./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product01.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_93b550fc-4e2a-4246-8561-93fd2a5a8c5b/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93b550fc-4e2a-4246-8561-93fd2a5a8c5b/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93b550fc-4e2a-4246-8561-93fd2a5a8c5b/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93b550fc-4e2a-4246-8561-93fd2a5a8c5b/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product01.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93b550fc-4e2a-4246-8561-93fd2a5a8c5b/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93b550fc-4e2a-4246-8561-93fd2a5a8c5b/bin/utaipan-7li7fVZpFI --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 47239d678f7aaf21a2fed69a46673ac27eceb8c724d4476eded10389fccd5c92 --- 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-5e519f3 [2022-11-03 04:11:07,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:11:07,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:11:07,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:11:07,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:11:07,919 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:11:07,921 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:11:07,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:11:07,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:11:07,935 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:11:07,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:11:07,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:11:07,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:11:07,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:11:07,944 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:11:07,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:11:07,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:11:07,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:11:07,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:11:07,959 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:11:07,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:11:07,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:11:07,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:11:07,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:11:07,971 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:11:07,971 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:11:07,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:11:07,972 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:11:07,973 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:11:07,974 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:11:07,974 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:11:07,975 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:11:07,976 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:11:07,977 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:11:07,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:11:07,979 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:11:07,980 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:11:07,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:11:07,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:11:07,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:11:07,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:11:07,984 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93b550fc-4e2a-4246-8561-93fd2a5a8c5b/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 04:11:08,032 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:11:08,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:11:08,033 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:11:08,034 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:11:08,035 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:11:08,035 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:11:08,036 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:11:08,036 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:11:08,036 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:11:08,036 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 04:11:08,038 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:11:08,038 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:11:08,038 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 04:11:08,039 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 04:11:08,039 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:11:08,039 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 04:11:08,039 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 04:11:08,040 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 04:11:08,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:11:08,041 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 04:11:08,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 04:11:08,042 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 04:11:08,042 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:11:08,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:11:08,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:11:08,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:11:08,043 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 04:11:08,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:11:08,044 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:11:08,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:11:08,044 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:11:08,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:11:08,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:11:08,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:11:08,046 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 04:11:08,047 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:11:08,047 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:11:08,047 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 04:11:08,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 04:11:08,048 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:11:08,048 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:11:08,048 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_93b550fc-4e2a-4246-8561-93fd2a5a8c5b/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93b550fc-4e2a-4246-8561-93fd2a5a8c5b/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47239d678f7aaf21a2fed69a46673ac27eceb8c724d4476eded10389fccd5c92 [2022-11-03 04:11:08,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:11:08,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:11:08,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:11:08,335 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:11:08,335 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:11:08,337 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93b550fc-4e2a-4246-8561-93fd2a5a8c5b/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/minepump_spec2_product01.cil.c [2022-11-03 04:11:08,424 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93b550fc-4e2a-4246-8561-93fd2a5a8c5b/bin/utaipan-7li7fVZpFI/data/ed0730a5e/e9f81eb2dd4f442e8f45606272808efd/FLAGdedf74548 [2022-11-03 04:11:09,156 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:11:09,160 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93b550fc-4e2a-4246-8561-93fd2a5a8c5b/sv-benchmarks/c/product-lines/minepump_spec2_product01.cil.c [2022-11-03 04:11:09,172 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93b550fc-4e2a-4246-8561-93fd2a5a8c5b/bin/utaipan-7li7fVZpFI/data/ed0730a5e/e9f81eb2dd4f442e8f45606272808efd/FLAGdedf74548 [2022-11-03 04:11:09,434 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93b550fc-4e2a-4246-8561-93fd2a5a8c5b/bin/utaipan-7li7fVZpFI/data/ed0730a5e/e9f81eb2dd4f442e8f45606272808efd [2022-11-03 04:11:09,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:11:09,440 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:11:09,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:11:09,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:11:09,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:11:09,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:11:09" (1/1) ... [2022-11-03 04:11:09,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f5bf551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:09, skipping insertion in model container [2022-11-03 04:11:09,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:11:09" (1/1) ... [2022-11-03 04:11:09,463 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:11:09,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:11:10,013 WARN L230 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_93b550fc-4e2a-4246-8561-93fd2a5a8c5b/sv-benchmarks/c/product-lines/minepump_spec2_product01.cil.c[17118,17131] [2022-11-03 04:11:10,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:11:10,037 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:11:10,138 WARN L230 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_93b550fc-4e2a-4246-8561-93fd2a5a8c5b/sv-benchmarks/c/product-lines/minepump_spec2_product01.cil.c[17118,17131] [2022-11-03 04:11:10,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:11:10,167 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:11:10,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:10 WrapperNode [2022-11-03 04:11:10,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:11:10,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:11:10,170 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:11:10,170 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:11:10,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:10" (1/1) ... [2022-11-03 04:11:10,208 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:10" (1/1) ... [2022-11-03 04:11:10,250 INFO L138 Inliner]: procedures = 50, calls = 145, calls flagged for inlining = 17, calls inlined = 14, statements flattened = 188 [2022-11-03 04:11:10,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:11:10,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:11:10,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:11:10,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:11:10,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:10" (1/1) ... [2022-11-03 04:11:10,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:10" (1/1) ... [2022-11-03 04:11:10,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:10" (1/1) ... [2022-11-03 04:11:10,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:10" (1/1) ... [2022-11-03 04:11:10,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:10" (1/1) ... [2022-11-03 04:11:10,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:10" (1/1) ... [2022-11-03 04:11:10,312 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:10" (1/1) ... [2022-11-03 04:11:10,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:10" (1/1) ... [2022-11-03 04:11:10,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:11:10,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:11:10,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:11:10,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:11:10,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:10" (1/1) ... [2022-11-03 04:11:10,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:11:10,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93b550fc-4e2a-4246-8561-93fd2a5a8c5b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:11:10,357 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93b550fc-4e2a-4246-8561-93fd2a5a8c5b/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:11:10,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93b550fc-4e2a-4246-8561-93fd2a5a8c5b/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:11:10,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 04:11:10,407 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-03 04:11:10,407 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-03 04:11:10,407 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-03 04:11:10,407 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-03 04:11:10,408 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-03 04:11:10,408 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-03 04:11:10,408 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-03 04:11:10,408 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-03 04:11:10,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 04:11:10,409 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-03 04:11:10,409 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-03 04:11:10,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:11:10,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:11:10,534 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:11:10,537 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:11:10,913 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:11:11,001 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:11:11,001 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 04:11:11,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:11:11 BoogieIcfgContainer [2022-11-03 04:11:11,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:11:11,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:11:11,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:11:11,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:11:11,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:11:09" (1/3) ... [2022-11-03 04:11:11,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62f33138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:11:11, skipping insertion in model container [2022-11-03 04:11:11,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:10" (2/3) ... [2022-11-03 04:11:11,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62f33138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:11:11, skipping insertion in model container [2022-11-03 04:11:11,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:11:11" (3/3) ... [2022-11-03 04:11:11,014 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product01.cil.c [2022-11-03 04:11:11,033 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:11:11,033 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 04:11:11,167 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:11:11,187 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;@4819c0d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:11:11,188 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 04:11:11,193 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 30 states have internal predecessors, (37), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-03 04:11:11,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 04:11:11,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:11:11,203 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:11:11,204 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:11:11,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:11:11,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1267769686, now seen corresponding path program 1 times [2022-11-03 04:11:11,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:11:11,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886661687] [2022-11-03 04:11:11,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:11,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:11:11,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:11,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:11:11,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:11:11,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886661687] [2022-11-03 04:11:11,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886661687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:11:11,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:11:11,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 04:11:11,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826901389] [2022-11-03 04:11:11,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:11:11,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 04:11:11,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:11:11,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 04:11:11,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 04:11:11,537 INFO L87 Difference]: Start difference. First operand has 40 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 30 states have internal predecessors, (37), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-11-03 04:11:11,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:11:11,598 INFO L93 Difference]: Finished difference Result 78 states and 103 transitions. [2022-11-03 04:11:11,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 04:11:11,602 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 15 [2022-11-03 04:11:11,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:11:11,610 INFO L225 Difference]: With dead ends: 78 [2022-11-03 04:11:11,610 INFO L226 Difference]: Without dead ends: 35 [2022-11-03 04:11:11,615 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 [2022-11-03 04:11:11,621 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:11:11,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 04:11:11,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-03 04:11:11,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-03 04:11:11,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 26 states have internal predecessors, (29), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:11:11,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2022-11-03 04:11:11,673 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 15 [2022-11-03 04:11:11,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:11:11,674 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2022-11-03 04:11:11,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-11-03 04:11:11,676 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2022-11-03 04:11:11,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 04:11:11,680 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:11:11,681 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:11:11,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 04:11:11,681 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:11:11,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:11:11,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1577451457, now seen corresponding path program 1 times [2022-11-03 04:11:11,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:11:11,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250764788] [2022-11-03 04:11:11,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:11,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:11:11,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:11,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:11:11,807 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:11:11,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250764788] [2022-11-03 04:11:11,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250764788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:11:11,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:11:11,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:11:11,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26074154] [2022-11-03 04:11:11,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:11:11,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:11:11,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:11:11,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:11:11,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:11:11,811 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 04:11:11,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:11:11,857 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2022-11-03 04:11:11,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:11:11,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-11-03 04:11:11,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:11:11,859 INFO L225 Difference]: With dead ends: 47 [2022-11-03 04:11:11,859 INFO L226 Difference]: Without dead ends: 27 [2022-11-03 04:11:11,859 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 [2022-11-03 04:11:11,861 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 7 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:11:11,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 33 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 04:11:11,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-03 04:11:11,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-03 04:11:11,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 21 states have internal predecessors, (23), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 04:11:11,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2022-11-03 04:11:11,867 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 16 [2022-11-03 04:11:11,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:11:11,868 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2022-11-03 04:11:11,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 04:11:11,868 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-11-03 04:11:11,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 04:11:11,869 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:11:11,869 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:11:11,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 04:11:11,870 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:11:11,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:11:11,883 INFO L85 PathProgramCache]: Analyzing trace with hash 433976747, now seen corresponding path program 1 times [2022-11-03 04:11:11,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:11:11,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591953035] [2022-11-03 04:11:11,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:11,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:11:11,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:12,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:11:12,150 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:11:12,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591953035] [2022-11-03 04:11:12,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591953035] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:11:12,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:11:12,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:11:12,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303034092] [2022-11-03 04:11:12,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:11:12,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:11:12,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:11:12,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:11:12,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:11:12,157 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 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) [2022-11-03 04:11:12,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:11:12,323 INFO L93 Difference]: Finished difference Result 74 states and 87 transitions. [2022-11-03 04:11:12,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 04:11:12,324 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 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 18 [2022-11-03 04:11:12,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:11:12,329 INFO L225 Difference]: With dead ends: 74 [2022-11-03 04:11:12,331 INFO L226 Difference]: Without dead ends: 49 [2022-11-03 04:11:12,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-03 04:11:12,334 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 13 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:11:12,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 103 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:11:12,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-03 04:11:12,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2022-11-03 04:11:12,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 34 states have internal predecessors, (37), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-03 04:11:12,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2022-11-03 04:11:12,355 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 18 [2022-11-03 04:11:12,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:11:12,355 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2022-11-03 04:11:12,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 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) [2022-11-03 04:11:12,356 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2022-11-03 04:11:12,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 04:11:12,357 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:11:12,357 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] [2022-11-03 04:11:12,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 04:11:12,357 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:11:12,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:11:12,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1687829655, now seen corresponding path program 1 times [2022-11-03 04:11:12,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:11:12,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123481506] [2022-11-03 04:11:12,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:12,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:11:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:12,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:11:12,465 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:11:12,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123481506] [2022-11-03 04:11:12,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123481506] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:11:12,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:11:12,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:11:12,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043171194] [2022-11-03 04:11:12,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:11:12,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:11:12,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:11:12,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:11:12,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:11:12,470 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 04:11:12,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:11:12,527 INFO L93 Difference]: Finished difference Result 69 states and 80 transitions. [2022-11-03 04:11:12,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:11:12,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-11-03 04:11:12,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:11:12,528 INFO L225 Difference]: With dead ends: 69 [2022-11-03 04:11:12,529 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 04:11:12,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:11:12,531 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 16 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:11:12,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 34 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 04:11:12,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 04:11:12,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 04:11:12,537 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) [2022-11-03 04:11:12,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 04:11:12,537 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2022-11-03 04:11:12,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:11:12,538 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 04:11:12,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 04:11:12,538 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 04:11:12,539 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 04:11:12,541 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 04:11:12,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 04:11:12,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-03 04:11:12,672 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 803 814) the Hoare annotation is: true [2022-11-03 04:11:12,673 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 803 814) no Hoare annotation was computed. [2022-11-03 04:11:12,673 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 273 302) no Hoare annotation was computed. [2022-11-03 04:11:12,673 INFO L899 garLoopResultBuilder]: For program point L287(lines 287 291) no Hoare annotation was computed. [2022-11-03 04:11:12,673 INFO L902 garLoopResultBuilder]: At program point L287-1(lines 287 291) the Hoare annotation is: true [2022-11-03 04:11:12,674 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 273 302) the Hoare annotation is: true [2022-11-03 04:11:12,674 INFO L902 garLoopResultBuilder]: At program point L283-2(lines 283 297) the Hoare annotation is: true [2022-11-03 04:11:12,674 INFO L902 garLoopResultBuilder]: At program point L279(line 279) the Hoare annotation is: true [2022-11-03 04:11:12,674 INFO L899 garLoopResultBuilder]: For program point L279-1(line 279) no Hoare annotation was computed. [2022-11-03 04:11:12,674 INFO L902 garLoopResultBuilder]: At program point L298(lines 273 302) the Hoare annotation is: true [2022-11-03 04:11:12,675 INFO L899 garLoopResultBuilder]: For program point L294(line 294) no Hoare annotation was computed. [2022-11-03 04:11:12,675 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 815 823) the Hoare annotation is: true [2022-11-03 04:11:12,675 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 815 823) no Hoare annotation was computed. [2022-11-03 04:11:12,675 INFO L899 garLoopResultBuilder]: For program point L386-1(line 386) no Hoare annotation was computed. [2022-11-03 04:11:12,675 INFO L895 garLoopResultBuilder]: At program point L861(line 861) the Hoare annotation is: (not (= ~pumpRunning~0 0)) [2022-11-03 04:11:12,676 INFO L899 garLoopResultBuilder]: For program point L393(lines 393 399) no Hoare annotation was computed. [2022-11-03 04:11:12,676 INFO L902 garLoopResultBuilder]: At program point timeShiftENTRY(lines 62 85) the Hoare annotation is: true [2022-11-03 04:11:12,676 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 62 85) no Hoare annotation was computed. [2022-11-03 04:11:12,676 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 861) no Hoare annotation was computed. [2022-11-03 04:11:12,676 INFO L899 garLoopResultBuilder]: For program point L392(lines 392 402) no Hoare annotation was computed. [2022-11-03 04:11:12,677 INFO L895 garLoopResultBuilder]: At program point L388(lines 388 405) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= ~methaneLevelCritical~0 0)) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~2#1| 0)) [2022-11-03 04:11:12,677 INFO L895 garLoopResultBuilder]: At program point L388-1(lines 380 408) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= ~methaneLevelCritical~0 0)) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~2#1| 0)) [2022-11-03 04:11:12,677 INFO L902 garLoopResultBuilder]: At program point L386(line 386) the Hoare annotation is: true [2022-11-03 04:11:12,678 INFO L895 garLoopResultBuilder]: At program point L225(lines 178 226) the Hoare annotation is: false [2022-11-03 04:11:12,678 INFO L899 garLoopResultBuilder]: For program point L180(lines 179 224) no Hoare annotation was computed. [2022-11-03 04:11:12,678 INFO L895 garLoopResultBuilder]: At program point L201(line 201) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-03 04:11:12,678 INFO L895 garLoopResultBuilder]: At program point L222(lines 179 224) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-03 04:11:12,678 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-03 04:11:12,679 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 195) no Hoare annotation was computed. [2022-11-03 04:11:12,679 INFO L899 garLoopResultBuilder]: For program point L189-1(lines 189 195) no Hoare annotation was computed. [2022-11-03 04:11:12,679 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-03 04:11:12,679 INFO L895 garLoopResultBuilder]: At program point L215-2(lines 209 220) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-03 04:11:12,679 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 205) no Hoare annotation was computed. [2022-11-03 04:11:12,680 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 199 205) no Hoare annotation was computed. [2022-11-03 04:11:12,680 INFO L895 garLoopResultBuilder]: At program point L356(lines 356 363) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0)) [2022-11-03 04:11:12,680 INFO L902 garLoopResultBuilder]: At program point L228(lines 169 232) the Hoare annotation is: true [2022-11-03 04:11:12,680 INFO L902 garLoopResultBuilder]: At program point L356-2(lines 356 363) the Hoare annotation is: true [2022-11-03 04:11:12,681 INFO L895 garLoopResultBuilder]: At program point L191(line 191) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-03 04:11:12,681 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 791 802) no Hoare annotation was computed. [2022-11-03 04:11:12,681 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 791 802) the Hoare annotation is: true [2022-11-03 04:11:12,684 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-03 04:11:12,687 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 04:11:12,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:11:12 BoogieIcfgContainer [2022-11-03 04:11:12,700 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 04:11:12,700 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 04:11:12,701 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 04:11:12,701 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 04:11:12,701 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:11:11" (3/4) ... [2022-11-03 04:11:12,705 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 04:11:12,714 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-03 04:11:12,715 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-03 04:11:12,715 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-03 04:11:12,715 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-03 04:11:12,715 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-03 04:11:12,728 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 66 nodes and edges [2022-11-03 04:11:12,729 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-11-03 04:11:12,730 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-03 04:11:12,731 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-03 04:11:12,731 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 04:11:12,731 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 04:11:12,732 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 04:11:12,801 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93b550fc-4e2a-4246-8561-93fd2a5a8c5b/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 04:11:12,802 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 04:11:12,802 INFO L158 Benchmark]: Toolchain (without parser) took 3362.86ms. Allocated memory is still 127.9MB. Free memory was 96.1MB in the beginning and 55.1MB in the end (delta: 41.0MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. [2022-11-03 04:11:12,803 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 98.6MB. Free memory was 53.7MB in the beginning and 53.7MB in the end (delta: 42.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 04:11:12,803 INFO L158 Benchmark]: CACSL2BoogieTranslator took 723.09ms. Allocated memory is still 127.9MB. Free memory was 95.8MB in the beginning and 97.1MB in the end (delta: -1.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 04:11:12,804 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.73ms. Allocated memory is still 127.9MB. Free memory was 97.1MB in the beginning and 95.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 04:11:12,804 INFO L158 Benchmark]: Boogie Preprocessor took 64.33ms. Allocated memory is still 127.9MB. Free memory was 95.0MB in the beginning and 93.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 04:11:12,804 INFO L158 Benchmark]: RCFGBuilder took 688.44ms. Allocated memory is still 127.9MB. Free memory was 93.3MB in the beginning and 69.0MB in the end (delta: 24.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-03 04:11:12,805 INFO L158 Benchmark]: TraceAbstraction took 1693.52ms. Allocated memory is still 127.9MB. Free memory was 68.6MB in the beginning and 60.1MB in the end (delta: 8.5MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2022-11-03 04:11:12,805 INFO L158 Benchmark]: Witness Printer took 101.46ms. Allocated memory is still 127.9MB. Free memory was 59.3MB in the beginning and 55.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 04:11:12,807 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 98.6MB. Free memory was 53.7MB in the beginning and 53.7MB in the end (delta: 42.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 723.09ms. Allocated memory is still 127.9MB. Free memory was 95.8MB in the beginning and 97.1MB in the end (delta: -1.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.73ms. Allocated memory is still 127.9MB. Free memory was 97.1MB in the beginning and 95.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.33ms. Allocated memory is still 127.9MB. Free memory was 95.0MB in the beginning and 93.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 688.44ms. Allocated memory is still 127.9MB. Free memory was 93.3MB in the beginning and 69.0MB in the end (delta: 24.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1693.52ms. Allocated memory is still 127.9MB. Free memory was 68.6MB in the beginning and 60.1MB in the end (delta: 8.5MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * Witness Printer took 101.46ms. Allocated memory is still 127.9MB. Free memory was 59.3MB in the beginning and 55.1MB 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: 861]: 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, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 205 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 150 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 115 IncrementalHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 96 mSDtfsCounter, 115 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=3, InterpolantAutomatonStates: 17, 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, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 79 PreInvPairs, 92 NumberOfFragments, 77 HoareAnnotationTreeSize, 79 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 22 FomulaSimplificationsInter, 117 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 124 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 356]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 169]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 380]: Loop Invariant Derived loop invariant: (!(pumpRunning == 0) || !(methaneLevelCritical == 0)) || tmp == 0 - InvariantResult [Line: 283]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 356]: Loop Invariant Derived loop invariant: pumpRunning == 0 && methaneLevelCritical == 0 - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 861]: Loop Invariant Derived loop invariant: !(pumpRunning == 0) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 388]: Loop Invariant Derived loop invariant: (!(pumpRunning == 0) || !(methaneLevelCritical == 0)) || tmp == 0 - InvariantResult [Line: 273]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 RESULT: Ultimate proved your program to be correct! [2022-11-03 04:11:12,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93b550fc-4e2a-4246-8561-93fd2a5a8c5b/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE