./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d51f9b-01ce-4f08-882e-a87007b3c012/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d51f9b-01ce-4f08-882e-a87007b3c012/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_b9d51f9b-01ce-4f08-882e-a87007b3c012/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d51f9b-01ce-4f08-882e-a87007b3c012/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d51f9b-01ce-4f08-882e-a87007b3c012/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_b9d51f9b-01ce-4f08-882e-a87007b3c012/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 861f07fa59cb0cfcece09c1a4e6ddfbbabbcb5606dbdc5d8efc7c0dfaa196551 --- 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 01:50:45,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:50:45,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:50:45,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:50:45,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:50:45,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:50:45,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:50:45,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:50:45,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:50:45,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:50:45,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:50:45,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:50:45,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:50:45,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:50:45,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:50:45,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:50:45,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:50:45,954 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:50:45,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:50:45,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:50:45,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:50:45,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:50:45,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:50:45,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:50:45,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:50:45,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:50:45,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:50:45,968 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:50:45,969 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:50:45,970 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:50:45,970 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:50:45,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:50:45,972 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:50:45,973 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:50:45,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:50:45,975 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:50:45,975 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:50:45,976 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:50:45,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:50:45,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:50:45,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:50:45,978 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d51f9b-01ce-4f08-882e-a87007b3c012/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 01:50:46,008 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:50:46,009 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:50:46,009 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:50:46,009 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:50:46,010 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:50:46,010 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:50:46,011 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:50:46,011 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:50:46,011 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:50:46,012 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:50:46,012 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:50:46,012 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:50:46,012 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:50:46,013 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:50:46,013 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:50:46,013 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:50:46,013 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:50:46,014 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:50:46,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:50:46,015 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 01:50:46,015 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:50:46,015 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 01:50:46,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:50:46,016 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:50:46,016 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:50:46,016 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:50:46,017 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 01:50:46,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:50:46,017 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:50:46,017 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:50:46,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:50:46,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:50:46,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:50:46,029 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:50:46,029 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:50:46,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:50:46,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:50:46,030 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:50:46,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:50:46,030 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:50:46,031 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:50:46,031 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_b9d51f9b-01ce-4f08-882e-a87007b3c012/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d51f9b-01ce-4f08-882e-a87007b3c012/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 861f07fa59cb0cfcece09c1a4e6ddfbbabbcb5606dbdc5d8efc7c0dfaa196551 [2022-11-03 01:50:46,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:50:46,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:50:46,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:50:46,339 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:50:46,342 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:50:46,343 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d51f9b-01ce-4f08-882e-a87007b3c012/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c [2022-11-03 01:50:46,443 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d51f9b-01ce-4f08-882e-a87007b3c012/bin/utaipan-7li7fVZpFI/data/30e0902f3/267ff38674324451895ce04f85a1eb46/FLAG5d87bad92 [2022-11-03 01:50:46,920 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:50:46,925 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d51f9b-01ce-4f08-882e-a87007b3c012/sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c [2022-11-03 01:50:46,956 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d51f9b-01ce-4f08-882e-a87007b3c012/bin/utaipan-7li7fVZpFI/data/30e0902f3/267ff38674324451895ce04f85a1eb46/FLAG5d87bad92 [2022-11-03 01:50:47,264 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d51f9b-01ce-4f08-882e-a87007b3c012/bin/utaipan-7li7fVZpFI/data/30e0902f3/267ff38674324451895ce04f85a1eb46 [2022-11-03 01:50:47,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:50:47,273 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:50:47,279 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:50:47,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:50:47,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:50:47,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:50:47" (1/1) ... [2022-11-03 01:50:47,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@773c52aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:47, skipping insertion in model container [2022-11-03 01:50:47,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:50:47" (1/1) ... [2022-11-03 01:50:47,312 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:50:47,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:50:47,719 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_b9d51f9b-01ce-4f08-882e-a87007b3c012/sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c[14834,14847] [2022-11-03 01:50:47,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:50:47,743 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:50:47,802 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_b9d51f9b-01ce-4f08-882e-a87007b3c012/sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c[14834,14847] [2022-11-03 01:50:47,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:50:47,826 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:50:47,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:47 WrapperNode [2022-11-03 01:50:47,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:50:47,828 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:50:47,829 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:50:47,829 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:50:47,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:47" (1/1) ... [2022-11-03 01:50:47,864 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:47" (1/1) ... [2022-11-03 01:50:47,901 INFO L138 Inliner]: procedures = 53, calls = 151, calls flagged for inlining = 21, calls inlined = 17, statements flattened = 222 [2022-11-03 01:50:47,905 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:50:47,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:50:47,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:50:47,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:50:47,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:47" (1/1) ... [2022-11-03 01:50:47,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:47" (1/1) ... [2022-11-03 01:50:47,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:47" (1/1) ... [2022-11-03 01:50:47,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:47" (1/1) ... [2022-11-03 01:50:47,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:47" (1/1) ... [2022-11-03 01:50:47,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:47" (1/1) ... [2022-11-03 01:50:47,933 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:47" (1/1) ... [2022-11-03 01:50:47,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:47" (1/1) ... [2022-11-03 01:50:47,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:50:47,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:50:47,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:50:47,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:50:47,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:47" (1/1) ... [2022-11-03 01:50:47,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:50:47,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d51f9b-01ce-4f08-882e-a87007b3c012/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:50:47,989 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d51f9b-01ce-4f08-882e-a87007b3c012/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:50:47,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d51f9b-01ce-4f08-882e-a87007b3c012/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:50:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:50:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-03 01:50:48,025 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-03 01:50:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-03 01:50:48,025 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-03 01:50:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-03 01:50:48,026 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-03 01:50:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-03 01:50:48,026 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-03 01:50:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-03 01:50:48,026 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-03 01:50:48,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:50:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-03 01:50:48,034 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-03 01:50:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:50:48,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:50:48,113 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:50:48,115 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:50:48,395 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:50:48,681 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:50:48,681 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 01:50:48,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:50:48 BoogieIcfgContainer [2022-11-03 01:50:48,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:50:48,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:50:48,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:50:48,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:50:48,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:50:47" (1/3) ... [2022-11-03 01:50:48,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b2f6e19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:50:48, skipping insertion in model container [2022-11-03 01:50:48,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:50:47" (2/3) ... [2022-11-03 01:50:48,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b2f6e19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:50:48, skipping insertion in model container [2022-11-03 01:50:48,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:50:48" (3/3) ... [2022-11-03 01:50:48,740 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product19.cil.c [2022-11-03 01:50:48,792 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:50:48,793 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:50:48,865 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:50:48,873 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;@23112513, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:50:48,873 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:50:48,878 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 41 states have internal predecessors, (50), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-03 01:50:48,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 01:50:48,887 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:50:48,888 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:50:48,889 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:50:48,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:50:48,894 INFO L85 PathProgramCache]: Analyzing trace with hash 788978445, now seen corresponding path program 1 times [2022-11-03 01:50:48,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:50:48,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965285894] [2022-11-03 01:50:48,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:50:48,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:50:49,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:50:49,178 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 01:50:49,179 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:50:49,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965285894] [2022-11-03 01:50:49,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965285894] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:50:49,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:50:49,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:50:49,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035479728] [2022-11-03 01:50:49,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:50:49,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 01:50:49,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:50:49,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 01:50:49,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 01:50:49,219 INFO L87 Difference]: Start difference. First operand has 52 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 41 states have internal predecessors, (50), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:50:49,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:50:49,346 INFO L93 Difference]: Finished difference Result 102 states and 141 transitions. [2022-11-03 01:50:49,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 01:50:49,351 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-03 01:50:49,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:50:49,360 INFO L225 Difference]: With dead ends: 102 [2022-11-03 01:50:49,360 INFO L226 Difference]: Without dead ends: 47 [2022-11-03 01:50:49,364 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 01:50:49,374 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:50:49,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:50:49,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-03 01:50:49,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-11-03 01:50:49,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 37 states have internal predecessors, (42), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-03 01:50:49,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2022-11-03 01:50:49,445 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 12 [2022-11-03 01:50:49,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:50:49,446 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions. [2022-11-03 01:50:49,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:50:49,447 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2022-11-03 01:50:49,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-03 01:50:49,451 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:50:49,451 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:50:49,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:50:49,453 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:50:49,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:50:49,454 INFO L85 PathProgramCache]: Analyzing trace with hash -847807381, now seen corresponding path program 1 times [2022-11-03 01:50:49,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:50:49,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984150811] [2022-11-03 01:50:49,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:50:49,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:50:49,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:50:49,617 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 01:50:49,618 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:50:49,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984150811] [2022-11-03 01:50:49,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984150811] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:50:49,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:50:49,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:50:49,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086422779] [2022-11-03 01:50:49,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:50:49,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:50:49,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:50:49,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:50:49,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:50:49,622 INFO L87 Difference]: Start difference. First operand 47 states and 61 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:50:49,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:50:49,680 INFO L93 Difference]: Finished difference Result 66 states and 84 transitions. [2022-11-03 01:50:49,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:50:49,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-03 01:50:49,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:50:49,682 INFO L225 Difference]: With dead ends: 66 [2022-11-03 01:50:49,682 INFO L226 Difference]: Without dead ends: 39 [2022-11-03 01:50:49,683 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 01:50:49,685 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 14 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 59 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 01:50:49,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 59 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 01:50:49,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-03 01:50:49,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-03 01:50:49,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 32 states have internal predecessors, (36), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-03 01:50:49,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2022-11-03 01:50:49,694 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 50 transitions. Word has length 13 [2022-11-03 01:50:49,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:50:49,695 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 50 transitions. [2022-11-03 01:50:49,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:50:49,695 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2022-11-03 01:50:49,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 01:50:49,696 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:50:49,697 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:50:49,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:50:49,697 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:50:49,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:50:49,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1301086804, now seen corresponding path program 1 times [2022-11-03 01:50:49,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:50:49,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762975787] [2022-11-03 01:50:49,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:50:49,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:50:49,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:50:49,870 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 01:50:49,870 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:50:49,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762975787] [2022-11-03 01:50:49,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762975787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:50:49,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:50:49,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:50:49,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528241101] [2022-11-03 01:50:49,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:50:49,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:50:49,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:50:49,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:50:49,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:50:49,878 INFO L87 Difference]: Start difference. First operand 39 states and 50 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:50:50,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:50:50,056 INFO L93 Difference]: Finished difference Result 119 states and 160 transitions. [2022-11-03 01:50:50,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 01:50:50,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-03 01:50:50,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:50:50,059 INFO L225 Difference]: With dead ends: 119 [2022-11-03 01:50:50,060 INFO L226 Difference]: Without dead ends: 82 [2022-11-03 01:50:50,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 01:50:50,062 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 64 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:50:50,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 114 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:50:50,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-11-03 01:50:50,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 65. [2022-11-03 01:50:50,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 44 states have (on average 1.3863636363636365) internal successors, (61), 53 states have internal predecessors, (61), 11 states have call successors, (11), 9 states have call predecessors, (11), 9 states have return successors, (12), 8 states have call predecessors, (12), 11 states have call successors, (12) [2022-11-03 01:50:50,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 84 transitions. [2022-11-03 01:50:50,079 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 84 transitions. Word has length 16 [2022-11-03 01:50:50,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:50:50,080 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 84 transitions. [2022-11-03 01:50:50,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:50:50,081 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 84 transitions. [2022-11-03 01:50:50,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-03 01:50:50,082 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:50:50,082 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:50:50,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 01:50:50,082 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:50:50,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:50:50,083 INFO L85 PathProgramCache]: Analyzing trace with hash -153427954, now seen corresponding path program 1 times [2022-11-03 01:50:50,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:50:50,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366987078] [2022-11-03 01:50:50,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:50:50,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:50:50,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:50:50,342 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 01:50:50,343 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:50:50,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366987078] [2022-11-03 01:50:50,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366987078] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:50:50,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:50:50,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 01:50:50,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899760954] [2022-11-03 01:50:50,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:50:50,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:50:50,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:50:50,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:50:50,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:50:50,346 INFO L87 Difference]: Start difference. First operand 65 states and 84 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:50:50,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:50:50,440 INFO L93 Difference]: Finished difference Result 176 states and 234 transitions. [2022-11-03 01:50:50,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 01:50:50,441 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-03 01:50:50,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:50:50,443 INFO L225 Difference]: With dead ends: 176 [2022-11-03 01:50:50,443 INFO L226 Difference]: Without dead ends: 113 [2022-11-03 01:50:50,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:50:50,446 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 43 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:50:50,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 117 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:50:50,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-11-03 01:50:50,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 108. [2022-11-03 01:50:50,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 77 states have (on average 1.3376623376623376) internal successors, (103), 88 states have internal predecessors, (103), 16 states have call successors, (16), 14 states have call predecessors, (16), 14 states have return successors, (18), 13 states have call predecessors, (18), 16 states have call successors, (18) [2022-11-03 01:50:50,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 137 transitions. [2022-11-03 01:50:50,467 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 137 transitions. Word has length 19 [2022-11-03 01:50:50,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:50:50,468 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 137 transitions. [2022-11-03 01:50:50,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:50:50,468 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 137 transitions. [2022-11-03 01:50:50,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-03 01:50:50,470 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:50:50,470 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:50:50,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 01:50:50,470 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:50:50,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:50:50,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1431102939, now seen corresponding path program 1 times [2022-11-03 01:50:50,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:50:50,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952902834] [2022-11-03 01:50:50,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:50:50,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:50:50,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:50:50,801 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 01:50:50,802 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:50:50,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952902834] [2022-11-03 01:50:50,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952902834] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:50:50,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:50:50,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 01:50:50,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383910645] [2022-11-03 01:50:50,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:50:50,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 01:50:50,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:50:50,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 01:50:50,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 01:50:50,812 INFO L87 Difference]: Start difference. First operand 108 states and 137 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 01:50:51,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:50:51,020 INFO L93 Difference]: Finished difference Result 164 states and 211 transitions. [2022-11-03 01:50:51,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:50:51,021 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2022-11-03 01:50:51,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:50:51,022 INFO L225 Difference]: With dead ends: 164 [2022-11-03 01:50:51,022 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 01:50:51,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-11-03 01:50:51,025 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 102 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:50:51,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 127 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:50:51,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 01:50:51,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 01:50:51,027 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 01:50:51,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 01:50:51,027 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2022-11-03 01:50:51,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:50:51,028 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 01:50:51,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 01:50:51,028 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 01:50:51,029 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 01:50:51,032 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 01:50:51,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 01:50:51,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-03 01:50:52,011 INFO L902 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 587 594) the Hoare annotation is: true [2022-11-03 01:50:52,012 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 587 594) no Hoare annotation was computed. [2022-11-03 01:50:52,012 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 546 552) no Hoare annotation was computed. [2022-11-03 01:50:52,012 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 546 552) the Hoare annotation is: true [2022-11-03 01:50:52,012 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 449 460) the Hoare annotation is: true [2022-11-03 01:50:52,012 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 449 460) no Hoare annotation was computed. [2022-11-03 01:50:52,013 INFO L899 garLoopResultBuilder]: For program point L770-1(line 770) no Hoare annotation was computed. [2022-11-03 01:50:52,013 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 764 793) no Hoare annotation was computed. [2022-11-03 01:50:52,013 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 764 793) the Hoare annotation is: true [2022-11-03 01:50:52,013 INFO L902 garLoopResultBuilder]: At program point L789(lines 764 793) the Hoare annotation is: true [2022-11-03 01:50:52,013 INFO L899 garLoopResultBuilder]: For program point L785(line 785) no Hoare annotation was computed. [2022-11-03 01:50:52,013 INFO L899 garLoopResultBuilder]: For program point L778(lines 778 782) no Hoare annotation was computed. [2022-11-03 01:50:52,013 INFO L902 garLoopResultBuilder]: At program point L778-1(lines 778 782) the Hoare annotation is: true [2022-11-03 01:50:52,014 INFO L902 garLoopResultBuilder]: At program point L774-2(lines 774 788) the Hoare annotation is: true [2022-11-03 01:50:52,014 INFO L902 garLoopResultBuilder]: At program point L770(line 770) the Hoare annotation is: true [2022-11-03 01:50:52,014 INFO L895 garLoopResultBuilder]: At program point L568(line 568) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1))))) [2022-11-03 01:50:52,014 INFO L895 garLoopResultBuilder]: At program point L564(line 564) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1))))) [2022-11-03 01:50:52,015 INFO L895 garLoopResultBuilder]: At program point L573(line 573) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (not (= 0 ~systemActive~0)))) (and (or (and .cse0 (= ~waterLevel~0 1) .cse1) .cse2 (not (= |old(~waterLevel~0)| 1))) (or .cse2 (and .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) .cse1) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-03 01:50:52,015 INFO L895 garLoopResultBuilder]: At program point L573-1(lines 554 578) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (not (= 0 ~systemActive~0)))) (and (or (and .cse0 (= ~waterLevel~0 1) .cse1) .cse2 (not (= |old(~waterLevel~0)| 1))) (or .cse2 (and .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) .cse1) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-03 01:50:52,015 INFO L895 garLoopResultBuilder]: At program point L533-1(lines 533 539) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (= ~waterLevel~0 1))) (or .cse0 (and .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-03 01:50:52,015 INFO L899 garLoopResultBuilder]: For program point L562(lines 562 570) no Hoare annotation was computed. [2022-11-03 01:50:52,016 INFO L895 garLoopResultBuilder]: At program point L690(line 690) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1))))) [2022-11-03 01:50:52,016 INFO L895 garLoopResultBuilder]: At program point L558(lines 558 575) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (not (= 0 ~systemActive~0)))) (and (or (and .cse0 (= ~waterLevel~0 1) .cse1) .cse2 (not (= |old(~waterLevel~0)| 1))) (or .cse2 (and .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) .cse1) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-03 01:50:52,016 INFO L899 garLoopResultBuilder]: For program point L909(lines 909 915) no Hoare annotation was computed. [2022-11-03 01:50:52,016 INFO L895 garLoopResultBuilder]: At program point L905(lines 905 918) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 (and .cse1 (<= 2 |timeShift___utac_acc__Specification4_spec__1_~tmp~7#1|) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (<= 1 |timeShift___utac_acc__Specification4_spec__1_~tmp~7#1|) (= ~waterLevel~0 1))))) [2022-11-03 01:50:52,017 INFO L895 garLoopResultBuilder]: At program point L905-1(lines 897 921) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 (and .cse1 (<= 2 |timeShift___utac_acc__Specification4_spec__1_~tmp~7#1|) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (<= 1 |timeShift___utac_acc__Specification4_spec__1_~tmp~7#1|) (= ~waterLevel~0 1))))) [2022-11-03 01:50:52,017 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 522 545) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (= ~waterLevel~0 1))) (or .cse0 (and .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-03 01:50:52,017 INFO L899 garLoopResultBuilder]: For program point L526-1(lines 525 544) no Hoare annotation was computed. [2022-11-03 01:50:52,022 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 522 545) no Hoare annotation was computed. [2022-11-03 01:50:52,023 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 690) no Hoare annotation was computed. [2022-11-03 01:50:52,023 INFO L895 garLoopResultBuilder]: At program point L754(lines 705 755) the Hoare annotation is: false [2022-11-03 01:50:52,023 INFO L899 garLoopResultBuilder]: For program point L742(lines 742 748) no Hoare annotation was computed. [2022-11-03 01:50:52,023 INFO L895 garLoopResultBuilder]: At program point L676(line 676) the Hoare annotation is: false [2022-11-03 01:50:52,024 INFO L895 garLoopResultBuilder]: At program point L742-2(lines 736 749) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1))) [2022-11-03 01:50:52,024 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-03 01:50:52,024 INFO L899 garLoopResultBuilder]: For program point L726(lines 726 732) no Hoare annotation was computed. [2022-11-03 01:50:52,025 INFO L899 garLoopResultBuilder]: For program point L726-1(lines 726 732) no Hoare annotation was computed. [2022-11-03 01:50:52,027 INFO L895 garLoopResultBuilder]: At program point L751(lines 706 753) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1))) [2022-11-03 01:50:52,029 INFO L895 garLoopResultBuilder]: At program point L718(line 718) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1))) [2022-11-03 01:50:52,029 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-03 01:50:52,029 INFO L899 garLoopResultBuilder]: For program point L707(lines 706 753) no Hoare annotation was computed. [2022-11-03 01:50:52,030 INFO L899 garLoopResultBuilder]: For program point L674(lines 674 680) no Hoare annotation was computed. [2022-11-03 01:50:52,030 INFO L895 garLoopResultBuilder]: At program point L674-1(lines 674 680) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1))) [2022-11-03 01:50:52,030 INFO L899 garLoopResultBuilder]: For program point L736(lines 736 749) no Hoare annotation was computed. [2022-11-03 01:50:52,030 INFO L895 garLoopResultBuilder]: At program point L728(line 728) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1))) [2022-11-03 01:50:52,031 INFO L902 garLoopResultBuilder]: At program point L757(lines 696 761) the Hoare annotation is: true [2022-11-03 01:50:52,033 INFO L895 garLoopResultBuilder]: At program point L848(lines 848 855) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0) (not (= 0 ~systemActive~0))) [2022-11-03 01:50:52,033 INFO L902 garLoopResultBuilder]: At program point L848-2(lines 848 855) the Hoare annotation is: true [2022-11-03 01:50:52,033 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 722) no Hoare annotation was computed. [2022-11-03 01:50:52,034 INFO L899 garLoopResultBuilder]: For program point L716-1(lines 716 722) no Hoare annotation was computed. [2022-11-03 01:50:52,034 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 437 448) no Hoare annotation was computed. [2022-11-03 01:50:52,034 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 437 448) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)))) [2022-11-03 01:50:52,038 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-03 01:50:52,040 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 01:50:52,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 01:50:52 BoogieIcfgContainer [2022-11-03 01:50:52,083 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 01:50:52,084 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 01:50:52,084 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 01:50:52,085 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 01:50:52,085 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:50:48" (3/4) ... [2022-11-03 01:50:52,089 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 01:50:52,095 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-03 01:50:52,096 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-03 01:50:52,096 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-03 01:50:52,096 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-03 01:50:52,096 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-03 01:50:52,097 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-03 01:50:52,112 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 68 nodes and edges [2022-11-03 01:50:52,114 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-11-03 01:50:52,114 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-03 01:50:52,115 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-03 01:50:52,115 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 01:50:52,116 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 01:50:52,116 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 01:50:52,152 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) [2022-11-03 01:50:52,153 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) [2022-11-03 01:50:52,155 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive)) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) && ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(2 <= \old(waterLevel))) [2022-11-03 01:50:52,155 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive)) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) && ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(2 <= \old(waterLevel))) [2022-11-03 01:50:52,157 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && 2 <= tmp) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && 1 <= tmp) && waterLevel == 1)) [2022-11-03 01:50:52,157 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && 2 <= tmp) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && 1 <= tmp) && waterLevel == 1)) [2022-11-03 01:50:52,158 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(2 <= \old(waterLevel))) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) [2022-11-03 01:50:52,200 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d51f9b-01ce-4f08-882e-a87007b3c012/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 01:50:52,200 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 01:50:52,202 INFO L158 Benchmark]: Toolchain (without parser) took 4927.96ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 56.0MB in the beginning and 46.7MB in the end (delta: 9.2MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2022-11-03 01:50:52,203 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 102.8MB. Free memory was 73.6MB in the beginning and 73.5MB in the end (delta: 46.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:50:52,203 INFO L158 Benchmark]: CACSL2BoogieTranslator took 548.46ms. Allocated memory is still 102.8MB. Free memory was 55.7MB in the beginning and 70.7MB in the end (delta: -15.0MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2022-11-03 01:50:52,203 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.26ms. Allocated memory is still 102.8MB. Free memory was 70.7MB in the beginning and 68.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 01:50:52,204 INFO L158 Benchmark]: Boogie Preprocessor took 31.20ms. Allocated memory is still 102.8MB. Free memory was 68.1MB in the beginning and 66.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 01:50:52,205 INFO L158 Benchmark]: RCFGBuilder took 746.55ms. Allocated memory is still 102.8MB. Free memory was 66.4MB in the beginning and 38.7MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-03 01:50:52,205 INFO L158 Benchmark]: TraceAbstraction took 3361.25ms. Allocated memory is still 123.7MB. Free memory was 99.4MB in the beginning and 50.9MB in the end (delta: 48.5MB). Peak memory consumption was 64.5MB. Max. memory is 16.1GB. [2022-11-03 01:50:52,206 INFO L158 Benchmark]: Witness Printer took 116.10ms. Allocated memory is still 123.7MB. Free memory was 50.9MB in the beginning and 46.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 01:50:52,209 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 102.8MB. Free memory was 73.6MB in the beginning and 73.5MB in the end (delta: 46.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 548.46ms. Allocated memory is still 102.8MB. Free memory was 55.7MB in the beginning and 70.7MB in the end (delta: -15.0MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.26ms. Allocated memory is still 102.8MB. Free memory was 70.7MB in the beginning and 68.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.20ms. Allocated memory is still 102.8MB. Free memory was 68.1MB in the beginning and 66.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 746.55ms. Allocated memory is still 102.8MB. Free memory was 66.4MB in the beginning and 38.7MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 3361.25ms. Allocated memory is still 123.7MB. Free memory was 99.4MB in the beginning and 50.9MB in the end (delta: 48.5MB). Peak memory consumption was 64.5MB. Max. memory is 16.1GB. * Witness Printer took 116.10ms. Allocated memory is still 123.7MB. Free memory was 50.9MB in the beginning and 46.7MB 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: 690]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 228 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 223 mSDsluCounter, 469 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 316 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 244 IncrementalHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 217 mSDtfsCounter, 244 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=4, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 22 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 30 LocationsWithAnnotation, 204 PreInvPairs, 247 NumberOfFragments, 481 HoareAnnotationTreeSize, 204 FomulaSimplifications, 86 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 30 FomulaSimplificationsInter, 1015 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 77 ConstructedInterpolants, 0 QuantifiedInterpolants, 300 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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: 774]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 705]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 674]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && splverifierCounter == 0) && waterLevel == 1) || ((pumpRunning == 0 && 2 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 706]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && splverifierCounter == 0) && waterLevel == 1) || ((pumpRunning == 0 && 2 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 522]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 696]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 690]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(2 <= \old(waterLevel))) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) - InvariantResult [Line: 558]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive)) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) && ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 533]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 848]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && waterLevel == 1) && tmp == systemActive) && !(0 == systemActive) - InvariantResult [Line: 554]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive)) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) && ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 764]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 905]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && 2 <= tmp) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && 1 <= tmp) && waterLevel == 1)) - InvariantResult [Line: 848]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 897]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && 2 <= tmp) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && 1 <= tmp) && waterLevel == 1)) RESULT: Ultimate proved your program to be correct! [2022-11-03 01:50:52,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9d51f9b-01ce-4f08-882e-a87007b3c012/bin/utaipan-7li7fVZpFI/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