./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product11.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_93bba5bf-4d99-46ae-b06f-e5db84409e10/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bba5bf-4d99-46ae-b06f-e5db84409e10/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_93bba5bf-4d99-46ae-b06f-e5db84409e10/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bba5bf-4d99-46ae-b06f-e5db84409e10/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product11.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bba5bf-4d99-46ae-b06f-e5db84409e10/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_93bba5bf-4d99-46ae-b06f-e5db84409e10/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 a02362aeafc2e43a1be9ec43f97ab5a222e55f9c6ade6d7cf376000405834eaa --- 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 07:27:01,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:27:01,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:27:01,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:27:01,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:27:01,168 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:27:01,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:27:01,171 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:27:01,173 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:27:01,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:27:01,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:27:01,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:27:01,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:27:01,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:27:01,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:27:01,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:27:01,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:27:01,183 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:27:01,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:27:01,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:27:01,189 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:27:01,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:27:01,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:27:01,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:27:01,196 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:27:01,197 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:27:01,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:27:01,198 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:27:01,199 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:27:01,200 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:27:01,200 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:27:01,201 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:27:01,202 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:27:01,203 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:27:01,204 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:27:01,204 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:27:01,205 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:27:01,205 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:27:01,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:27:01,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:27:01,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:27:01,212 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bba5bf-4d99-46ae-b06f-e5db84409e10/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:27:01,251 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:27:01,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:27:01,252 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:27:01,252 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:27:01,253 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:27:01,253 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:27:01,253 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:27:01,254 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:27:01,254 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:27:01,254 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:27:01,254 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:27:01,254 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:27:01,255 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:27:01,255 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:27:01,255 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:27:01,262 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:27:01,262 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:27:01,262 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:27:01,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:27:01,263 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:27:01,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:27:01,264 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:27:01,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:27:01,266 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:27:01,266 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:27:01,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:27:01,267 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:27:01,267 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:27:01,268 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:27:01,268 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:27:01,268 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:27:01,269 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:27:01,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:27:01,269 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:27:01,269 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:27:01,269 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:27:01,270 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:27:01,271 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:27:01,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:27:01,271 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:27:01,271 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:27:01,271 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_93bba5bf-4d99-46ae-b06f-e5db84409e10/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bba5bf-4d99-46ae-b06f-e5db84409e10/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a02362aeafc2e43a1be9ec43f97ab5a222e55f9c6ade6d7cf376000405834eaa [2022-11-19 07:27:01,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:27:01,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:27:01,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:27:01,605 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:27:01,607 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:27:01,609 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bba5bf-4d99-46ae-b06f-e5db84409e10/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/minepump_spec5_product11.cil.c [2022-11-19 07:27:01,684 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bba5bf-4d99-46ae-b06f-e5db84409e10/bin/utaipan-I9t0OCRTmS/data/ca8d40ae1/44a2645a7c9944809bf099c625cc4b51/FLAGc82e81c4a [2022-11-19 07:27:02,158 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:27:02,158 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bba5bf-4d99-46ae-b06f-e5db84409e10/sv-benchmarks/c/product-lines/minepump_spec5_product11.cil.c [2022-11-19 07:27:02,191 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bba5bf-4d99-46ae-b06f-e5db84409e10/bin/utaipan-I9t0OCRTmS/data/ca8d40ae1/44a2645a7c9944809bf099c625cc4b51/FLAGc82e81c4a [2022-11-19 07:27:02,505 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bba5bf-4d99-46ae-b06f-e5db84409e10/bin/utaipan-I9t0OCRTmS/data/ca8d40ae1/44a2645a7c9944809bf099c625cc4b51 [2022-11-19 07:27:02,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:27:02,509 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:27:02,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:27:02,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:27:02,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:27:02,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:27:02" (1/1) ... [2022-11-19 07:27:02,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1163b861 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:02, skipping insertion in model container [2022-11-19 07:27:02,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:27:02" (1/1) ... [2022-11-19 07:27:02,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:27:02,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:27:02,781 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_93bba5bf-4d99-46ae-b06f-e5db84409e10/sv-benchmarks/c/product-lines/minepump_spec5_product11.cil.c[2807,2820] [2022-11-19 07:27:02,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:27:02,876 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:27:02,892 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_93bba5bf-4d99-46ae-b06f-e5db84409e10/sv-benchmarks/c/product-lines/minepump_spec5_product11.cil.c[2807,2820] [2022-11-19 07:27:02,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:27:03,002 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:27:03,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:03 WrapperNode [2022-11-19 07:27:03,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:27:03,006 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:27:03,006 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:27:03,006 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:27:03,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:03" (1/1) ... [2022-11-19 07:27:03,037 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:03" (1/1) ... [2022-11-19 07:27:03,071 INFO L138 Inliner]: procedures = 53, calls = 95, calls flagged for inlining = 23, calls inlined = 17, statements flattened = 142 [2022-11-19 07:27:03,072 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:27:03,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:27:03,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:27:03,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:27:03,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:03" (1/1) ... [2022-11-19 07:27:03,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:03" (1/1) ... [2022-11-19 07:27:03,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:03" (1/1) ... [2022-11-19 07:27:03,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:03" (1/1) ... [2022-11-19 07:27:03,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:03" (1/1) ... [2022-11-19 07:27:03,119 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:03" (1/1) ... [2022-11-19 07:27:03,120 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:03" (1/1) ... [2022-11-19 07:27:03,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:03" (1/1) ... [2022-11-19 07:27:03,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:27:03,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:27:03,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:27:03,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:27:03,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:03" (1/1) ... [2022-11-19 07:27:03,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:27:03,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bba5bf-4d99-46ae-b06f-e5db84409e10/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:27:03,174 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bba5bf-4d99-46ae-b06f-e5db84409e10/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:27:03,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bba5bf-4d99-46ae-b06f-e5db84409e10/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:27:03,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:27:03,213 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-19 07:27:03,213 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-19 07:27:03,213 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-19 07:27:03,213 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-19 07:27:03,214 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-19 07:27:03,214 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-19 07:27:03,214 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-11-19 07:27:03,214 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-11-19 07:27:03,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:27:03,214 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-19 07:27:03,215 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-19 07:27:03,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:27:03,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:27:03,293 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:27:03,295 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:27:03,569 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:27:03,738 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:27:03,738 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 07:27:03,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:27:03 BoogieIcfgContainer [2022-11-19 07:27:03,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:27:03,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:27:03,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:27:03,762 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:27:03,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:27:02" (1/3) ... [2022-11-19 07:27:03,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e52486c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:27:03, skipping insertion in model container [2022-11-19 07:27:03,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:03" (2/3) ... [2022-11-19 07:27:03,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e52486c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:27:03, skipping insertion in model container [2022-11-19 07:27:03,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:27:03" (3/3) ... [2022-11-19 07:27:03,765 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product11.cil.c [2022-11-19 07:27:03,784 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:27:03,785 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:27:03,840 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:27:03,851 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;@c4b7718, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:27:03,851 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:27:03,861 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 31 states have internal predecessors, (38), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-19 07:27:03,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 07:27:03,875 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:27:03,876 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:27:03,877 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:27:03,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:27:03,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1483463337, now seen corresponding path program 1 times [2022-11-19 07:27:03,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:27:03,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429095220] [2022-11-19 07:27:03,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:27:03,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:27:04,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:27:04,130 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:27:04,131 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:27:04,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429095220] [2022-11-19 07:27:04,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429095220] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:27:04,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:27:04,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:27:04,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281393341] [2022-11-19 07:27:04,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:27:04,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:27:04,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:27:04,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:27:04,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:27:04,191 INFO L87 Difference]: Start difference. First operand has 42 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 31 states have internal predecessors, (38), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:27:04,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:27:04,307 INFO L93 Difference]: Finished difference Result 82 states and 109 transitions. [2022-11-19 07:27:04,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:27:04,310 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2022-11-19 07:27:04,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:27:04,325 INFO L225 Difference]: With dead ends: 82 [2022-11-19 07:27:04,325 INFO L226 Difference]: Without dead ends: 37 [2022-11-19 07:27:04,329 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 07:27:04,334 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:27:04,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:27:04,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-19 07:27:04,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-11-19 07:27:04,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 24 states have (on average 1.25) internal successors, (30), 27 states have internal predecessors, (30), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-19 07:27:04,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2022-11-19 07:27:04,388 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 19 [2022-11-19 07:27:04,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:27:04,389 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2022-11-19 07:27:04,391 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:27:04,391 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2022-11-19 07:27:04,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 07:27:04,394 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:27:04,395 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:27:04,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:27:04,396 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:27:04,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:27:04,399 INFO L85 PathProgramCache]: Analyzing trace with hash 625899866, now seen corresponding path program 1 times [2022-11-19 07:27:04,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:27:04,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728539817] [2022-11-19 07:27:04,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:27:04,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:27:04,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:27:04,574 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:27:04,575 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:27:04,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728539817] [2022-11-19 07:27:04,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728539817] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:27:04,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:27:04,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:27:04,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079045064] [2022-11-19 07:27:04,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:27:04,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:27:04,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:27:04,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:27:04,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:27:04,582 INFO L87 Difference]: Start difference. First operand 37 states and 45 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:27:04,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:27:04,631 INFO L93 Difference]: Finished difference Result 51 states and 61 transitions. [2022-11-19 07:27:04,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:27:04,633 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2022-11-19 07:27:04,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:27:04,638 INFO L225 Difference]: With dead ends: 51 [2022-11-19 07:27:04,639 INFO L226 Difference]: Without dead ends: 29 [2022-11-19 07:27:04,640 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 07:27:04,643 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 7 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:27:04,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 41 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:27:04,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-19 07:27:04,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-19 07:27:04,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.263157894736842) internal successors, (24), 22 states have internal predecessors, (24), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-19 07:27:04,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2022-11-19 07:27:04,657 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 20 [2022-11-19 07:27:04,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:27:04,658 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2022-11-19 07:27:04,659 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:27:04,660 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2022-11-19 07:27:04,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-19 07:27:04,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:27:04,661 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:27:04,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:27:04,662 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:27:04,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:27:04,664 INFO L85 PathProgramCache]: Analyzing trace with hash 288208379, now seen corresponding path program 1 times [2022-11-19 07:27:04,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:27:04,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161841521] [2022-11-19 07:27:04,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:27:04,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:27:04,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:27:05,242 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:27:05,242 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:27:05,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161841521] [2022-11-19 07:27:05,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161841521] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:27:05,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509299432] [2022-11-19 07:27:05,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:27:05,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:27:05,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bba5bf-4d99-46ae-b06f-e5db84409e10/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:27:05,252 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bba5bf-4d99-46ae-b06f-e5db84409e10/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:27:05,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bba5bf-4d99-46ae-b06f-e5db84409e10/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:27:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:27:05,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-19 07:27:05,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:27:05,513 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:27:05,513 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:27:05,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509299432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:27:05,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:27:05,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 15 [2022-11-19 07:27:05,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91057770] [2022-11-19 07:27:05,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:27:05,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 07:27:05,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:27:05,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 07:27:05,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-11-19 07:27:05,517 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 9 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 07:27:05,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:27:05,828 INFO L93 Difference]: Finished difference Result 65 states and 76 transitions. [2022-11-19 07:27:05,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 07:27:05,830 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2022-11-19 07:27:05,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:27:05,831 INFO L225 Difference]: With dead ends: 65 [2022-11-19 07:27:05,831 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 07:27:05,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2022-11-19 07:27:05,837 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 42 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:27:05,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 200 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:27:05,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 07:27:05,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 07:27:05,840 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 07:27:05,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 07:27:05,841 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2022-11-19 07:27:05,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:27:05,841 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 07:27:05,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 07:27:05,842 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 07:27:05,842 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 07:27:05,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:27:05,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bba5bf-4d99-46ae-b06f-e5db84409e10/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 07:27:06,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bba5bf-4d99-46ae-b06f-e5db84409e10/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:27:06,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 07:27:06,194 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 82 93) the Hoare annotation is: true [2022-11-19 07:27:06,194 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 82 93) no Hoare annotation was computed. [2022-11-19 07:27:06,194 INFO L895 garLoopResultBuilder]: At program point L895(line 895) the Hoare annotation is: (= ~pumpRunning~0 ~switchedOnBeforeTS~0) [2022-11-19 07:27:06,195 INFO L899 garLoopResultBuilder]: For program point L895-1(line 895) no Hoare annotation was computed. [2022-11-19 07:27:06,195 INFO L895 garLoopResultBuilder]: At program point L140(line 140) the Hoare annotation is: false [2022-11-19 07:27:06,195 INFO L895 garLoopResultBuilder]: At program point L880(line 880) the Hoare annotation is: (or (<= (+ ~switchedOnBeforeTS~0 1) 0) (<= 1 ~switchedOnBeforeTS~0) (and (not (<= (+ |old(~switchedOnBeforeTS~0)| 1) 0)) (not (<= 1 |old(~switchedOnBeforeTS~0)|)))) [2022-11-19 07:27:06,196 INFO L895 garLoopResultBuilder]: At program point L880-1(line 880) the Hoare annotation is: (and (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__2_#t~ret48#1|) (or (<= (+ ~switchedOnBeforeTS~0 1) 0) (<= 1 ~switchedOnBeforeTS~0) (and (not (<= (+ |old(~switchedOnBeforeTS~0)| 1) 0)) (not (<= 1 |old(~switchedOnBeforeTS~0)|))))) [2022-11-19 07:27:06,197 INFO L899 garLoopResultBuilder]: For program point L897(lines 897 907) no Hoare annotation was computed. [2022-11-19 07:27:06,197 INFO L899 garLoopResultBuilder]: For program point L893(lines 893 910) no Hoare annotation was computed. [2022-11-19 07:27:06,197 INFO L895 garLoopResultBuilder]: At program point L893-1(lines 885 913) the Hoare annotation is: (= ~pumpRunning~0 ~switchedOnBeforeTS~0) [2022-11-19 07:27:06,197 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 293 319) the Hoare annotation is: (or (<= (+ ~switchedOnBeforeTS~0 1) 0) (<= 1 ~switchedOnBeforeTS~0) (and (not (<= (+ |old(~switchedOnBeforeTS~0)| 1) 0)) (not (<= 1 |old(~switchedOnBeforeTS~0)|)))) [2022-11-19 07:27:06,197 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 293 319) no Hoare annotation was computed. [2022-11-19 07:27:06,198 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 140) no Hoare annotation was computed. [2022-11-19 07:27:06,198 INFO L899 garLoopResultBuilder]: For program point L898(lines 898 904) no Hoare annotation was computed. [2022-11-19 07:27:06,198 INFO L899 garLoopResultBuilder]: For program point L161(lines 161 165) no Hoare annotation was computed. [2022-11-19 07:27:06,198 INFO L902 garLoopResultBuilder]: At program point L161-1(lines 161 165) the Hoare annotation is: true [2022-11-19 07:27:06,199 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 147 176) no Hoare annotation was computed. [2022-11-19 07:27:06,199 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 147 176) the Hoare annotation is: true [2022-11-19 07:27:06,199 INFO L902 garLoopResultBuilder]: At program point L157-2(lines 157 171) the Hoare annotation is: true [2022-11-19 07:27:06,201 INFO L902 garLoopResultBuilder]: At program point L153(line 153) the Hoare annotation is: true [2022-11-19 07:27:06,201 INFO L899 garLoopResultBuilder]: For program point L153-1(line 153) no Hoare annotation was computed. [2022-11-19 07:27:06,201 INFO L902 garLoopResultBuilder]: At program point L172(lines 147 176) the Hoare annotation is: true [2022-11-19 07:27:06,202 INFO L899 garLoopResultBuilder]: For program point L168(line 168) no Hoare annotation was computed. [2022-11-19 07:27:06,204 INFO L899 garLoopResultBuilder]: For program point L444(lines 443 490) no Hoare annotation was computed. [2022-11-19 07:27:06,204 INFO L895 garLoopResultBuilder]: At program point L465(line 465) the Hoare annotation is: (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) [2022-11-19 07:27:06,204 INFO L902 garLoopResultBuilder]: At program point L494(lines 433 498) the Hoare annotation is: true [2022-11-19 07:27:06,205 INFO L899 garLoopResultBuilder]: For program point L453(lines 453 459) no Hoare annotation was computed. [2022-11-19 07:27:06,205 INFO L899 garLoopResultBuilder]: For program point L453-1(lines 453 459) no Hoare annotation was computed. [2022-11-19 07:27:06,205 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-19 07:27:06,205 INFO L895 garLoopResultBuilder]: At program point L235(lines 235 242) the Hoare annotation is: (= ~pumpRunning~0 ~switchedOnBeforeTS~0) [2022-11-19 07:27:06,205 INFO L895 garLoopResultBuilder]: At program point L491(lines 442 492) the Hoare annotation is: false [2022-11-19 07:27:06,205 INFO L902 garLoopResultBuilder]: At program point L235-2(lines 235 242) the Hoare annotation is: true [2022-11-19 07:27:06,205 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 07:27:06,206 INFO L895 garLoopResultBuilder]: At program point L479-2(lines 473 486) the Hoare annotation is: (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) [2022-11-19 07:27:06,206 INFO L899 garLoopResultBuilder]: For program point L463(lines 463 469) no Hoare annotation was computed. [2022-11-19 07:27:06,206 INFO L895 garLoopResultBuilder]: At program point L463-1(lines 463 469) the Hoare annotation is: (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) [2022-11-19 07:27:06,206 INFO L895 garLoopResultBuilder]: At program point L488(lines 443 490) the Hoare annotation is: (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) [2022-11-19 07:27:06,206 INFO L895 garLoopResultBuilder]: At program point L455(line 455) the Hoare annotation is: (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) [2022-11-19 07:27:06,206 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 70 81) no Hoare annotation was computed. [2022-11-19 07:27:06,206 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 70 81) the Hoare annotation is: true [2022-11-19 07:27:06,207 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 372 380) no Hoare annotation was computed. [2022-11-19 07:27:06,207 INFO L902 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 372 380) the Hoare annotation is: true [2022-11-19 07:27:06,210 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-19 07:27:06,213 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:27:06,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:27:06 BoogieIcfgContainer [2022-11-19 07:27:06,226 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:27:06,227 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:27:06,227 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:27:06,227 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:27:06,227 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:27:03" (3/4) ... [2022-11-19 07:27:06,233 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:27:06,242 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-19 07:27:06,243 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-19 07:27:06,243 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-19 07:27:06,243 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-19 07:27:06,243 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2022-11-19 07:27:06,249 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2022-11-19 07:27:06,250 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-19 07:27:06,250 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-19 07:27:06,251 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:27:06,251 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:27:06,278 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: pumpRunning == aux-isPumpRunning()-aux && ((switchedOnBeforeTS + 1 <= 0 || 1 <= switchedOnBeforeTS) || (!(\old(switchedOnBeforeTS) + 1 <= 0) && !(1 <= \old(switchedOnBeforeTS)))) [2022-11-19 07:27:06,304 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bba5bf-4d99-46ae-b06f-e5db84409e10/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:27:06,304 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:27:06,305 INFO L158 Benchmark]: Toolchain (without parser) took 3795.65ms. Allocated memory was 115.3MB in the beginning and 142.6MB in the end (delta: 27.3MB). Free memory was 78.5MB in the beginning and 70.7MB in the end (delta: 7.8MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. [2022-11-19 07:27:06,305 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 115.3MB. Free memory was 87.6MB in the beginning and 87.5MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:27:06,305 INFO L158 Benchmark]: CACSL2BoogieTranslator took 492.55ms. Allocated memory is still 115.3MB. Free memory was 78.3MB in the beginning and 82.8MB in the end (delta: -4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:27:06,306 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.51ms. Allocated memory is still 115.3MB. Free memory was 82.8MB in the beginning and 80.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:27:06,306 INFO L158 Benchmark]: Boogie Preprocessor took 50.64ms. Allocated memory is still 115.3MB. Free memory was 80.7MB in the beginning and 79.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:27:06,306 INFO L158 Benchmark]: RCFGBuilder took 624.63ms. Allocated memory is still 115.3MB. Free memory was 79.2MB in the beginning and 57.6MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-19 07:27:06,307 INFO L158 Benchmark]: TraceAbstraction took 2475.13ms. Allocated memory was 115.3MB in the beginning and 142.6MB in the end (delta: 27.3MB). Free memory was 57.0MB in the beginning and 74.9MB in the end (delta: -17.9MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2022-11-19 07:27:06,307 INFO L158 Benchmark]: Witness Printer took 77.64ms. Allocated memory is still 142.6MB. Free memory was 74.9MB in the beginning and 70.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 07:27:06,310 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 115.3MB. Free memory was 87.6MB in the beginning and 87.5MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 492.55ms. Allocated memory is still 115.3MB. Free memory was 78.3MB in the beginning and 82.8MB in the end (delta: -4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.51ms. Allocated memory is still 115.3MB. Free memory was 82.8MB in the beginning and 80.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.64ms. Allocated memory is still 115.3MB. Free memory was 80.7MB in the beginning and 79.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 624.63ms. Allocated memory is still 115.3MB. Free memory was 79.2MB in the beginning and 57.6MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2475.13ms. Allocated memory was 115.3MB in the beginning and 142.6MB in the end (delta: 27.3MB). Free memory was 57.0MB in the beginning and 74.9MB in the end (delta: -17.9MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * Witness Printer took 77.64ms. Allocated memory is still 142.6MB. Free memory was 74.9MB in the beginning and 70.7MB 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: 140]: 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 6 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 54 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 280 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 168 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 264 IncrementalHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 112 mSDtfsCounter, 264 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 77 PreInvPairs, 100 NumberOfFragments, 101 HoareAnnotationTreeSize, 77 FomulaSimplifications, 158 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 24 FomulaSimplificationsInter, 112 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 79 ConstructedInterpolants, 0 QuantifiedInterpolants, 230 SizeOfPredicates, 4 NumberOfNonLiveVariables, 171 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 7/8 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: 433]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 235]: Loop Invariant Derived loop invariant: pumpRunning == switchedOnBeforeTS - InvariantResult [Line: 885]: Loop Invariant Derived loop invariant: pumpRunning == switchedOnBeforeTS - InvariantResult [Line: 157]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 442]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 463]: Loop Invariant Derived loop invariant: splverifierCounter == 0 - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 147]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 235]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: pumpRunning == aux-isPumpRunning()-aux && ((switchedOnBeforeTS + 1 <= 0 || 1 <= switchedOnBeforeTS) || (!(\old(switchedOnBeforeTS) + 1 <= 0) && !(1 <= \old(switchedOnBeforeTS)))) - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: splverifierCounter == 0 RESULT: Ultimate proved your program to be correct! [2022-11-19 07:27:06,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bba5bf-4d99-46ae-b06f-e5db84409e10/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 Result: TRUE