./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product18.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682eeeab-1401-4a63-84bb-a81565d0ef52/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682eeeab-1401-4a63-84bb-a81565d0ef52/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682eeeab-1401-4a63-84bb-a81565d0ef52/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682eeeab-1401-4a63-84bb-a81565d0ef52/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product18.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682eeeab-1401-4a63-84bb-a81565d0ef52/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682eeeab-1401-4a63-84bb-a81565d0ef52/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 35231ca8045aab57f76a1443f240aec6c4fd98e44f4fcbe92b2ad0643ba01515 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:32:47,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:32:47,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:32:47,443 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:32:47,443 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:32:47,444 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:32:47,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:32:47,447 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:32:47,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:32:47,450 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:32:47,451 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:32:47,452 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:32:47,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:32:47,453 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:32:47,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:32:47,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:32:47,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:32:47,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:32:47,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:32:47,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:32:47,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:32:47,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:32:47,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:32:47,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:32:47,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:32:47,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:32:47,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:32:47,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:32:47,475 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:32:47,476 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:32:47,476 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:32:47,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:32:47,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:32:47,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:32:47,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:32:47,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:32:47,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:32:47,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:32:47,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:32:47,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:32:47,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:32:47,484 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682eeeab-1401-4a63-84bb-a81565d0ef52/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:32:47,519 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:32:47,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:32:47,520 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:32:47,520 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:32:47,521 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:32:47,521 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:32:47,521 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:32:47,521 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:32:47,522 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:32:47,522 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:32:47,522 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:32:47,522 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:32:47,522 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:32:47,522 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:32:47,523 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:32:47,523 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:32:47,523 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:32:47,523 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:32:47,524 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:32:47,524 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:32:47,524 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:32:47,524 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:32:47,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:32:47,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:32:47,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:32:47,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:32:47,525 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:32:47,525 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:32:47,526 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:32:47,526 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:32:47,526 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:32:47,526 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:32:47,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:32:47,527 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:32:47,527 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:32:47,527 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:32:47,527 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:32:47,527 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:32:47,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:32:47,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:32:47,528 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:32:47,528 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_682eeeab-1401-4a63-84bb-a81565d0ef52/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682eeeab-1401-4a63-84bb-a81565d0ef52/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35231ca8045aab57f76a1443f240aec6c4fd98e44f4fcbe92b2ad0643ba01515 [2022-11-19 07:32:47,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:32:47,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:32:47,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:32:47,779 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:32:47,780 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:32:47,781 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682eeeab-1401-4a63-84bb-a81565d0ef52/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/minepump_spec2_product18.cil.c [2022-11-19 07:32:47,844 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682eeeab-1401-4a63-84bb-a81565d0ef52/bin/utaipan-I9t0OCRTmS/data/065293a96/99000b75d6ad4343bc91d4ec1d690706/FLAGeec116076 [2022-11-19 07:32:48,346 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:32:48,346 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682eeeab-1401-4a63-84bb-a81565d0ef52/sv-benchmarks/c/product-lines/minepump_spec2_product18.cil.c [2022-11-19 07:32:48,381 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682eeeab-1401-4a63-84bb-a81565d0ef52/bin/utaipan-I9t0OCRTmS/data/065293a96/99000b75d6ad4343bc91d4ec1d690706/FLAGeec116076 [2022-11-19 07:32:48,676 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682eeeab-1401-4a63-84bb-a81565d0ef52/bin/utaipan-I9t0OCRTmS/data/065293a96/99000b75d6ad4343bc91d4ec1d690706 [2022-11-19 07:32:48,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:32:48,680 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:32:48,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:32:48,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:32:48,687 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:32:48,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:32:48" (1/1) ... [2022-11-19 07:32:48,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b983567 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:48, skipping insertion in model container [2022-11-19 07:32:48,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:32:48" (1/1) ... [2022-11-19 07:32:48,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:32:48,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:32:49,067 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682eeeab-1401-4a63-84bb-a81565d0ef52/sv-benchmarks/c/product-lines/minepump_spec2_product18.cil.c[18052,18065] [2022-11-19 07:32:49,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:32:49,084 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:32:49,164 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682eeeab-1401-4a63-84bb-a81565d0ef52/sv-benchmarks/c/product-lines/minepump_spec2_product18.cil.c[18052,18065] [2022-11-19 07:32:49,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:32:49,181 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:32:49,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:49 WrapperNode [2022-11-19 07:32:49,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:32:49,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:32:49,183 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:32:49,183 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:32:49,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:49" (1/1) ... [2022-11-19 07:32:49,214 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:49" (1/1) ... [2022-11-19 07:32:49,248 INFO L138 Inliner]: procedures = 54, calls = 95, calls flagged for inlining = 21, calls inlined = 18, statements flattened = 168 [2022-11-19 07:32:49,249 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:32:49,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:32:49,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:32:49,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:32:49,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:49" (1/1) ... [2022-11-19 07:32:49,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:49" (1/1) ... [2022-11-19 07:32:49,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:49" (1/1) ... [2022-11-19 07:32:49,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:49" (1/1) ... [2022-11-19 07:32:49,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:49" (1/1) ... [2022-11-19 07:32:49,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:49" (1/1) ... [2022-11-19 07:32:49,303 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:49" (1/1) ... [2022-11-19 07:32:49,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:49" (1/1) ... [2022-11-19 07:32:49,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:32:49,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:32:49,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:32:49,308 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:32:49,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:49" (1/1) ... [2022-11-19 07:32:49,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:32:49,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682eeeab-1401-4a63-84bb-a81565d0ef52/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:32:49,343 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682eeeab-1401-4a63-84bb-a81565d0ef52/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:32:49,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682eeeab-1401-4a63-84bb-a81565d0ef52/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:32:49,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:32:49,379 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-19 07:32:49,379 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-19 07:32:49,380 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-19 07:32:49,380 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-19 07:32:49,380 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-19 07:32:49,380 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-19 07:32:49,380 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-19 07:32:49,380 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-19 07:32:49,380 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-19 07:32:49,380 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-19 07:32:49,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:32:49,381 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-19 07:32:49,381 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-19 07:32:49,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:32:49,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:32:49,453 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:32:49,455 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:32:49,717 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:32:49,857 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:32:49,857 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 07:32:49,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:32:49 BoogieIcfgContainer [2022-11-19 07:32:49,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:32:49,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:32:49,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:32:49,866 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:32:49,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:32:48" (1/3) ... [2022-11-19 07:32:49,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e456d6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:32:49, skipping insertion in model container [2022-11-19 07:32:49,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:49" (2/3) ... [2022-11-19 07:32:49,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e456d6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:32:49, skipping insertion in model container [2022-11-19 07:32:49,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:32:49" (3/3) ... [2022-11-19 07:32:49,870 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product18.cil.c [2022-11-19 07:32:49,888 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:32:49,888 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:32:49,963 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:32:49,970 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;@5f924434, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:32:49,971 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:32:49,975 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 32 states have (on average 1.4375) internal successors, (46), 38 states have internal predecessors, (46), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-19 07:32:49,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 07:32:49,985 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:32:49,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:32:49,986 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:32:49,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:32:49,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1180952946, now seen corresponding path program 1 times [2022-11-19 07:32:50,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:32:50,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301730685] [2022-11-19 07:32:50,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:50,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:32:50,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:50,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:50,279 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:32:50,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301730685] [2022-11-19 07:32:50,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301730685] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:32:50,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:32:50,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:32:50,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407738236] [2022-11-19 07:32:50,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:32:50,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:32:50,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:32:50,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:32:50,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:32:50,322 INFO L87 Difference]: Start difference. First operand has 49 states, 32 states have (on average 1.4375) internal successors, (46), 38 states have internal predecessors, (46), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) 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) [2022-11-19 07:32:50,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:32:50,433 INFO L93 Difference]: Finished difference Result 96 states and 129 transitions. [2022-11-19 07:32:50,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:32:50,443 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 [2022-11-19 07:32:50,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:32:50,452 INFO L225 Difference]: With dead ends: 96 [2022-11-19 07:32:50,459 INFO L226 Difference]: Without dead ends: 44 [2022-11-19 07:32:50,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:32:50,467 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:32:50,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:32:50,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-19 07:32:50,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-19 07:32:50,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 34 states have internal predecessors, (38), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-19 07:32:50,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2022-11-19 07:32:50,508 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 55 transitions. Word has length 17 [2022-11-19 07:32:50,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:32:50,508 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 55 transitions. [2022-11-19 07:32:50,509 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) [2022-11-19 07:32:50,509 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 55 transitions. [2022-11-19 07:32:50,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 07:32:50,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:32:50,511 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:32:50,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:32:50,512 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:32:50,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:32:50,513 INFO L85 PathProgramCache]: Analyzing trace with hash 389185100, now seen corresponding path program 1 times [2022-11-19 07:32:50,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:32:50,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471135182] [2022-11-19 07:32:50,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:50,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:32:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:50,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:50,668 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:32:50,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471135182] [2022-11-19 07:32:50,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471135182] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:32:50,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:32:50,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:32:50,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012094915] [2022-11-19 07:32:50,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:32:50,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:32:50,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:32:50,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:32:50,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:32:50,673 INFO L87 Difference]: Start difference. First operand 44 states and 55 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) [2022-11-19 07:32:50,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:32:50,739 INFO L93 Difference]: Finished difference Result 65 states and 81 transitions. [2022-11-19 07:32:50,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:32:50,740 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 [2022-11-19 07:32:50,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:32:50,741 INFO L225 Difference]: With dead ends: 65 [2022-11-19 07:32:50,741 INFO L226 Difference]: Without dead ends: 36 [2022-11-19 07:32:50,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:32:50,744 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 7 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:32:50,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 55 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:32:50,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-19 07:32:50,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-11-19 07:32:50,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 29 states have internal predecessors, (32), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-19 07:32:50,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2022-11-19 07:32:50,758 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 18 [2022-11-19 07:32:50,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:32:50,759 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2022-11-19 07:32:50,759 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) [2022-11-19 07:32:50,760 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2022-11-19 07:32:50,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 07:32:50,761 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:32:50,761 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] [2022-11-19 07:32:50,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:32:50,761 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:32:50,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:32:50,762 INFO L85 PathProgramCache]: Analyzing trace with hash -591518693, now seen corresponding path program 1 times [2022-11-19 07:32:50,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:32:50,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417128482] [2022-11-19 07:32:50,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:50,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:32:50,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:50,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:50,976 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:32:50,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417128482] [2022-11-19 07:32:50,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417128482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:32:50,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:32:50,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:32:50,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007169385] [2022-11-19 07:32:50,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:32:50,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:32:50,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:32:50,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:32:50,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:32:50,979 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:32:51,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:32:51,058 INFO L93 Difference]: Finished difference Result 70 states and 87 transitions. [2022-11-19 07:32:51,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:32:51,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-11-19 07:32:51,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:32:51,061 INFO L225 Difference]: With dead ends: 70 [2022-11-19 07:32:51,061 INFO L226 Difference]: Without dead ends: 36 [2022-11-19 07:32:51,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:32:51,063 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 39 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:32:51,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 39 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:32:51,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-19 07:32:51,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-11-19 07:32:51,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 29 states have internal predecessors, (31), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-19 07:32:51,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2022-11-19 07:32:51,078 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 20 [2022-11-19 07:32:51,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:32:51,078 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2022-11-19 07:32:51,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:32:51,079 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2022-11-19 07:32:51,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-19 07:32:51,080 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:32:51,080 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:32:51,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:32:51,081 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:32:51,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:32:51,081 INFO L85 PathProgramCache]: Analyzing trace with hash -519191451, now seen corresponding path program 1 times [2022-11-19 07:32:51,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:32:51,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754167817] [2022-11-19 07:32:51,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:51,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:32:51,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:51,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:51,179 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:32:51,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754167817] [2022-11-19 07:32:51,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754167817] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:32:51,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:32:51,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:32:51,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644293182] [2022-11-19 07:32:51,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:32:51,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:32:51,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:32:51,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:32:51,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:32:51,183 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-11-19 07:32:51,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:32:51,225 INFO L93 Difference]: Finished difference Result 68 states and 81 transitions. [2022-11-19 07:32:51,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:32:51,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 23 [2022-11-19 07:32:51,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:32:51,226 INFO L225 Difference]: With dead ends: 68 [2022-11-19 07:32:51,227 INFO L226 Difference]: Without dead ends: 34 [2022-11-19 07:32:51,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:32:51,229 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 27 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:32:51,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 27 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:32:51,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-19 07:32:51,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-11-19 07:32:51,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 26 states have internal predecessors, (28), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-19 07:32:51,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2022-11-19 07:32:51,238 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 23 [2022-11-19 07:32:51,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:32:51,238 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2022-11-19 07:32:51,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-11-19 07:32:51,239 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2022-11-19 07:32:51,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-19 07:32:51,239 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:32:51,240 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] [2022-11-19 07:32:51,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:32:51,240 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:32:51,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:32:51,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1043395353, now seen corresponding path program 1 times [2022-11-19 07:32:51,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:32:51,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941478757] [2022-11-19 07:32:51,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:51,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:32:51,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:51,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:51,301 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:32:51,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941478757] [2022-11-19 07:32:51,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941478757] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:32:51,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:32:51,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:32:51,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717744622] [2022-11-19 07:32:51,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:32:51,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:32:51,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:32:51,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:32:51,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:32:51,304 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:32:51,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:32:51,381 INFO L93 Difference]: Finished difference Result 66 states and 76 transitions. [2022-11-19 07:32:51,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:32:51,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2022-11-19 07:32:51,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:32:51,383 INFO L225 Difference]: With dead ends: 66 [2022-11-19 07:32:51,384 INFO L226 Difference]: Without dead ends: 64 [2022-11-19 07:32:51,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:32:51,385 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 15 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:32:51,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 57 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:32:51,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-19 07:32:51,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-11-19 07:32:51,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 43 states have (on average 1.2093023255813953) internal successors, (52), 48 states have internal predecessors, (52), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-11-19 07:32:51,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 74 transitions. [2022-11-19 07:32:51,417 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 74 transitions. Word has length 25 [2022-11-19 07:32:51,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:32:51,418 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 74 transitions. [2022-11-19 07:32:51,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:32:51,419 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 74 transitions. [2022-11-19 07:32:51,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-19 07:32:51,425 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:32:51,425 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:32:51,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:32:51,426 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:32:51,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:32:51,426 INFO L85 PathProgramCache]: Analyzing trace with hash -784815510, now seen corresponding path program 1 times [2022-11-19 07:32:51,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:32:51,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828651019] [2022-11-19 07:32:51,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:51,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:32:51,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:51,733 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 07:32:51,733 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:32:51,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828651019] [2022-11-19 07:32:51,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828651019] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:32:51,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264532511] [2022-11-19 07:32:51,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:51,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:32:51,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682eeeab-1401-4a63-84bb-a81565d0ef52/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:32:51,738 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682eeeab-1401-4a63-84bb-a81565d0ef52/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:32:51,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682eeeab-1401-4a63-84bb-a81565d0ef52/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:32:51,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:51,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 07:32:51,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:32:51,908 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-19 07:32:51,908 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:32:51,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264532511] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:32:51,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:32:51,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2022-11-19 07:32:51,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809764525] [2022-11-19 07:32:51,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:32:51,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:32:51,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:32:51,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:32:51,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:32:51,911 INFO L87 Difference]: Start difference. First operand 64 states and 74 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-19 07:32:51,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:32:51,978 INFO L93 Difference]: Finished difference Result 95 states and 110 transitions. [2022-11-19 07:32:51,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:32:51,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 49 [2022-11-19 07:32:51,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:32:51,979 INFO L225 Difference]: With dead ends: 95 [2022-11-19 07:32:51,980 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 07:32:51,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-19 07:32:51,981 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 25 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:32:51,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 45 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:32:51,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 07:32:51,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 07:32:51,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:51,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 07:32:51,984 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2022-11-19 07:32:51,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:32:51,984 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 07:32:51,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-19 07:32:51,985 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 07:32:51,985 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 07:32:51,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:32:52,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682eeeab-1401-4a63-84bb-a81565d0ef52/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:32:52,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682eeeab-1401-4a63-84bb-a81565d0ef52/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-19 07:32:52,196 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 07:32:52,534 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 88 94) no Hoare annotation was computed. [2022-11-19 07:32:52,535 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 88 94) the Hoare annotation is: true [2022-11-19 07:32:52,535 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 454 465) the Hoare annotation is: true [2022-11-19 07:32:52,535 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 454 465) no Hoare annotation was computed. [2022-11-19 07:32:52,535 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 292 321) no Hoare annotation was computed. [2022-11-19 07:32:52,535 INFO L902 garLoopResultBuilder]: At program point L317(lines 292 321) the Hoare annotation is: true [2022-11-19 07:32:52,535 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 292 321) the Hoare annotation is: true [2022-11-19 07:32:52,536 INFO L899 garLoopResultBuilder]: For program point L313(line 313) no Hoare annotation was computed. [2022-11-19 07:32:52,536 INFO L899 garLoopResultBuilder]: For program point L306(lines 306 310) no Hoare annotation was computed. [2022-11-19 07:32:52,536 INFO L902 garLoopResultBuilder]: At program point L306-1(lines 306 310) the Hoare annotation is: true [2022-11-19 07:32:52,536 INFO L902 garLoopResultBuilder]: At program point L302-2(lines 302 316) the Hoare annotation is: true [2022-11-19 07:32:52,536 INFO L902 garLoopResultBuilder]: At program point L298(line 298) the Hoare annotation is: true [2022-11-19 07:32:52,536 INFO L899 garLoopResultBuilder]: For program point L298-1(line 298) no Hoare annotation was computed. [2022-11-19 07:32:52,536 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 466 474) the Hoare annotation is: true [2022-11-19 07:32:52,537 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 466 474) no Hoare annotation was computed. [2022-11-19 07:32:52,537 INFO L895 garLoopResultBuilder]: At program point L927(line 927) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0)) [2022-11-19 07:32:52,537 INFO L895 garLoopResultBuilder]: At program point L110(line 110) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0)) [2022-11-19 07:32:52,537 INFO L895 garLoopResultBuilder]: At program point L899(line 899) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-11-19 07:32:52,538 INFO L899 garLoopResultBuilder]: For program point L899-1(line 899) no Hoare annotation was computed. [2022-11-19 07:32:52,538 INFO L895 garLoopResultBuilder]: At program point L115(line 115) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-11-19 07:32:52,540 INFO L895 garLoopResultBuilder]: At program point L115-1(lines 96 120) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-11-19 07:32:52,541 INFO L899 garLoopResultBuilder]: For program point L75-1(lines 75 81) no Hoare annotation was computed. [2022-11-19 07:32:52,541 INFO L899 garLoopResultBuilder]: For program point L905(lines 905 915) no Hoare annotation was computed. [2022-11-19 07:32:52,542 INFO L895 garLoopResultBuilder]: At program point L104(lines 104 112) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0)) [2022-11-19 07:32:52,542 INFO L895 garLoopResultBuilder]: At program point L901(lines 901 918) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-11-19 07:32:52,542 INFO L895 garLoopResultBuilder]: At program point L100(lines 100 117) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-11-19 07:32:52,543 INFO L895 garLoopResultBuilder]: At program point L901-1(lines 893 921) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-11-19 07:32:52,543 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 64 87) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-11-19 07:32:52,544 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 64 87) no Hoare annotation was computed. [2022-11-19 07:32:52,544 INFO L899 garLoopResultBuilder]: For program point L906(lines 906 912) no Hoare annotation was computed. [2022-11-19 07:32:52,544 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 927) no Hoare annotation was computed. [2022-11-19 07:32:52,544 INFO L899 garLoopResultBuilder]: For program point L68-1(lines 67 86) no Hoare annotation was computed. [2022-11-19 07:32:52,545 INFO L899 garLoopResultBuilder]: For program point L254(lines 254 260) no Hoare annotation was computed. [2022-11-19 07:32:52,547 INFO L895 garLoopResultBuilder]: At program point L254-1(lines 254 260) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_main_~tmp~3#1| ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~3#1| 1)) [2022-11-19 07:32:52,547 INFO L895 garLoopResultBuilder]: At program point L378(lines 378 385) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_main_~tmp~3#1| ~systemActive~0) (= |ULTIMATE.start_main_~tmp~3#1| 1)) [2022-11-19 07:32:52,548 INFO L902 garLoopResultBuilder]: At program point L378-2(lines 378 385) the Hoare annotation is: true [2022-11-19 07:32:52,548 INFO L895 garLoopResultBuilder]: At program point L279(lines 234 281) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_main_~tmp~3#1| ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~3#1| 1)) [2022-11-19 07:32:52,548 INFO L895 garLoopResultBuilder]: At program point L246(line 246) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_main_~tmp~3#1| ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~3#1| 1)) [2022-11-19 07:32:52,548 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-19 07:32:52,549 INFO L895 garLoopResultBuilder]: At program point L272-2(lines 264 277) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_main_~tmp~3#1| ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~3#1| 1)) [2022-11-19 07:32:52,549 INFO L899 garLoopResultBuilder]: For program point L235(lines 234 281) no Hoare annotation was computed. [2022-11-19 07:32:52,549 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 07:32:52,549 INFO L895 garLoopResultBuilder]: At program point L256(line 256) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_main_~tmp~3#1| ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~3#1| 1)) [2022-11-19 07:32:52,549 INFO L902 garLoopResultBuilder]: At program point L285(lines 224 289) the Hoare annotation is: true [2022-11-19 07:32:52,550 INFO L899 garLoopResultBuilder]: For program point L244(lines 244 250) no Hoare annotation was computed. [2022-11-19 07:32:52,551 INFO L899 garLoopResultBuilder]: For program point L244-1(lines 244 250) no Hoare annotation was computed. [2022-11-19 07:32:52,552 INFO L895 garLoopResultBuilder]: At program point L282(lines 233 283) the Hoare annotation is: false [2022-11-19 07:32:52,552 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 442 453) no Hoare annotation was computed. [2022-11-19 07:32:52,552 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 442 453) the Hoare annotation is: true [2022-11-19 07:32:52,555 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-19 07:32:52,558 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:32:52,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:32:52 BoogieIcfgContainer [2022-11-19 07:32:52,595 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:32:52,596 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:32:52,596 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:32:52,596 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:32:52,597 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:32:49" (3/4) ... [2022-11-19 07:32:52,600 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:32:52,606 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-19 07:32:52,606 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-19 07:32:52,606 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-19 07:32:52,606 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-19 07:32:52,606 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-19 07:32:52,607 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-19 07:32:52,613 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2022-11-19 07:32:52,613 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-19 07:32:52,613 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-19 07:32:52,613 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:32:52,614 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:32:52,637 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || (pumpRunning == 0 && methAndRunningLastTime == 0) [2022-11-19 07:32:52,637 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || (pumpRunning == 0 && methAndRunningLastTime == 0) [2022-11-19 07:32:52,638 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || (pumpRunning == 0 && methAndRunningLastTime == 0) [2022-11-19 07:32:52,638 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || (pumpRunning == 0 && methAndRunningLastTime == 0) [2022-11-19 07:32:52,639 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || (pumpRunning == 0 && methAndRunningLastTime == 0) [2022-11-19 07:32:52,639 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive [2022-11-19 07:32:52,640 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive [2022-11-19 07:32:52,667 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682eeeab-1401-4a63-84bb-a81565d0ef52/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:32:52,667 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:32:52,668 INFO L158 Benchmark]: Toolchain (without parser) took 3987.62ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 80.5MB in the beginning and 72.0MB in the end (delta: 8.5MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. [2022-11-19 07:32:52,668 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 102.8MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:32:52,668 INFO L158 Benchmark]: CACSL2BoogieTranslator took 500.42ms. Allocated memory is still 102.8MB. Free memory was 80.2MB in the beginning and 73.0MB in the end (delta: 7.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 07:32:52,669 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.29ms. Allocated memory is still 102.8MB. Free memory was 73.0MB in the beginning and 70.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:32:52,669 INFO L158 Benchmark]: Boogie Preprocessor took 56.71ms. Allocated memory is still 102.8MB. Free memory was 70.8MB in the beginning and 69.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:32:52,669 INFO L158 Benchmark]: RCFGBuilder took 553.05ms. Allocated memory is still 102.8MB. Free memory was 69.2MB in the beginning and 46.7MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-19 07:32:52,670 INFO L158 Benchmark]: TraceAbstraction took 2733.23ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 46.2MB in the beginning and 77.3MB in the end (delta: -31.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:32:52,670 INFO L158 Benchmark]: Witness Printer took 70.94ms. Allocated memory is still 123.7MB. Free memory was 77.3MB in the beginning and 72.0MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-19 07:32:52,672 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 102.8MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 500.42ms. Allocated memory is still 102.8MB. Free memory was 80.2MB in the beginning and 73.0MB in the end (delta: 7.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.29ms. Allocated memory is still 102.8MB. Free memory was 73.0MB in the beginning and 70.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.71ms. Allocated memory is still 102.8MB. Free memory was 70.8MB in the beginning and 69.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 553.05ms. Allocated memory is still 102.8MB. Free memory was 69.2MB in the beginning and 46.7MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2733.23ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 46.2MB in the beginning and 77.3MB in the end (delta: -31.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 70.94ms. Allocated memory is still 123.7MB. Free memory was 77.3MB in the beginning and 72.0MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 927]: 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 7 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 119 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 113 mSDsluCounter, 269 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 82 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 126 IncrementalHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 187 mSDtfsCounter, 126 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=5, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 29 LocationsWithAnnotation, 150 PreInvPairs, 163 NumberOfFragments, 275 HoareAnnotationTreeSize, 150 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 29 FomulaSimplificationsInter, 130 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 201 NumberOfCodeBlocks, 201 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 194 ConstructedInterpolants, 0 QuantifiedInterpolants, 419 SizeOfPredicates, 3 NumberOfNonLiveVariables, 242 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 43/44 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: 233]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 234]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == systemActive) && splverifierCounter == 0) && tmp == 1 - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || (pumpRunning == 0 && methAndRunningLastTime == 0) - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || (pumpRunning == 0 && methAndRunningLastTime == 0) - InvariantResult [Line: 927]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive - InvariantResult [Line: 254]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == systemActive) && splverifierCounter == 0) && tmp == 1 - InvariantResult [Line: 901]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || (pumpRunning == 0 && methAndRunningLastTime == 0) - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || (pumpRunning == 0 && methAndRunningLastTime == 0) - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive - InvariantResult [Line: 893]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || (pumpRunning == 0 && methAndRunningLastTime == 0) - InvariantResult [Line: 378]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == systemActive) && tmp == 1 - InvariantResult [Line: 224]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 292]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 302]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 378]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-19 07:32:52,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682eeeab-1401-4a63-84bb-a81565d0ef52/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE