./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product25.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_1dfd2b20-4c32-4f42-8024-59d2c4249d83/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfd2b20-4c32-4f42-8024-59d2c4249d83/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_1dfd2b20-4c32-4f42-8024-59d2c4249d83/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfd2b20-4c32-4f42-8024-59d2c4249d83/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product25.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfd2b20-4c32-4f42-8024-59d2c4249d83/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_1dfd2b20-4c32-4f42-8024-59d2c4249d83/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 5abd504bc7fd9e1d9830fe8cb395b594cef8d9561a1cc007a8c59d03b6adcc21 --- 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 07:59:17,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:59:17,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:59:17,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:59:17,411 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:59:17,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:59:17,413 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:59:17,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:59:17,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:59:17,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:59:17,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:59:17,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:59:17,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:59:17,437 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:59:17,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:59:17,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:59:17,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:59:17,445 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:59:17,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:59:17,455 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:59:17,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:59:17,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:59:17,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:59:17,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:59:17,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:59:17,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:59:17,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:59:17,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:59:17,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:59:17,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:59:17,476 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:59:17,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:59:17,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:59:17,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:59:17,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:59:17,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:59:17,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:59:17,484 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:59:17,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:59:17,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:59:17,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:59:17,491 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfd2b20-4c32-4f42-8024-59d2c4249d83/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:59:17,532 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:59:17,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:59:17,533 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:59:17,533 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:59:17,534 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:59:17,534 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:59:17,534 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:59:17,535 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:59:17,535 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:59:17,535 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:59:17,536 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:59:17,536 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:59:17,537 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:59:17,537 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:59:17,537 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:59:17,537 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:59:17,538 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:59:17,538 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:59:17,539 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:59:17,539 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:59:17,539 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:59:17,539 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:59:17,539 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:59:17,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:59:17,541 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:59:17,541 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:59:17,542 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:59:17,542 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:59:17,542 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:59:17,542 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:59:17,543 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:59:17,543 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:59:17,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:59:17,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:59:17,544 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:59:17,544 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:59:17,544 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:59:17,544 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:59:17,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:59:17,545 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:59:17,545 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:59:17,545 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_1dfd2b20-4c32-4f42-8024-59d2c4249d83/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfd2b20-4c32-4f42-8024-59d2c4249d83/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5abd504bc7fd9e1d9830fe8cb395b594cef8d9561a1cc007a8c59d03b6adcc21 [2022-11-19 07:59:17,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:59:17,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:59:17,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:59:17,913 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:59:17,914 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:59:17,915 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfd2b20-4c32-4f42-8024-59d2c4249d83/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/minepump_spec1_product25.cil.c [2022-11-19 07:59:18,000 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfd2b20-4c32-4f42-8024-59d2c4249d83/bin/utaipan-I9t0OCRTmS/data/6faa1c83a/2e22cc5238f94ab4a7c3577b009789b3/FLAG66863d9f3 [2022-11-19 07:59:18,556 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:59:18,557 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfd2b20-4c32-4f42-8024-59d2c4249d83/sv-benchmarks/c/product-lines/minepump_spec1_product25.cil.c [2022-11-19 07:59:18,570 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfd2b20-4c32-4f42-8024-59d2c4249d83/bin/utaipan-I9t0OCRTmS/data/6faa1c83a/2e22cc5238f94ab4a7c3577b009789b3/FLAG66863d9f3 [2022-11-19 07:59:18,998 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfd2b20-4c32-4f42-8024-59d2c4249d83/bin/utaipan-I9t0OCRTmS/data/6faa1c83a/2e22cc5238f94ab4a7c3577b009789b3 [2022-11-19 07:59:19,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:59:19,004 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:59:19,008 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:59:19,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:59:19,012 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:59:19,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:19" (1/1) ... [2022-11-19 07:59:19,014 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@226630c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:19, skipping insertion in model container [2022-11-19 07:59:19,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:19" (1/1) ... [2022-11-19 07:59:19,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:59:19,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:59:19,310 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_1dfd2b20-4c32-4f42-8024-59d2c4249d83/sv-benchmarks/c/product-lines/minepump_spec1_product25.cil.c[3924,3937] [2022-11-19 07:59:19,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:59:19,389 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:59:19,409 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_1dfd2b20-4c32-4f42-8024-59d2c4249d83/sv-benchmarks/c/product-lines/minepump_spec1_product25.cil.c[3924,3937] [2022-11-19 07:59:19,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:59:19,482 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:59:19,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:19 WrapperNode [2022-11-19 07:59:19,482 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:59:19,483 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:59:19,484 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:59:19,484 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:59:19,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:19" (1/1) ... [2022-11-19 07:59:19,504 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:19" (1/1) ... [2022-11-19 07:59:19,526 INFO L138 Inliner]: procedures = 53, calls = 95, calls flagged for inlining = 21, calls inlined = 16, statements flattened = 157 [2022-11-19 07:59:19,527 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:59:19,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:59:19,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:59:19,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:59:19,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:19" (1/1) ... [2022-11-19 07:59:19,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:19" (1/1) ... [2022-11-19 07:59:19,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:19" (1/1) ... [2022-11-19 07:59:19,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:19" (1/1) ... [2022-11-19 07:59:19,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:19" (1/1) ... [2022-11-19 07:59:19,549 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:19" (1/1) ... [2022-11-19 07:59:19,550 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:19" (1/1) ... [2022-11-19 07:59:19,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:19" (1/1) ... [2022-11-19 07:59:19,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:59:19,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:59:19,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:59:19,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:59:19,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:19" (1/1) ... [2022-11-19 07:59:19,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:59:19,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfd2b20-4c32-4f42-8024-59d2c4249d83/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:59:19,588 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfd2b20-4c32-4f42-8024-59d2c4249d83/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:59:19,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfd2b20-4c32-4f42-8024-59d2c4249d83/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:59:19,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:59:19,635 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-19 07:59:19,636 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-19 07:59:19,636 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-19 07:59:19,636 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-19 07:59:19,636 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-19 07:59:19,636 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-19 07:59:19,636 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-19 07:59:19,637 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-19 07:59:19,637 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-19 07:59:19,637 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-19 07:59:19,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:59:19,638 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-19 07:59:19,638 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-19 07:59:19,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:59:19,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:59:19,746 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:59:19,748 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:59:20,010 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:59:20,187 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:59:20,188 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 07:59:20,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:20 BoogieIcfgContainer [2022-11-19 07:59:20,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:59:20,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:59:20,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:59:20,209 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:59:20,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:59:19" (1/3) ... [2022-11-19 07:59:20,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f413898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:59:20, skipping insertion in model container [2022-11-19 07:59:20,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:19" (2/3) ... [2022-11-19 07:59:20,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f413898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:59:20, skipping insertion in model container [2022-11-19 07:59:20,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:20" (3/3) ... [2022-11-19 07:59:20,213 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product25.cil.c [2022-11-19 07:59:20,237 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:59:20,238 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:59:20,322 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:59:20,331 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;@7b2dd5f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:59:20,332 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:59:20,336 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 37 states have internal predecessors, (44), 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 07:59:20,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-19 07:59:20,345 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:59:20,346 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:59:20,346 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:59:20,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:59:20,352 INFO L85 PathProgramCache]: Analyzing trace with hash -2103020939, now seen corresponding path program 1 times [2022-11-19 07:59:20,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:59:20,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43236248] [2022-11-19 07:59:20,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:59:20,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:59:20,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:59:20,590 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 07:59:20,590 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:59:20,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43236248] [2022-11-19 07:59:20,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43236248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:59:20,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:59:20,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:59:20,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108155296] [2022-11-19 07:59:20,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:59:20,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:59:20,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:59:20,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:59:20,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:59:20,643 INFO L87 Difference]: Start difference. First operand has 48 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 37 states have internal predecessors, (44), 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:59:20,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:59:20,703 INFO L93 Difference]: Finished difference Result 94 states and 125 transitions. [2022-11-19 07:59:20,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:59:20,706 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-11-19 07:59:20,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:59:20,714 INFO L225 Difference]: With dead ends: 94 [2022-11-19 07:59:20,714 INFO L226 Difference]: Without dead ends: 43 [2022-11-19 07:59:20,718 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 07:59:20,721 INFO L413 NwaCegarLoop]: 44 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, 44 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:59:20,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:59:20,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-19 07:59:20,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-11-19 07:59:20,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 33 states have internal predecessors, (36), 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 07:59:20,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2022-11-19 07:59:20,774 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 16 [2022-11-19 07:59:20,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:59:20,775 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2022-11-19 07:59:20,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:59:20,776 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2022-11-19 07:59:20,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 07:59:20,778 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:59:20,778 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 07:59:20,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:59:20,779 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:59:20,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:59:20,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1422448585, now seen corresponding path program 1 times [2022-11-19 07:59:20,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:59:20,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581008313] [2022-11-19 07:59:20,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:59:20,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:59:20,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:59:20,924 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 07:59:20,924 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:59:20,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581008313] [2022-11-19 07:59:20,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581008313] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:59:20,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:59:20,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:59:20,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157403012] [2022-11-19 07:59:20,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:59:20,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:59:20,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:59:20,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:59:20,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:59:20,928 INFO L87 Difference]: Start difference. First operand 43 states and 53 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:59:20,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:59:20,984 INFO L93 Difference]: Finished difference Result 63 states and 77 transitions. [2022-11-19 07:59:20,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:59:20,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-19 07:59:20,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:59:20,986 INFO L225 Difference]: With dead ends: 63 [2022-11-19 07:59:20,986 INFO L226 Difference]: Without dead ends: 35 [2022-11-19 07:59:20,986 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 07:59:20,988 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 7 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 51 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 07:59:20,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 51 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:59:20,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-19 07:59:20,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-19 07:59:20,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 28 states have internal predecessors, (30), 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 07:59:20,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2022-11-19 07:59:20,995 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 17 [2022-11-19 07:59:20,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:59:20,996 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2022-11-19 07:59:20,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:59:20,996 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2022-11-19 07:59:20,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 07:59:20,997 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:59:20,998 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:59:20,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:59:20,998 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:59:20,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:59:20,999 INFO L85 PathProgramCache]: Analyzing trace with hash 307570557, now seen corresponding path program 1 times [2022-11-19 07:59:20,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:59:20,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293387120] [2022-11-19 07:59:20,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:59:21,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:59:21,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:59:21,144 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 07:59:21,144 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:59:21,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293387120] [2022-11-19 07:59:21,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293387120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:59:21,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:59:21,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:59:21,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973520173] [2022-11-19 07:59:21,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:59:21,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:59:21,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:59:21,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:59:21,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:59:21,147 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 07:59:21,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:59:21,229 INFO L93 Difference]: Finished difference Result 68 states and 83 transitions. [2022-11-19 07:59:21,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:59:21,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 19 [2022-11-19 07:59:21,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:59:21,231 INFO L225 Difference]: With dead ends: 68 [2022-11-19 07:59:21,231 INFO L226 Difference]: Without dead ends: 35 [2022-11-19 07:59:21,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:59:21,233 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 38 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:59:21,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 35 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:59:21,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-19 07:59:21,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-19 07:59:21,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 28 states have internal predecessors, (29), 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 07:59:21,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2022-11-19 07:59:21,242 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 19 [2022-11-19 07:59:21,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:59:21,242 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2022-11-19 07:59:21,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 07:59:21,243 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2022-11-19 07:59:21,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-19 07:59:21,243 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:59:21,244 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] [2022-11-19 07:59:21,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:59:21,244 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:59:21,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:59:21,245 INFO L85 PathProgramCache]: Analyzing trace with hash -2097750236, now seen corresponding path program 1 times [2022-11-19 07:59:21,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:59:21,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004740649] [2022-11-19 07:59:21,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:59:21,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:59:21,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:59:21,411 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 07:59:21,411 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:59:21,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004740649] [2022-11-19 07:59:21,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004740649] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:59:21,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:59:21,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:59:21,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424404996] [2022-11-19 07:59:21,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:59:21,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:59:21,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:59:21,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:59:21,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:59:21,415 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 07:59:21,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:59:21,452 INFO L93 Difference]: Finished difference Result 66 states and 77 transitions. [2022-11-19 07:59:21,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:59:21,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 22 [2022-11-19 07:59:21,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:59:21,460 INFO L225 Difference]: With dead ends: 66 [2022-11-19 07:59:21,460 INFO L226 Difference]: Without dead ends: 33 [2022-11-19 07:59:21,460 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 07:59:21,462 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 25 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 07:59:21,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 25 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:59:21,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-19 07:59:21,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-19 07:59:21,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 25 states have internal predecessors, (26), 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 07:59:21,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2022-11-19 07:59:21,480 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 22 [2022-11-19 07:59:21,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:59:21,481 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2022-11-19 07:59:21,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 07:59:21,481 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2022-11-19 07:59:21,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 07:59:21,486 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:59:21,487 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] [2022-11-19 07:59:21,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:59:21,487 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:59:21,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:59:21,488 INFO L85 PathProgramCache]: Analyzing trace with hash 959910359, now seen corresponding path program 1 times [2022-11-19 07:59:21,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:59:21,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396077040] [2022-11-19 07:59:21,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:59:21,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:59:21,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:59:21,594 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 07:59:21,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:59:21,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396077040] [2022-11-19 07:59:21,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396077040] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:59:21,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:59:21,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 07:59:21,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021753120] [2022-11-19 07:59:21,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:59:21,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:59:21,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:59:21,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:59:21,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:59:21,597 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:59:21,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:59:21,747 INFO L93 Difference]: Finished difference Result 93 states and 104 transitions. [2022-11-19 07:59:21,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 07:59:21,748 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2022-11-19 07:59:21,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:59:21,749 INFO L225 Difference]: With dead ends: 93 [2022-11-19 07:59:21,749 INFO L226 Difference]: Without dead ends: 62 [2022-11-19 07:59:21,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:59:21,751 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 16 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:59:21,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 128 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:59:21,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-19 07:59:21,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2022-11-19 07:59:21,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 39 states have (on average 1.1538461538461537) internal successors, (45), 43 states have internal predecessors, (45), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-19 07:59:21,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 63 transitions. [2022-11-19 07:59:21,780 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 63 transitions. Word has length 24 [2022-11-19 07:59:21,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:59:21,781 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 63 transitions. [2022-11-19 07:59:21,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:59:21,781 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 63 transitions. [2022-11-19 07:59:21,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-19 07:59:21,782 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:59:21,782 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:59:21,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:59:21,783 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:59:21,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:59:21,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1419574243, now seen corresponding path program 1 times [2022-11-19 07:59:21,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:59:21,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348529829] [2022-11-19 07:59:21,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:59:21,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:59:21,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:59:21,984 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 07:59:21,985 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:59:21,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348529829] [2022-11-19 07:59:21,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348529829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:59:21,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:59:21,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:59:21,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837288509] [2022-11-19 07:59:21,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:59:21,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:59:21,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:59:21,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:59:21,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:59:21,988 INFO L87 Difference]: Start difference. First operand 58 states and 63 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-19 07:59:22,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:59:22,038 INFO L93 Difference]: Finished difference Result 60 states and 65 transitions. [2022-11-19 07:59:22,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:59:22,039 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2022-11-19 07:59:22,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:59:22,039 INFO L225 Difference]: With dead ends: 60 [2022-11-19 07:59:22,039 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 07:59:22,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:59:22,041 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 18 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:59:22,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 45 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:59:22,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 07:59:22,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 07:59:22,043 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 07:59:22,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 07:59:22,043 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2022-11-19 07:59:22,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:59:22,044 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 07:59:22,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-19 07:59:22,044 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 07:59:22,044 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 07:59:22,047 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:59:22,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:59:22,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 07:59:22,463 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 252 258) no Hoare annotation was computed. [2022-11-19 07:59:22,464 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 252 258) the Hoare annotation is: true [2022-11-19 07:59:22,464 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 83 94) the Hoare annotation is: true [2022-11-19 07:59:22,464 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 83 94) no Hoare annotation was computed. [2022-11-19 07:59:22,464 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 462 491) no Hoare annotation was computed. [2022-11-19 07:59:22,464 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 462 491) the Hoare annotation is: true [2022-11-19 07:59:22,464 INFO L899 garLoopResultBuilder]: For program point L476(lines 476 480) no Hoare annotation was computed. [2022-11-19 07:59:22,465 INFO L902 garLoopResultBuilder]: At program point L476-1(lines 476 480) the Hoare annotation is: true [2022-11-19 07:59:22,465 INFO L902 garLoopResultBuilder]: At program point L472-2(lines 472 486) the Hoare annotation is: true [2022-11-19 07:59:22,465 INFO L902 garLoopResultBuilder]: At program point L468(line 468) the Hoare annotation is: true [2022-11-19 07:59:22,465 INFO L899 garLoopResultBuilder]: For program point L468-1(line 468) no Hoare annotation was computed. [2022-11-19 07:59:22,465 INFO L902 garLoopResultBuilder]: At program point L487(lines 462 491) the Hoare annotation is: true [2022-11-19 07:59:22,465 INFO L899 garLoopResultBuilder]: For program point L483(line 483) no Hoare annotation was computed. [2022-11-19 07:59:22,466 INFO L895 garLoopResultBuilder]: At program point L192(line 192) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0)) [2022-11-19 07:59:22,466 INFO L899 garLoopResultBuilder]: For program point L192-1(line 192) no Hoare annotation was computed. [2022-11-19 07:59:22,466 INFO L895 garLoopResultBuilder]: At program point L279(line 279) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0)) [2022-11-19 07:59:22,466 INFO L895 garLoopResultBuilder]: At program point L279-1(lines 260 284) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0)) [2022-11-19 07:59:22,466 INFO L899 garLoopResultBuilder]: For program point L239-1(lines 239 245) no Hoare annotation was computed. [2022-11-19 07:59:22,467 INFO L895 garLoopResultBuilder]: At program point L268(lines 268 276) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2022-11-19 07:59:22,467 INFO L895 garLoopResultBuilder]: At program point L264(lines 264 281) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0)) [2022-11-19 07:59:22,467 INFO L899 garLoopResultBuilder]: For program point L198(lines 198 204) no Hoare annotation was computed. [2022-11-19 07:59:22,467 INFO L895 garLoopResultBuilder]: At program point L194(lines 194 207) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (= ~pumpRunning~0 0) .cse1) (or .cse0 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~0#1| 0) (not (= ~methaneLevelCritical~0 0)) .cse1))) [2022-11-19 07:59:22,467 INFO L895 garLoopResultBuilder]: At program point L194-1(lines 186 210) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (= ~pumpRunning~0 0) .cse1) (or .cse0 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~0#1| 0) (not (= ~methaneLevelCritical~0 0)) .cse1))) [2022-11-19 07:59:22,467 INFO L899 garLoopResultBuilder]: For program point L232-1(lines 231 250) no Hoare annotation was computed. [2022-11-19 07:59:22,468 INFO L895 garLoopResultBuilder]: At program point L216(line 216) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2022-11-19 07:59:22,468 INFO L895 garLoopResultBuilder]: At program point L274(line 274) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2022-11-19 07:59:22,468 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 228 251) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0)) [2022-11-19 07:59:22,468 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 228 251) no Hoare annotation was computed. [2022-11-19 07:59:22,468 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 216) no Hoare annotation was computed. [2022-11-19 07:59:22,469 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 95 103) the Hoare annotation is: true [2022-11-19 07:59:22,469 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 95 103) no Hoare annotation was computed. [2022-11-19 07:59:22,469 INFO L895 garLoopResultBuilder]: At program point L543(lines 543 550) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0) (not (= 0 ~systemActive~0))) [2022-11-19 07:59:22,469 INFO L902 garLoopResultBuilder]: At program point L543-2(lines 543 550) the Hoare annotation is: true [2022-11-19 07:59:22,469 INFO L899 garLoopResultBuilder]: For program point L407(lines 406 451) no Hoare annotation was computed. [2022-11-19 07:59:22,469 INFO L895 garLoopResultBuilder]: At program point L428(line 428) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0) (not (= 0 ~systemActive~0))) [2022-11-19 07:59:22,469 INFO L895 garLoopResultBuilder]: At program point L449(lines 406 451) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0) (not (= 0 ~systemActive~0))) [2022-11-19 07:59:22,470 INFO L899 garLoopResultBuilder]: For program point L416(lines 416 422) no Hoare annotation was computed. [2022-11-19 07:59:22,470 INFO L899 garLoopResultBuilder]: For program point L416-1(lines 416 422) no Hoare annotation was computed. [2022-11-19 07:59:22,470 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-19 07:59:22,470 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 07:59:22,470 INFO L895 garLoopResultBuilder]: At program point L442-2(lines 436 447) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0) (not (= 0 ~systemActive~0))) [2022-11-19 07:59:22,471 INFO L899 garLoopResultBuilder]: For program point L426(lines 426 432) no Hoare annotation was computed. [2022-11-19 07:59:22,471 INFO L899 garLoopResultBuilder]: For program point L426-1(lines 426 432) no Hoare annotation was computed. [2022-11-19 07:59:22,472 INFO L902 garLoopResultBuilder]: At program point L455(lines 396 459) the Hoare annotation is: true [2022-11-19 07:59:22,472 INFO L895 garLoopResultBuilder]: At program point L418(line 418) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0) (not (= 0 ~systemActive~0))) [2022-11-19 07:59:22,472 INFO L895 garLoopResultBuilder]: At program point L452(lines 405 453) the Hoare annotation is: false [2022-11-19 07:59:22,472 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 71 82) no Hoare annotation was computed. [2022-11-19 07:59:22,473 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 71 82) the Hoare annotation is: true [2022-11-19 07:59:22,476 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-19 07:59:22,478 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:59:22,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:59:22 BoogieIcfgContainer [2022-11-19 07:59:22,493 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:59:22,494 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:59:22,494 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:59:22,494 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:59:22,495 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:20" (3/4) ... [2022-11-19 07:59:22,498 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:59:22,503 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-19 07:59:22,504 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-19 07:59:22,504 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-19 07:59:22,504 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-19 07:59:22,504 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-19 07:59:22,505 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-19 07:59:22,510 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2022-11-19 07:59:22,511 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-19 07:59:22,511 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-19 07:59:22,512 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:59:22,512 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:59:22,536 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive [2022-11-19 07:59:22,537 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive [2022-11-19 07:59:22,538 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive [2022-11-19 07:59:22,538 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) && (((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) [2022-11-19 07:59:22,539 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) && (((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) [2022-11-19 07:59:22,539 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || 0 == systemActive [2022-11-19 07:59:22,540 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || 0 == systemActive [2022-11-19 07:59:22,566 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfd2b20-4c32-4f42-8024-59d2c4249d83/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:59:22,570 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:59:22,571 INFO L158 Benchmark]: Toolchain (without parser) took 3567.88ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 61.3MB in the beginning and 41.7MB in the end (delta: 19.7MB). Peak memory consumption was 45.1MB. Max. memory is 16.1GB. [2022-11-19 07:59:22,572 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 94.4MB. Free memory is still 52.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:59:22,573 INFO L158 Benchmark]: CACSL2BoogieTranslator took 474.46ms. Allocated memory is still 94.4MB. Free memory was 61.1MB in the beginning and 61.8MB in the end (delta: -703.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:59:22,573 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.34ms. Allocated memory is still 94.4MB. Free memory was 61.8MB in the beginning and 59.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:59:22,573 INFO L158 Benchmark]: Boogie Preprocessor took 26.99ms. Allocated memory is still 94.4MB. Free memory was 59.7MB in the beginning and 58.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:59:22,574 INFO L158 Benchmark]: RCFGBuilder took 636.26ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 58.2MB in the beginning and 89.2MB in the end (delta: -30.9MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2022-11-19 07:59:22,575 INFO L158 Benchmark]: TraceAbstraction took 2300.20ms. Allocated memory is still 119.5MB. Free memory was 88.6MB in the beginning and 45.9MB in the end (delta: 42.8MB). Peak memory consumption was 42.9MB. Max. memory is 16.1GB. [2022-11-19 07:59:22,575 INFO L158 Benchmark]: Witness Printer took 76.79ms. Allocated memory is still 119.5MB. Free memory was 45.9MB in the beginning and 41.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 07:59:22,578 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 94.4MB. Free memory is still 52.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 474.46ms. Allocated memory is still 94.4MB. Free memory was 61.1MB in the beginning and 61.8MB in the end (delta: -703.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.34ms. Allocated memory is still 94.4MB. Free memory was 61.8MB in the beginning and 59.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.99ms. Allocated memory is still 94.4MB. Free memory was 59.7MB in the beginning and 58.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 636.26ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 58.2MB in the beginning and 89.2MB in the end (delta: -30.9MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2300.20ms. Allocated memory is still 119.5MB. Free memory was 88.6MB in the beginning and 45.9MB in the end (delta: 42.8MB). Peak memory consumption was 42.9MB. Max. memory is 16.1GB. * Witness Printer took 76.79ms. Allocated memory is still 119.5MB. Free memory was 45.9MB in the beginning and 41.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 216]: 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, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 109 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 104 mSDsluCounter, 328 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 152 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 173 IncrementalHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 176 mSDtfsCounter, 173 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=5, InterpolantAutomatonStates: 24, 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, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 148 PreInvPairs, 167 NumberOfFragments, 216 HoareAnnotationTreeSize, 148 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 28 FomulaSimplificationsInter, 506 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 125 NumberOfCodeBlocks, 125 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 119 ConstructedInterpolants, 0 QuantifiedInterpolants, 254 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 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: 462]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 406]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && splverifierCounter == 0) && tmp == systemActive) && !(0 == systemActive) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 396]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 268]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || 0 == systemActive - InvariantResult [Line: 260]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive - InvariantResult [Line: 228]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive - InvariantResult [Line: 264]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive - InvariantResult [Line: 405]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 194]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) && (((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) - InvariantResult [Line: 543]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 543]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && tmp == systemActive) && !(0 == systemActive) - InvariantResult [Line: 472]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 186]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) && (((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) - InvariantResult [Line: 216]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || 0 == systemActive RESULT: Ultimate proved your program to be correct! [2022-11-19 07:59:22,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfd2b20-4c32-4f42-8024-59d2c4249d83/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