states and 199 transitions. [2022-11-23 14:10:22,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:10:22,270 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-23 14:10:22,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:22,282 INFO L225 Difference]: With dead ends: 148 [2022-11-23 14:10:22,283 INFO L226 Difference]: Without dead ends: 70 [2022-11-23 14:10:22,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:10:22,294 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:22,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:10:22,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-23 14:10:22,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-11-23 14:10:22,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 42 states have (on average 1.3095238095238095) internal successors, (55), 51 states have internal predecessors, (55), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-23 14:10:22,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 90 transitions. [2022-11-23 14:10:22,361 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 90 transitions. Word has length 17 [2022-11-23 14:10:22,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:22,363 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 90 transitions. [2022-11-23 14:10:22,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 14:10:22,363 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 90 transitions. [2022-11-23 14:10:22,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-23 14:10:22,368 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:22,368 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:10:22,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:10:22,369 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:10:22,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:22,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1152297191, now seen corresponding path program 1 times [2022-11-23 14:10:22,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:22,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880039229] [2022-11-23 14:10:22,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:22,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:22,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:22,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:10:22,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:22,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880039229] [2022-11-23 14:10:22,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880039229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:22,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:22,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:10:22,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597552043] [2022-11-23 14:10:22,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:22,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:10:22,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:22,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:10:22,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:10:22,499 INFO L87 Difference]: Start difference. First operand 70 states and 90 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 14:10:22,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:22,569 INFO L93 Difference]: Finished difference Result 117 states and 151 transitions. [2022-11-23 14:10:22,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:10:22,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-23 14:10:22,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:22,573 INFO L225 Difference]: With dead ends: 117 [2022-11-23 14:10:22,574 INFO L226 Difference]: Without dead ends: 62 [2022-11-23 14:10:22,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:10:22,577 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 7 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:22,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 119 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:10:22,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-23 14:10:22,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-11-23 14:10:22,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 46 states have internal predecessors, (49), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-23 14:10:22,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 79 transitions. [2022-11-23 14:10:22,596 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 79 transitions. Word has length 18 [2022-11-23 14:10:22,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:22,597 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 79 transitions. [2022-11-23 14:10:22,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 14:10:22,597 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 79 transitions. [2022-11-23 14:10:22,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-23 14:10:22,603 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:22,603 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:10:22,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:10:22,604 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:10:22,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:22,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1464757788, now seen corresponding path program 1 times [2022-11-23 14:10:22,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:22,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782656937] [2022-11-23 14:10:22,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:22,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:22,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:22,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:10:22,701 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:22,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782656937] [2022-11-23 14:10:22,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782656937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:22,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:22,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:10:22,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499359615] [2022-11-23 14:10:22,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:22,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:10:22,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:22,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:10:22,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:10:22,704 INFO L87 Difference]: Start difference. First operand 62 states and 79 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 14:10:22,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:22,745 INFO L93 Difference]: Finished difference Result 122 states and 157 transitions. [2022-11-23 14:10:22,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:10:22,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-11-23 14:10:22,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:22,747 INFO L225 Difference]: With dead ends: 122 [2022-11-23 14:10:22,747 INFO L226 Difference]: Without dead ends: 62 [2022-11-23 14:10:22,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:10:22,749 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 68 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:22,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 62 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:10:22,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-23 14:10:22,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-11-23 14:10:22,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 46 states have internal predecessors, (48), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-23 14:10:22,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 78 transitions. [2022-11-23 14:10:22,761 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 78 transitions. Word has length 20 [2022-11-23 14:10:22,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:22,761 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 78 transitions. [2022-11-23 14:10:22,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 14:10:22,762 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 78 transitions. [2022-11-23 14:10:22,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:10:22,763 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:22,763 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, 1, 1, 1, 1, 1] [2022-11-23 14:10:22,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:10:22,764 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:10:22,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:22,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1074089259, now seen corresponding path program 1 times [2022-11-23 14:10:22,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:22,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038971969] [2022-11-23 14:10:22,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:22,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:22,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:10:22,905 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:22,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038971969] [2022-11-23 14:10:22,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038971969] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:22,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:22,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:10:22,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492444300] [2022-11-23 14:10:22,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:22,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:10:22,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:22,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:10:22,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:10:22,908 INFO L87 Difference]: Start difference. First operand 62 states and 78 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 14:10:23,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:23,260 INFO L93 Difference]: Finished difference Result 195 states and 244 transitions. [2022-11-23 14:10:23,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:10:23,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 31 [2022-11-23 14:10:23,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:23,266 INFO L225 Difference]: With dead ends: 195 [2022-11-23 14:10:23,266 INFO L226 Difference]: Without dead ends: 135 [2022-11-23 14:10:23,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:10:23,277 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 134 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:23,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 184 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:10:23,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-11-23 14:10:23,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 129. [2022-11-23 14:10:23,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 83 states have (on average 1.2409638554216869) internal successors, (103), 91 states have internal predecessors, (103), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2022-11-23 14:10:23,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 154 transitions. [2022-11-23 14:10:23,318 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 154 transitions. Word has length 31 [2022-11-23 14:10:23,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:23,318 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 154 transitions. [2022-11-23 14:10:23,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 14:10:23,319 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 154 transitions. [2022-11-23 14:10:23,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-23 14:10:23,322 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:23,322 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:10:23,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:10:23,346 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:10:23,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:23,357 INFO L85 PathProgramCache]: Analyzing trace with hash 481504985, now seen corresponding path program 1 times [2022-11-23 14:10:23,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:23,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101065681] [2022-11-23 14:10:23,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:23,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:23,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:10:23,483 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:23,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101065681] [2022-11-23 14:10:23,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101065681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:23,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:23,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 14:10:23,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477143226] [2022-11-23 14:10:23,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:23,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:10:23,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:23,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:10:23,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:10:23,486 INFO L87 Difference]: Start difference. First operand 129 states and 154 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-23 14:10:23,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:23,679 INFO L93 Difference]: Finished difference Result 379 states and 457 transitions. [2022-11-23 14:10:23,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:10:23,680 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2022-11-23 14:10:23,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:23,687 INFO L225 Difference]: With dead ends: 379 [2022-11-23 14:10:23,687 INFO L226 Difference]: Without dead ends: 252 [2022-11-23 14:10:23,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:10:23,689 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 55 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:23,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 331 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:10:23,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2022-11-23 14:10:23,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 240. [2022-11-23 14:10:23,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 153 states have (on average 1.1830065359477124) internal successors, (181), 166 states have internal predecessors, (181), 42 states have call successors, (42), 34 states have call predecessors, (42), 44 states have return successors, (56), 46 states have call predecessors, (56), 42 states have call successors, (56) [2022-11-23 14:10:23,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 279 transitions. [2022-11-23 14:10:23,744 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 279 transitions. Word has length 36 [2022-11-23 14:10:23,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:23,745 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 279 transitions. [2022-11-23 14:10:23,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-23 14:10:23,745 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 279 transitions. [2022-11-23 14:10:23,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-23 14:10:23,746 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:23,747 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:10:23,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:10:23,747 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:10:23,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:23,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1896537818, now seen corresponding path program 1 times [2022-11-23 14:10:23,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:23,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56223824] [2022-11-23 14:10:23,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:23,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:23,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:10:23,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:23,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56223824] [2022-11-23 14:10:23,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56223824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:23,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:23,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:10:23,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836666888] [2022-11-23 14:10:23,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:23,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:10:23,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:23,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:10:23,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:10:23,872 INFO L87 Difference]: Start difference. First operand 240 states and 279 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 14:10:24,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:24,144 INFO L93 Difference]: Finished difference Result 375 states and 441 transitions. [2022-11-23 14:10:24,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:10:24,144 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 39 [2022-11-23 14:10:24,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:24,146 INFO L225 Difference]: With dead ends: 375 [2022-11-23 14:10:24,147 INFO L226 Difference]: Without dead ends: 248 [2022-11-23 14:10:24,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:10:24,148 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 79 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:24,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 183 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:10:24,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-11-23 14:10:24,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 238. [2022-11-23 14:10:24,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 151 states have (on average 1.1589403973509933) internal successors, (175), 164 states have internal predecessors, (175), 42 states have call successors, (42), 34 states have call predecessors, (42), 44 states have return successors, (56), 46 states have call predecessors, (56), 42 states have call successors, (56) [2022-11-23 14:10:24,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 273 transitions. [2022-11-23 14:10:24,180 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 273 transitions. Word has length 39 [2022-11-23 14:10:24,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:24,181 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 273 transitions. [2022-11-23 14:10:24,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 14:10:24,181 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 273 transitions. [2022-11-23 14:10:24,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-23 14:10:24,182 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:24,183 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] [2022-11-23 14:10:24,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 14:10:24,183 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:10:24,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:24,184 INFO L85 PathProgramCache]: Analyzing trace with hash -975857525, now seen corresponding path program 1 times [2022-11-23 14:10:24,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:24,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233778865] [2022-11-23 14:10:24,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:24,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:24,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:24,285 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:10:24,285 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:24,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233778865] [2022-11-23 14:10:24,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233778865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:24,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:24,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:10:24,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488727129] [2022-11-23 14:10:24,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:24,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:10:24,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:24,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:10:24,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:10:24,288 INFO L87 Difference]: Start difference. First operand 238 states and 273 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 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) [2022-11-23 14:10:24,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:24,409 INFO L93 Difference]: Finished difference Result 343 states and 402 transitions. [2022-11-23 14:10:24,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:10:24,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 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 44 [2022-11-23 14:10:24,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:24,413 INFO L225 Difference]: With dead ends: 343 [2022-11-23 14:10:24,413 INFO L226 Difference]: Without dead ends: 341 [2022-11-23 14:10:24,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:10:24,414 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 54 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:24,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 137 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:10:24,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2022-11-23 14:10:24,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 335. [2022-11-23 14:10:24,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 210 states have (on average 1.161904761904762) internal successors, (244), 229 states have internal predecessors, (244), 61 states have call successors, (61), 49 states have call predecessors, (61), 63 states have return successors, (86), 65 states have call predecessors, (86), 61 states have call successors, (86) [2022-11-23 14:10:24,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 391 transitions. [2022-11-23 14:10:24,484 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 391 transitions. Word has length 44 [2022-11-23 14:10:24,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:24,485 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 391 transitions. [2022-11-23 14:10:24,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 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) [2022-11-23 14:10:24,486 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 391 transitions. [2022-11-23 14:10:24,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-23 14:10:24,490 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:24,491 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:10:24,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 14:10:24,491 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:10:24,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:24,492 INFO L85 PathProgramCache]: Analyzing trace with hash 99191434, now seen corresponding path program 1 times [2022-11-23 14:10:24,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:24,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222894363] [2022-11-23 14:10:24,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:24,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:25,172 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 18 proven. 17 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 14:10:25,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:25,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222894363] [2022-11-23 14:10:25,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222894363] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:10:25,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343886663] [2022-11-23 14:10:25,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:25,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:10:25,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:10:25,183 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:10:25,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:10:25,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:25,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-23 14:10:25,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:10:25,404 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 14:10:25,404 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:10:25,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343886663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:25,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 14:10:25,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2022-11-23 14:10:25,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101162533] [2022-11-23 14:10:25,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:25,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:10:25,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:25,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:10:25,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-11-23 14:10:25,406 INFO L87 Difference]: Start difference. First operand 335 states and 391 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 14:10:25,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:25,560 INFO L93 Difference]: Finished difference Result 667 states and 796 transitions. [2022-11-23 14:10:25,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:10:25,561 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 84 [2022-11-23 14:10:25,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:25,563 INFO L225 Difference]: With dead ends: 667 [2022-11-23 14:10:25,563 INFO L226 Difference]: Without dead ends: 334 [2022-11-23 14:10:25,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-11-23 14:10:25,565 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 50 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:25,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 193 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:10:25,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-11-23 14:10:25,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 328. [2022-11-23 14:10:25,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 209 states have (on average 1.1483253588516746) internal successors, (240), 228 states have internal predecessors, (240), 59 states have call successors, (59), 49 states have call predecessors, (59), 59 states have return successors, (82), 62 states have call predecessors, (82), 59 states have call successors, (82) [2022-11-23 14:10:25,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 381 transitions. [2022-11-23 14:10:25,600 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 381 transitions. Word has length 84 [2022-11-23 14:10:25,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:25,600 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 381 transitions. [2022-11-23 14:10:25,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 14:10:25,601 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 381 transitions. [2022-11-23 14:10:25,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-23 14:10:25,603 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:25,603 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, 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] [2022-11-23 14:10:25,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:10:25,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:10:25,810 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:10:25,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:25,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1350633938, now seen corresponding path program 1 times [2022-11-23 14:10:25,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:25,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474629436] [2022-11-23 14:10:25,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:25,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:26,409 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 17 proven. 13 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 14:10:26,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:26,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474629436] [2022-11-23 14:10:26,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474629436] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:10:26,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330025606] [2022-11-23 14:10:26,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:26,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:10:26,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:10:26,412 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:10:26,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:10:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:26,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-23 14:10:26,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:10:26,744 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:10:26,744 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:10:26,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330025606] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:26,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 14:10:26,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [16] total 24 [2022-11-23 14:10:26,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846468785] [2022-11-23 14:10:26,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:26,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 14:10:26,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:26,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 14:10:26,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2022-11-23 14:10:26,751 INFO L87 Difference]: Start difference. First operand 328 states and 381 transitions. Second operand has 11 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 3 states have call successors, (14), 3 states have call predecessors, (14), 6 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-23 14:10:27,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:27,206 INFO L93 Difference]: Finished difference Result 663 states and 797 transitions. [2022-11-23 14:10:27,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-23 14:10:27,206 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 3 states have call successors, (14), 3 states have call predecessors, (14), 6 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) Word has length 88 [2022-11-23 14:10:27,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:27,211 INFO L225 Difference]: With dead ends: 663 [2022-11-23 14:10:27,211 INFO L226 Difference]: Without dead ends: 461 [2022-11-23 14:10:27,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=103, Invalid=889, Unknown=0, NotChecked=0, Total=992 [2022-11-23 14:10:27,214 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 58 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:27,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 662 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:10:27,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2022-11-23 14:10:27,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 448. [2022-11-23 14:10:27,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 286 states have (on average 1.132867132867133) internal successors, (324), 308 states have internal predecessors, (324), 81 states have call successors, (81), 67 states have call predecessors, (81), 80 states have return successors, (121), 85 states have call predecessors, (121), 81 states have call successors, (121) [2022-11-23 14:10:27,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 526 transitions. [2022-11-23 14:10:27,268 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 526 transitions. Word has length 88 [2022-11-23 14:10:27,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:27,268 INFO L495 AbstractCegarLoop]: Abstraction has 448 states and 526 transitions. [2022-11-23 14:10:27,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 3 states have call successors, (14), 3 states have call predecessors, (14), 6 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-23 14:10:27,269 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 526 transitions. [2022-11-23 14:10:27,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-23 14:10:27,273 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:27,273 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, 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] [2022-11-23 14:10:27,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:10:27,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:10:27,479 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:10:27,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:27,480 INFO L85 PathProgramCache]: Analyzing trace with hash 363693813, now seen corresponding path program 1 times [2022-11-23 14:10:27,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:27,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644616433] [2022-11-23 14:10:27,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:27,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:27,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:27,940 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 14:10:27,941 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:27,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644616433] [2022-11-23 14:10:27,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644616433] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:10:27,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874273195] [2022-11-23 14:10:27,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:27,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:10:27,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:10:27,943 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:10:27,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 14:10:28,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:28,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-23 14:10:28,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:10:28,215 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-23 14:10:28,216 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:10:28,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874273195] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:28,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 14:10:28,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [16] total 22 [2022-11-23 14:10:28,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197031342] [2022-11-23 14:10:28,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:28,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 14:10:28,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:28,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 14:10:28,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-11-23 14:10:28,220 INFO L87 Difference]: Start difference. First operand 448 states and 526 transitions. Second operand has 11 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (13), 5 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 14:10:28,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:28,708 INFO L93 Difference]: Finished difference Result 978 states and 1167 transitions. [2022-11-23 14:10:28,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 14:10:28,708 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (13), 5 states have call predecessors, (13), 2 states have call successors, (13) Word has length 91 [2022-11-23 14:10:28,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:28,710 INFO L225 Difference]: With dead ends: 978 [2022-11-23 14:10:28,710 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 14:10:28,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=109, Invalid=821, Unknown=0, NotChecked=0, Total=930 [2022-11-23 14:10:28,713 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 56 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:28,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 461 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:10:28,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 14:10:28,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 14:10:28,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:28,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 14:10:28,715 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 91 [2022-11-23 14:10:28,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:28,715 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 14:10:28,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (13), 5 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 14:10:28,716 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 14:10:28,716 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 14:10:28,718 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 14:10:28,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 14:10:28,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-23 14:10:28,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 14:10:32,040 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 919 926) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 1 ~systemActive~0)) (= |old(~pumpRunning~0)| 0)) [2022-11-23 14:10:32,041 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 919 926) no Hoare annotation was computed. [2022-11-23 14:10:32,041 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 809 815) no Hoare annotation was computed. [2022-11-23 14:10:32,041 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 809 815) the Hoare annotation is: true [2022-11-23 14:10:32,041 INFO L895 garLoopResultBuilder]: At program point L857(line 857) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) .cse1 (not (= ~methAndRunningLastTime~0 0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2022-11-23 14:10:32,041 INFO L895 garLoopResultBuilder]: At program point L853(line 853) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) .cse1 (not (= ~methAndRunningLastTime~0 0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2022-11-23 14:10:32,041 INFO L899 garLoopResultBuilder]: For program point L851(lines 851 859) no Hoare annotation was computed. [2022-11-23 14:10:32,042 INFO L895 garLoopResultBuilder]: At program point L847(lines 847 864) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) (= ~pumpRunning~0 0) .cse1 (not (= ~methAndRunningLastTime~0 0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2022-11-23 14:10:32,042 INFO L895 garLoopResultBuilder]: At program point L862(line 862) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not .cse1) (= ~pumpRunning~0 0) .cse0 (not (= ~methAndRunningLastTime~0 0))))) [2022-11-23 14:10:32,042 INFO L899 garLoopResultBuilder]: For program point L862-1(lines 843 867) no Hoare annotation was computed. [2022-11-23 14:10:32,042 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 843 867) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) (= ~pumpRunning~0 0) .cse1 (not (= ~methAndRunningLastTime~0 0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2022-11-23 14:10:32,042 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 843 867) no Hoare annotation was computed. [2022-11-23 14:10:32,042 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 703 714) the Hoare annotation is: (let ((.cse2 (not (= 1 ~systemActive~0))) (.cse0 (= |old(~methaneLevelCritical~0)| 0)) (.cse1 (= ~methaneLevelCritical~0 0))) (and (or (not .cse0) .cse1 .cse2 (not (= ~methAndRunningLastTime~0 0))) (or (= ~pumpRunning~0 0) .cse2 .cse0 (not .cse1)))) [2022-11-23 14:10:32,043 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 703 714) no Hoare annotation was computed. [2022-11-23 14:10:32,043 INFO L899 garLoopResultBuilder]: For program point L796-1(lines 796 802) no Hoare annotation was computed. [2022-11-23 14:10:32,043 INFO L895 garLoopResultBuilder]: At program point L883(line 883) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or (and .cse0 (= ~methaneLevelCritical~0 0) (= |timeShift_processEnvironment_~tmp~8#1| ~methaneLevelCritical~0)) .cse1 (= |old(~pumpRunning~0)| 0)) (or (not (= |old(~methAndRunningLastTime~0)| 0)) .cse1 (and .cse0 (= ~methAndRunningLastTime~0 0) (not (= ~pumpRunning~0 0)))))) [2022-11-23 14:10:32,043 INFO L895 garLoopResultBuilder]: At program point L879(line 879) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~pumpRunning~0)| 0))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= |timeShift_processEnvironment_~tmp~8#1| 0)) (= |timeShift_processEnvironment_~tmp~8#1| ~methaneLevelCritical~0))) (or (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0 (and (not .cse1) (= ~methAndRunningLastTime~0 0))))) [2022-11-23 14:10:32,043 INFO L895 garLoopResultBuilder]: At program point L875(line 875) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0 (and .cse1 (= ~methAndRunningLastTime~0 0) (not (= ~pumpRunning~0 0)))) (or .cse1 .cse0 (= |old(~pumpRunning~0)| 0)))) [2022-11-23 14:10:32,043 INFO L899 garLoopResultBuilder]: For program point L875-1(line 875) no Hoare annotation was computed. [2022-11-23 14:10:32,044 INFO L899 garLoopResultBuilder]: For program point L74(lines 74 84) no Hoare annotation was computed. [2022-11-23 14:10:32,044 INFO L895 garLoopResultBuilder]: At program point L70(lines 70 87) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~0#1| ~methaneLevelCritical~0)) (.cse4 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse5 (= ~methAndRunningLastTime~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (let ((.cse1 (= |timeShift_processEnvironment_~tmp~8#1| ~methaneLevelCritical~0))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~0#1| 0)) .cse2 (and .cse3 .cse0 .cse1) (= |old(~pumpRunning~0)| 0))) (or .cse4 .cse2 (and .cse5 .cse0) (and .cse3 .cse0)) (or .cse4 .cse5 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2022-11-23 14:10:32,044 INFO L895 garLoopResultBuilder]: At program point L70-1(lines 62 90) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse3 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~0#1| ~methaneLevelCritical~0)) (.cse5 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (let ((.cse4 (= |timeShift_processEnvironment_~tmp~8#1| ~methaneLevelCritical~0))) (or .cse0 (and .cse1 .cse2 .cse3 .cse4) (= |old(~pumpRunning~0)| 0) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 .cse3 .cse4 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~0#1| 0)))) (or .cse5 .cse0 (and .cse2 .cse3) (and (not .cse1) .cse3 (= ~pumpRunning~0 |timeShift___utac_acc__Specification2_spec__2_~tmp___0~0#1|))) (or .cse5 .cse2 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2022-11-23 14:10:32,044 INFO L895 garLoopResultBuilder]: At program point L888(line 888) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (= |old(~pumpRunning~0)| 0)) (or (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))))) [2022-11-23 14:10:32,045 INFO L895 garLoopResultBuilder]: At program point L888-1(lines 869 893) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~pumpRunning~0)| 0))) (and (or (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) .cse0) (let ((.cse2 (= |timeShift_processEnvironment_~tmp~8#1| ~methaneLevelCritical~0))) (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2) (and .cse3 .cse2))) (or .cse3 (= ~methaneLevelCritical~0 0) .cse0 .cse1))) [2022-11-23 14:10:32,045 INFO L899 garLoopResultBuilder]: For program point L789-1(lines 788 807) no Hoare annotation was computed. [2022-11-23 14:10:32,045 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 81) no Hoare annotation was computed. [2022-11-23 14:10:32,045 INFO L895 garLoopResultBuilder]: At program point L567(line 567) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (= |old(~pumpRunning~0)| 0)) (or (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0))) [2022-11-23 14:10:32,045 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 785 808) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 (= |old(~pumpRunning~0)| 0)) (or (not (= |old(~methAndRunningLastTime~0)| 0)) .cse1 (and .cse0 (= ~methAndRunningLastTime~0 0))))) [2022-11-23 14:10:32,045 INFO L899 garLoopResultBuilder]: For program point L877(lines 877 885) no Hoare annotation was computed. [2022-11-23 14:10:32,045 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 785 808) no Hoare annotation was computed. [2022-11-23 14:10:32,045 INFO L899 garLoopResultBuilder]: For program point L873(lines 873 890) no Hoare annotation was computed. [2022-11-23 14:10:32,046 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 567) no Hoare annotation was computed. [2022-11-23 14:10:32,046 INFO L895 garLoopResultBuilder]: At program point L68(line 68) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~pumpRunning~0)| 0))) (and (or (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) .cse0) (let ((.cse2 (= |timeShift_processEnvironment_~tmp~8#1| ~methaneLevelCritical~0))) (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2) (and .cse3 .cse2))) (or .cse3 (= ~methaneLevelCritical~0 0) .cse0 .cse1))) [2022-11-23 14:10:32,046 INFO L899 garLoopResultBuilder]: For program point L68-1(line 68) no Hoare annotation was computed. [2022-11-23 14:10:32,046 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 94 123) no Hoare annotation was computed. [2022-11-23 14:10:32,046 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 94 123) the Hoare annotation is: true [2022-11-23 14:10:32,046 INFO L902 garLoopResultBuilder]: At program point L119(lines 94 123) the Hoare annotation is: true [2022-11-23 14:10:32,046 INFO L899 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2022-11-23 14:10:32,047 INFO L899 garLoopResultBuilder]: For program point L108(lines 108 112) no Hoare annotation was computed. [2022-11-23 14:10:32,047 INFO L902 garLoopResultBuilder]: At program point L108-1(lines 108 112) the Hoare annotation is: true [2022-11-23 14:10:32,047 INFO L902 garLoopResultBuilder]: At program point L104-2(lines 104 118) the Hoare annotation is: true [2022-11-23 14:10:32,047 INFO L902 garLoopResultBuilder]: At program point L100(line 100) the Hoare annotation is: true [2022-11-23 14:10:32,047 INFO L899 garLoopResultBuilder]: For program point L100-1(line 100) no Hoare annotation was computed. [2022-11-23 14:10:32,047 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 715 723) the Hoare annotation is: true [2022-11-23 14:10:32,047 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 715 723) no Hoare annotation was computed. [2022-11-23 14:10:32,047 INFO L895 garLoopResultBuilder]: At program point L663(lines 616 664) the Hoare annotation is: false [2022-11-23 14:10:32,048 INFO L899 garLoopResultBuilder]: For program point L618(lines 617 662) no Hoare annotation was computed. [2022-11-23 14:10:32,048 INFO L895 garLoopResultBuilder]: At program point L639(line 639) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (not (= ~pumpRunning~0 0)) .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (and (= ~methAndRunningLastTime~0 0) .cse0 .cse1))) [2022-11-23 14:10:32,048 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-23 14:10:32,048 INFO L895 garLoopResultBuilder]: At program point L660(lines 617 662) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (not (= ~pumpRunning~0 0)) .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (and (= ~methAndRunningLastTime~0 0) .cse0 .cse1))) [2022-11-23 14:10:32,048 INFO L899 garLoopResultBuilder]: For program point L627(lines 627 633) no Hoare annotation was computed. [2022-11-23 14:10:32,048 INFO L899 garLoopResultBuilder]: For program point L627-1(lines 627 633) no Hoare annotation was computed. [2022-11-23 14:10:32,048 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 14:10:32,048 INFO L895 garLoopResultBuilder]: At program point L653-2(lines 647 658) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~methAndRunningLastTime~0 0) .cse0 .cse1) (and (not (= ~pumpRunning~0 0)) .cse0 .cse1))) [2022-11-23 14:10:32,049 INFO L899 garLoopResultBuilder]: For program point L637(lines 637 643) no Hoare annotation was computed. [2022-11-23 14:10:32,049 INFO L899 garLoopResultBuilder]: For program point L637-1(lines 637 643) no Hoare annotation was computed. [2022-11-23 14:10:32,049 INFO L902 garLoopResultBuilder]: At program point L666(lines 607 670) the Hoare annotation is: true [2022-11-23 14:10:32,049 INFO L895 garLoopResultBuilder]: At program point L183(lines 183 190) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-11-23 14:10:32,049 INFO L895 garLoopResultBuilder]: At program point L629(line 629) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (not (= ~pumpRunning~0 0)) .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (and (= ~methAndRunningLastTime~0 0) .cse0 .cse1))) [2022-11-23 14:10:32,049 INFO L902 garLoopResultBuilder]: At program point L183-2(lines 183 190) the Hoare annotation is: true [2022-11-23 14:10:32,049 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 817 841) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) (= ~pumpRunning~0 0) .cse1 (not (= ~methAndRunningLastTime~0 0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2022-11-23 14:10:32,049 INFO L895 garLoopResultBuilder]: At program point L907(line 907) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not .cse1) (= ~pumpRunning~0 0) .cse0 (not (= ~methAndRunningLastTime~0 0))))) [2022-11-23 14:10:32,050 INFO L895 garLoopResultBuilder]: At program point L907-1(line 907) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not .cse1) (= ~pumpRunning~0 0) .cse0 (not (= ~methAndRunningLastTime~0 0))))) [2022-11-23 14:10:32,050 INFO L895 garLoopResultBuilder]: At program point L831(line 831) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not .cse1) (= ~pumpRunning~0 0) .cse0 (not (= ~methAndRunningLastTime~0 0))))) [2022-11-23 14:10:32,050 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 817 841) no Hoare annotation was computed. [2022-11-23 14:10:32,050 INFO L899 garLoopResultBuilder]: For program point L825(lines 825 833) no Hoare annotation was computed. [2022-11-23 14:10:32,050 INFO L895 garLoopResultBuilder]: At program point L821(lines 821 838) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) (= ~pumpRunning~0 0) .cse1 (not (= ~methAndRunningLastTime~0 0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2022-11-23 14:10:32,050 INFO L895 garLoopResultBuilder]: At program point L836(line 836) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) .cse1 (not (= ~methAndRunningLastTime~0 0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2022-11-23 14:10:32,050 INFO L899 garLoopResultBuilder]: For program point L836-1(lines 817 841) no Hoare annotation was computed. [2022-11-23 14:10:32,051 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 691 702) no Hoare annotation was computed. [2022-11-23 14:10:32,051 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 691 702) the Hoare annotation is: true [2022-11-23 14:10:32,051 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 927 937) the Hoare annotation is: true [2022-11-23 14:10:32,053 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 927 937) no Hoare annotation was computed. [2022-11-23 14:10:32,053 INFO L902 garLoopResultBuilder]: At program point L932(line 932) the Hoare annotation is: true [2022-11-23 14:10:32,053 INFO L899 garLoopResultBuilder]: For program point L932-1(line 932) no Hoare annotation was computed. [2022-11-23 14:10:32,056 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:10:32,059 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:10:32,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:10:32 BoogieIcfgContainer [2022-11-23 14:10:32,076 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:10:32,077 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:10:32,077 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:10:32,077 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:10:32,078 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:10:21" (3/4) ... [2022-11-23 14:10:32,081 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 14:10:32,091 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-23 14:10:32,091 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-23 14:10:32,091 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-23 14:10:32,091 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-23 14:10:32,092 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-23 14:10:32,092 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-23 14:10:32,092 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 14:10:32,092 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-23 14:10:32,092 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-23 14:10:32,093 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-23 14:10:32,100 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2022-11-23 14:10:32,104 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-23 14:10:32,104 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-23 14:10:32,105 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 14:10:32,105 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 14:10:32,135 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || \old(pumpRunning) == 0) && ((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0)) [2022-11-23 14:10:32,137 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) && (((!(1 == systemActive) || \old(pumpRunning) == 0) || (pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical)) || (pumpRunning == 0 && tmp == methaneLevelCritical))) && (((pumpRunning == 0 || methaneLevelCritical == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0) [2022-11-23 14:10:32,137 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) [2022-11-23 14:10:32,139 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical) && tmp == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && tmp == methaneLevelCritical)) || \old(pumpRunning) == 0) && (((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || (methAndRunningLastTime == 0 && tmp == methaneLevelCritical)) || (pumpRunning == 0 && tmp == methaneLevelCritical))) && (((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) [2022-11-23 14:10:32,139 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) [2022-11-23 14:10:32,139 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(1 == systemActive) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical)) || \old(pumpRunning) == 0) || ((((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical) && tmp == 0)) && (((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || (methAndRunningLastTime == 0 && tmp == methaneLevelCritical)) || ((!(pumpRunning == 0) && tmp == methaneLevelCritical) && pumpRunning == tmp___0))) && (((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) [2022-11-23 14:10:32,140 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) [2022-11-23 14:10:32,141 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(1 == systemActive) || \old(pumpRunning) == 0) && (!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) [2022-11-23 14:10:32,176 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 14:10:32,176 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:10:32,177 INFO L158 Benchmark]: Toolchain (without parser) took 11755.41ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 129.0MB in the beginning and 95.4MB in the end (delta: 33.5MB). Peak memory consumption was 72.0MB. Max. memory is 16.1GB. [2022-11-23 14:10:32,177 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 136.3MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:10:32,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 566.18ms. Allocated memory is still 176.2MB. Free memory was 129.0MB in the beginning and 110.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 14:10:32,178 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.12ms. Allocated memory is still 176.2MB. Free memory was 109.8MB in the beginning and 107.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:10:32,178 INFO L158 Benchmark]: Boogie Preprocessor took 56.89ms. Allocated memory is still 176.2MB. Free memory was 107.7MB in the beginning and 105.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:10:32,179 INFO L158 Benchmark]: RCFGBuilder took 747.07ms. Allocated memory is still 176.2MB. Free memory was 105.9MB in the beginning and 144.2MB in the end (delta: -38.4MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2022-11-23 14:10:32,179 INFO L158 Benchmark]: TraceAbstraction took 10205.29ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 144.2MB in the beginning and 101.7MB in the end (delta: 42.5MB). Peak memory consumption was 124.0MB. Max. memory is 16.1GB. [2022-11-23 14:10:32,179 INFO L158 Benchmark]: Witness Printer took 99.60ms. Allocated memory is still 211.8MB. Free memory was 100.7MB in the beginning and 95.4MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-23 14:10:32,181 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 136.3MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 566.18ms. Allocated memory is still 176.2MB. Free memory was 129.0MB in the beginning and 110.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.12ms. Allocated memory is still 176.2MB. Free memory was 109.8MB in the beginning and 107.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.89ms. Allocated memory is still 176.2MB. Free memory was 107.7MB in the beginning and 105.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 747.07ms. Allocated memory is still 176.2MB. Free memory was 105.9MB in the beginning and 144.2MB in the end (delta: -38.4MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. * TraceAbstraction took 10205.29ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 144.2MB in the beginning and 101.7MB in the end (delta: 42.5MB). Peak memory consumption was 124.0MB. Max. memory is 16.1GB. * Witness Printer took 99.60ms. Allocated memory is still 211.8MB. Free memory was 100.7MB in the beginning and 95.4MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 567]: 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, 75 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.1s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 587 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 561 mSDsluCounter, 2410 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1632 mSDsCounter, 137 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1461 IncrementalHoareTripleChecker+Invalid, 1598 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 137 mSolverCounterUnsat, 778 mSDtfsCounter, 1461 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 387 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=448occurred in iteration=9, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 53 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 42 LocationsWithAnnotation, 1131 PreInvPairs, 1317 NumberOfFragments, 930 HoareAnnotationTreeSize, 1131 FomulaSimplifications, 460 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 42 FomulaSimplificationsInter, 12762 FormulaSimplificationTreeSizeReductionInter, 2.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 731 NumberOfCodeBlocks, 731 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 718 ConstructedInterpolants, 0 QuantifiedInterpolants, 1754 SizeOfPredicates, 16 NumberOfNonLiveVariables, 1100 ConjunctsInSsa, 67 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 219/264 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 847]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 183]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 785]: Loop Invariant Derived loop invariant: ((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || \old(pumpRunning) == 0) && ((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0)) - InvariantResult [Line: 821]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 567]: Loop Invariant Derived loop invariant: (!(1 == systemActive) || \old(pumpRunning) == 0) && (!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 617]: Loop Invariant Derived loop invariant: (((!(pumpRunning == 0) && 1 == systemActive) && !(methaneLevelCritical == 0)) && splverifierCounter == 0) || ((methAndRunningLastTime == 0 && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 869]: Loop Invariant Derived loop invariant: (((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) && (((!(1 == systemActive) || \old(pumpRunning) == 0) || (pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical)) || (pumpRunning == 0 && tmp == methaneLevelCritical))) && (((pumpRunning == 0 || methaneLevelCritical == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0) - InvariantResult [Line: 183]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: (((((((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical) && tmp == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && tmp == methaneLevelCritical)) || \old(pumpRunning) == 0) && (((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || (methAndRunningLastTime == 0 && tmp == methaneLevelCritical)) || (pumpRunning == 0 && tmp == methaneLevelCritical))) && (((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 607]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: ((((!(1 == systemActive) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical)) || \old(pumpRunning) == 0) || ((((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical) && tmp == 0)) && (((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || (methAndRunningLastTime == 0 && tmp == methaneLevelCritical)) || ((!(pumpRunning == 0) && tmp == methaneLevelCritical) && pumpRunning == tmp___0))) && (((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 907]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-11-23 14:10:32,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc35b08-588c-425f-afdb-fb664efbd694/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE