./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a75c0a-ea62-4c71-b8eb-21cba32a1fc0/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a75c0a-ea62-4c71-b8eb-21cba32a1fc0/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_47a75c0a-ea62-4c71-b8eb-21cba32a1fc0/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a75c0a-ea62-4c71-b8eb-21cba32a1fc0/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a75c0a-ea62-4c71-b8eb-21cba32a1fc0/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_47a75c0a-ea62-4c71-b8eb-21cba32a1fc0/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 40ec21bd2775f54496a6d376e4b1b562b086a4c18151452e7b83204c384db515 --- 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 07:45:23,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:45:23,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:45:23,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:45:23,284 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:45:23,288 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:45:23,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:45:23,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:45:23,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:45:23,306 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:45:23,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:45:23,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:45:23,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:45:23,313 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:45:23,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:45:23,317 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:45:23,318 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:45:23,319 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:45:23,321 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:45:23,327 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:45:23,330 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:45:23,331 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:45:23,334 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:45:23,335 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:45:23,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:45:23,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:45:23,346 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:45:23,347 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:45:23,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:45:23,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:45:23,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:45:23,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:45:23,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:45:23,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:45:23,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:45:23,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:45:23,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:45:23,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:45:23,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:45:23,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:45:23,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:45:23,360 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a75c0a-ea62-4c71-b8eb-21cba32a1fc0/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:45:23,397 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:45:23,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:45:23,398 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:45:23,399 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:45:23,400 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:45:23,400 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:45:23,400 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:45:23,400 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:45:23,401 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:45:23,401 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:45:23,402 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:45:23,402 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:45:23,402 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:45:23,403 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:45:23,403 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:45:23,403 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:45:23,403 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:45:23,403 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:45:23,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:45:23,404 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:45:23,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:45:23,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:45:23,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:45:23,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:45:23,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:45:23,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:45:23,407 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:45:23,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:45:23,407 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:45:23,408 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:45:23,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:45:23,409 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:45:23,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:45:23,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:45:23,410 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:45:23,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:45:23,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:45:23,410 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:45:23,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:45:23,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:45:23,411 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:45:23,411 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_47a75c0a-ea62-4c71-b8eb-21cba32a1fc0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a75c0a-ea62-4c71-b8eb-21cba32a1fc0/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40ec21bd2775f54496a6d376e4b1b562b086a4c18151452e7b83204c384db515 [2022-11-19 07:45:23,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:45:23,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:45:23,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:45:23,735 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:45:23,737 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:45:23,738 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a75c0a-ea62-4c71-b8eb-21cba32a1fc0/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2022-11-19 07:45:23,821 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a75c0a-ea62-4c71-b8eb-21cba32a1fc0/bin/utaipan-I9t0OCRTmS/data/ab24e007b/3f78c3e17ae245358bb08cfed7f75bcc/FLAG74f696f8d [2022-11-19 07:45:24,420 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:45:24,420 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a75c0a-ea62-4c71-b8eb-21cba32a1fc0/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2022-11-19 07:45:24,436 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a75c0a-ea62-4c71-b8eb-21cba32a1fc0/bin/utaipan-I9t0OCRTmS/data/ab24e007b/3f78c3e17ae245358bb08cfed7f75bcc/FLAG74f696f8d [2022-11-19 07:45:24,724 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a75c0a-ea62-4c71-b8eb-21cba32a1fc0/bin/utaipan-I9t0OCRTmS/data/ab24e007b/3f78c3e17ae245358bb08cfed7f75bcc [2022-11-19 07:45:24,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:45:24,728 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:45:24,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:45:24,733 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:45:24,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:45:24,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:45:24" (1/1) ... [2022-11-19 07:45:24,740 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6774da82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:24, skipping insertion in model container [2022-11-19 07:45:24,742 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:45:24" (1/1) ... [2022-11-19 07:45:24,750 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:45:24,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:45:25,061 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_47a75c0a-ea62-4c71-b8eb-21cba32a1fc0/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c[5279,5292] [2022-11-19 07:45:25,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:45:25,134 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:45:25,157 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_47a75c0a-ea62-4c71-b8eb-21cba32a1fc0/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c[5279,5292] [2022-11-19 07:45:25,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:45:25,226 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:45:25,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:25 WrapperNode [2022-11-19 07:45:25,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:45:25,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:45:25,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:45:25,231 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:45:25,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:25" (1/1) ... [2022-11-19 07:45:25,251 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:25" (1/1) ... [2022-11-19 07:45:25,280 INFO L138 Inliner]: procedures = 55, calls = 99, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 200 [2022-11-19 07:45:25,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:45:25,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:45:25,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:45:25,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:45:25,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:25" (1/1) ... [2022-11-19 07:45:25,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:25" (1/1) ... [2022-11-19 07:45:25,292 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:25" (1/1) ... [2022-11-19 07:45:25,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:25" (1/1) ... [2022-11-19 07:45:25,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:25" (1/1) ... [2022-11-19 07:45:25,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:25" (1/1) ... [2022-11-19 07:45:25,324 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:25" (1/1) ... [2022-11-19 07:45:25,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:25" (1/1) ... [2022-11-19 07:45:25,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:45:25,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:45:25,328 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:45:25,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:45:25,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:25" (1/1) ... [2022-11-19 07:45:25,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:45:25,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a75c0a-ea62-4c71-b8eb-21cba32a1fc0/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:45:25,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a75c0a-ea62-4c71-b8eb-21cba32a1fc0/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:45:25,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a75c0a-ea62-4c71-b8eb-21cba32a1fc0/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:45:25,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:45:25,420 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-19 07:45:25,420 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-19 07:45:25,420 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-19 07:45:25,421 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-19 07:45:25,421 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-19 07:45:25,421 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-19 07:45:25,421 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-19 07:45:25,421 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-19 07:45:25,421 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-19 07:45:25,421 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-19 07:45:25,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:45:25,422 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-19 07:45:25,422 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-19 07:45:25,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:45:25,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:45:25,533 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:45:25,536 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:45:25,872 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:45:25,976 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:45:25,977 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 07:45:25,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:45:25 BoogieIcfgContainer [2022-11-19 07:45:25,979 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:45:25,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:45:25,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:45:25,986 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:45:25,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:45:24" (1/3) ... [2022-11-19 07:45:25,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37288c63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:45:25, skipping insertion in model container [2022-11-19 07:45:25,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:25" (2/3) ... [2022-11-19 07:45:25,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37288c63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:45:25, skipping insertion in model container [2022-11-19 07:45:25,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:45:25" (3/3) ... [2022-11-19 07:45:25,989 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product44.cil.c [2022-11-19 07:45:26,013 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:45:26,013 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:45:26,063 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:45:26,070 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;@16529405, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:45:26,070 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:45:26,074 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-19 07:45:26,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 07:45:26,082 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:45:26,083 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 07:45:26,083 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:45:26,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:45:26,088 INFO L85 PathProgramCache]: Analyzing trace with hash -241988560, now seen corresponding path program 1 times [2022-11-19 07:45:26,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:45:26,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136381505] [2022-11-19 07:45:26,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:45:26,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:45:26,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:45:26,307 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 07:45:26,307 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:45:26,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136381505] [2022-11-19 07:45:26,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136381505] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:45:26,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:45:26,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:45:26,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424670550] [2022-11-19 07:45:26,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:45:26,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:45:26,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:45:26,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:45:26,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:45:26,352 INFO L87 Difference]: Start difference. First operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:45:26,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:45:26,413 INFO L93 Difference]: Finished difference Result 100 states and 135 transitions. [2022-11-19 07:45:26,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:45:26,416 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-19 07:45:26,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:45:26,424 INFO L225 Difference]: With dead ends: 100 [2022-11-19 07:45:26,424 INFO L226 Difference]: Without dead ends: 46 [2022-11-19 07:45:26,427 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 07:45:26,430 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:45:26,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:45:26,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-19 07:45:26,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-19 07:45:26,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.3) internal successors, (39), 35 states have internal predecessors, (39), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-19 07:45:26,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2022-11-19 07:45:26,470 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 17 [2022-11-19 07:45:26,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:45:26,471 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2022-11-19 07:45:26,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:45:26,471 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2022-11-19 07:45:26,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 07:45:26,473 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:45:26,473 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:45:26,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:45:26,474 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:45:26,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:45:26,475 INFO L85 PathProgramCache]: Analyzing trace with hash -28258463, now seen corresponding path program 1 times [2022-11-19 07:45:26,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:45:26,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180877719] [2022-11-19 07:45:26,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:45:26,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:45:26,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:45:26,583 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 07:45:26,583 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:45:26,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180877719] [2022-11-19 07:45:26,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180877719] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:45:26,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:45:26,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:45:26,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038806074] [2022-11-19 07:45:26,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:45:26,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:45:26,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:45:26,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:45:26,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:45:26,588 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:45:26,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:45:26,657 INFO L93 Difference]: Finished difference Result 69 states and 87 transitions. [2022-11-19 07:45:26,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:45:26,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-19 07:45:26,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:45:26,659 INFO L225 Difference]: With dead ends: 69 [2022-11-19 07:45:26,659 INFO L226 Difference]: Without dead ends: 38 [2022-11-19 07:45:26,660 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 07:45:26,661 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 7 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:45:26,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 59 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:45:26,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-19 07:45:26,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-11-19 07:45:26,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.32) internal successors, (33), 30 states have internal predecessors, (33), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-19 07:45:26,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2022-11-19 07:45:26,670 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 47 transitions. Word has length 18 [2022-11-19 07:45:26,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:45:26,671 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 47 transitions. [2022-11-19 07:45:26,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:45:26,671 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2022-11-19 07:45:26,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 07:45:26,672 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:45:26,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:45:26,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:45:26,673 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:45:26,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:45:26,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1104801318, now seen corresponding path program 1 times [2022-11-19 07:45:26,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:45:26,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695004226] [2022-11-19 07:45:26,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:45:26,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:45:26,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:45:27,189 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 07:45:27,190 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:45:27,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695004226] [2022-11-19 07:45:27,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695004226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:45:27,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:45:27,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 07:45:27,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700212077] [2022-11-19 07:45:27,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:45:27,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:45:27,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:45:27,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:45:27,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:45:27,196 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:45:27,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:45:27,526 INFO L93 Difference]: Finished difference Result 169 states and 216 transitions. [2022-11-19 07:45:27,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 07:45:27,527 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-11-19 07:45:27,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:45:27,529 INFO L225 Difference]: With dead ends: 169 [2022-11-19 07:45:27,529 INFO L226 Difference]: Without dead ends: 133 [2022-11-19 07:45:27,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-19 07:45:27,532 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 185 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:45:27,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 180 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 07:45:27,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-11-19 07:45:27,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 94. [2022-11-19 07:45:27,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 63 states have (on average 1.2857142857142858) internal successors, (81), 72 states have internal predecessors, (81), 17 states have call successors, (17), 13 states have call predecessors, (17), 13 states have return successors, (19), 14 states have call predecessors, (19), 17 states have call successors, (19) [2022-11-19 07:45:27,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 117 transitions. [2022-11-19 07:45:27,555 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 117 transitions. Word has length 20 [2022-11-19 07:45:27,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:45:27,555 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 117 transitions. [2022-11-19 07:45:27,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:45:27,556 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 117 transitions. [2022-11-19 07:45:27,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-19 07:45:27,557 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:45:27,557 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:45:27,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:45:27,558 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:45:27,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:45:27,558 INFO L85 PathProgramCache]: Analyzing trace with hash -266505946, now seen corresponding path program 1 times [2022-11-19 07:45:27,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:45:27,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48286266] [2022-11-19 07:45:27,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:45:27,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:45:27,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:45:27,576 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 07:45:27,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:45:27,611 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 07:45:27,616 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 07:45:27,617 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:45:27,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:45:27,624 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-19 07:45:27,628 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:45:27,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:45:27 BoogieIcfgContainer [2022-11-19 07:45:27,679 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:45:27,680 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:45:27,681 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:45:27,681 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:45:27,681 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:45:25" (3/4) ... [2022-11-19 07:45:27,683 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-19 07:45:27,762 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a75c0a-ea62-4c71-b8eb-21cba32a1fc0/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:45:27,767 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:45:27,768 INFO L158 Benchmark]: Toolchain (without parser) took 3040.01ms. Allocated memory is still 146.8MB. Free memory was 114.1MB in the beginning and 81.3MB in the end (delta: 32.8MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2022-11-19 07:45:27,768 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 96.5MB. Free memory was 52.5MB in the beginning and 52.4MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:45:27,769 INFO L158 Benchmark]: CACSL2BoogieTranslator took 497.24ms. Allocated memory is still 146.8MB. Free memory was 113.8MB in the beginning and 115.1MB in the end (delta: -1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:45:27,770 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.78ms. Allocated memory is still 146.8MB. Free memory was 114.5MB in the beginning and 112.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:45:27,770 INFO L158 Benchmark]: Boogie Preprocessor took 46.07ms. Allocated memory is still 146.8MB. Free memory was 112.4MB in the beginning and 110.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:45:27,770 INFO L158 Benchmark]: RCFGBuilder took 651.57ms. Allocated memory is still 146.8MB. Free memory was 110.9MB in the beginning and 84.6MB in the end (delta: 26.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-19 07:45:27,771 INFO L158 Benchmark]: TraceAbstraction took 1696.70ms. Allocated memory is still 146.8MB. Free memory was 84.1MB in the beginning and 84.4MB in the end (delta: -355.5kB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. [2022-11-19 07:45:27,771 INFO L158 Benchmark]: Witness Printer took 86.79ms. Allocated memory is still 146.8MB. Free memory was 84.4MB in the beginning and 81.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:45:27,773 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 96.5MB. Free memory was 52.5MB in the beginning and 52.4MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 497.24ms. Allocated memory is still 146.8MB. Free memory was 113.8MB in the beginning and 115.1MB in the end (delta: -1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.78ms. Allocated memory is still 146.8MB. Free memory was 114.5MB in the beginning and 112.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.07ms. Allocated memory is still 146.8MB. Free memory was 112.4MB in the beginning and 110.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 651.57ms. Allocated memory is still 146.8MB. Free memory was 110.9MB in the beginning and 84.6MB in the end (delta: 26.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1696.70ms. Allocated memory is still 146.8MB. Free memory was 84.1MB in the beginning and 84.4MB in the end (delta: -355.5kB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. * Witness Printer took 86.79ms. Allocated memory is still 146.8MB. Free memory was 84.4MB in the beginning and 81.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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 - CounterExampleResult [Line: 328]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L502] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L196] int methaneLevelCritical = 0; [L703] int pumpRunning = 0; [L195] int waterLevel = 1; [L704] int systemActive = 1; [L50] int cleanupTimeShifts = 4; [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L315] int retValue_acc ; [L318] retValue_acc = 1 [L319] return (retValue_acc); [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L897] int splverifierCounter ; [L898] int tmp ; [L899] int tmp___0 ; [L900] int tmp___1 ; [L901] int tmp___2 ; [L904] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L906] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L908] COND TRUE splverifierCounter < 4 [L914] tmp = __VERIFIER_nondet_int() [L916] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L918] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L213] COND TRUE waterLevel < 2 [L214] waterLevel = waterLevel + 1 [L918] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L924] tmp___0 = __VERIFIER_nondet_int() [L926] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L934] tmp___2 = __VERIFIER_nondet_int() [L936] COND FALSE !(\read(tmp___2)) [L942] tmp___1 = __VERIFIER_nondet_int() [L944] COND TRUE \read(tmp___1) [L946] CALL stopSystem() [L876] COND FALSE !(\read(pumpRunning)) [L883] systemActive = 0 [L946] RET stopSystem() [L953] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L710] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L717] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L725] CALL __utac_acc__Specification3_spec__1() [L159] int tmp ; [L160] int tmp___0 ; [L161] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L165] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L234] int retValue_acc ; [L237] retValue_acc = methaneLevelCritical [L238] return (retValue_acc); [L165] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L165] tmp = isMethaneLevelCritical() [L167] COND FALSE !(\read(tmp)) [L171] CALL, EXPR getWaterLevel() [L266] int retValue_acc ; [L269] retValue_acc = waterLevel [L270] return (retValue_acc); [L171] RET, EXPR getWaterLevel() [L171] tmp___0 = getWaterLevel() [L173] COND TRUE tmp___0 == 2 [L175] CALL, EXPR isPumpRunning() [L809] int retValue_acc ; [L812] retValue_acc = pumpRunning [L813] return (retValue_acc); [L175] RET, EXPR isPumpRunning() [L175] tmp___1 = isPumpRunning() [L177] COND FALSE !(\read(tmp___1)) [L181] CALL __automaton_fail() [L328] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 196 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 192 mSDsluCounter, 287 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 153 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 206 IncrementalHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 134 mSDtfsCounter, 206 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=3, InterpolantAutomatonStates: 14, 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, 3 MinimizatonAttempts, 39 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 167 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 RESULT: Ultimate proved your program to be incorrect! [2022-11-19 07:45:27,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47a75c0a-ea62-4c71-b8eb-21cba32a1fc0/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE