./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan --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 f64c2f4b711d318d41e4cf94931ea5c2c39d9f20 ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan --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 f64c2f4b711d318d41e4cf94931ea5c2c39d9f20 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:59:01,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:59:01,858 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:59:01,907 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:59:01,933 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:59:01,938 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:59:01,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:59:01,949 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:59:01,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:59:01,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:59:01,955 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:59:01,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:59:01,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:59:01,958 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:59:01,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:59:01,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:59:01,962 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:59:01,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:59:01,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:59:01,967 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:59:01,969 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:59:01,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:59:01,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:59:01,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:59:01,985 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:59:01,985 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:59:01,986 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:59:01,987 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:59:01,987 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:59:01,992 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:59:01,992 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:59:01,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:59:01,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:59:01,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:59:01,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:59:01,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:59:01,998 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:59:01,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:59:01,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:59:02,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:59:02,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:59:02,002 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 12:59:02,039 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:59:02,039 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:59:02,044 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:59:02,045 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:59:02,045 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:59:02,045 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:59:02,045 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:59:02,046 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:59:02,046 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:59:02,046 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:59:02,047 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:59:02,047 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:59:02,047 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:59:02,047 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:59:02,048 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:59:02,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:59:02,049 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:59:02,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:59:02,049 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:59:02,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:59:02,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:59:02,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:59:02,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:59:02,050 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:59:02,050 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:59:02,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:59:02,051 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:59:02,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:59:02,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:59:02,051 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:59:02,051 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:59:02,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:59:02,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:59:02,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:59:02,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:59:02,053 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:59:02,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:59:02,053 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:59:02,053 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:59:02,053 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:59:02,053 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f64c2f4b711d318d41e4cf94931ea5c2c39d9f20 [2020-11-22 12:59:02,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:59:02,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:59:02,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:59:02,324 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:59:02,325 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:59:02,326 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c [2020-11-22 12:59:02,404 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/data/b634355a8/97b8631b3cb24ec084a4b4151728ef49/FLAG4e5c0e81a [2020-11-22 12:59:02,884 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:59:02,887 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c [2020-11-22 12:59:02,898 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/data/b634355a8/97b8631b3cb24ec084a4b4151728ef49/FLAG4e5c0e81a [2020-11-22 12:59:03,226 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/data/b634355a8/97b8631b3cb24ec084a4b4151728ef49 [2020-11-22 12:59:03,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:59:03,230 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:59:03,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:59:03,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:59:03,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:59:03,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:59:03" (1/1) ... [2020-11-22 12:59:03,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53dda574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:03, skipping insertion in model container [2020-11-22 12:59:03,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:59:03" (1/1) ... [2020-11-22 12:59:03,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:59:03,294 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:59:03,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:59:03,587 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-11-22 12:59:03,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5205bcea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:03, skipping insertion in model container [2020-11-22 12:59:03,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:59:03,589 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 12:59:03,591 INFO L168 Benchmark]: Toolchain (without parser) took 359.96 ms. Allocated memory is still 121.6 MB. Free memory was 94.0 MB in the beginning and 96.3 MB in the end (delta: -2.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:03,592 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 83.9 MB. Free memory is still 44.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:59:03,593 INFO L168 Benchmark]: CACSL2BoogieTranslator took 357.25 ms. Allocated memory is still 121.6 MB. Free memory was 94.0 MB in the beginning and 96.3 MB in the end (delta: -2.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:03,594 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 83.9 MB. Free memory is still 44.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 357.25 ms. Allocated memory is still 121.6 MB. Free memory was 94.0 MB in the beginning and 96.3 MB in the end (delta: -2.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 470]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:59:05,779 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:59:05,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:59:05,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:59:05,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:59:05,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:59:05,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:59:05,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:59:05,849 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:59:05,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:59:05,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:59:05,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:59:05,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:59:05,869 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:59:05,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:59:05,874 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:59:05,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:59:05,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:59:05,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:59:05,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:59:05,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:59:05,894 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:59:05,896 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:59:05,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:59:05,908 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:59:05,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:59:05,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:59:05,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:59:05,913 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:59:05,914 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:59:05,915 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:59:05,916 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:59:05,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:59:05,918 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:59:05,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:59:05,920 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:59:05,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:59:05,921 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:59:05,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:59:05,923 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:59:05,924 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:59:05,925 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 12:59:05,965 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:59:05,965 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:59:05,967 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:59:05,968 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:59:05,968 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:59:05,968 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:59:05,968 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:59:05,969 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:59:05,969 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:59:05,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:59:05,971 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:59:05,971 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:59:05,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:59:05,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:59:05,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:59:05,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:59:05,973 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:59:05,973 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 12:59:05,973 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 12:59:05,973 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:59:05,973 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:59:05,974 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:59:05,974 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:59:05,974 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:59:05,974 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 12:59:05,975 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:59:05,975 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:59:05,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:59:05,975 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:59:05,976 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:59:05,976 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:59:05,976 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 12:59:05,976 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 12:59:05,977 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:59:05,977 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:59:05,989 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:59:05,989 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f64c2f4b711d318d41e4cf94931ea5c2c39d9f20 [2020-11-22 12:59:06,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:59:06,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:59:06,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:59:06,419 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:59:06,421 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:59:06,422 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c [2020-11-22 12:59:06,489 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/data/8acfd3ede/f6dad1b672614aad8eda81c2811e316b/FLAG837227387 [2020-11-22 12:59:07,022 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:59:07,022 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c [2020-11-22 12:59:07,042 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/data/8acfd3ede/f6dad1b672614aad8eda81c2811e316b/FLAG837227387 [2020-11-22 12:59:07,315 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/data/8acfd3ede/f6dad1b672614aad8eda81c2811e316b [2020-11-22 12:59:07,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:59:07,320 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:59:07,321 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:59:07,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:59:07,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:59:07,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:59:07" (1/1) ... [2020-11-22 12:59:07,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@171b95e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:07, skipping insertion in model container [2020-11-22 12:59:07,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:59:07" (1/1) ... [2020-11-22 12:59:07,335 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:59:07,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:59:07,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:59:07,697 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 12:59:07,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:59:07,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:59:07,831 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:59:07,903 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:59:07,951 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:59:07,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:07 WrapperNode [2020-11-22 12:59:07,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:59:07,953 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:59:07,953 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:59:07,953 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:59:07,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:07" (1/1) ... [2020-11-22 12:59:07,997 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:07" (1/1) ... [2020-11-22 12:59:08,068 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:59:08,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:59:08,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:59:08,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:59:08,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:07" (1/1) ... [2020-11-22 12:59:08,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:07" (1/1) ... [2020-11-22 12:59:08,095 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:07" (1/1) ... [2020-11-22 12:59:08,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:07" (1/1) ... [2020-11-22 12:59:08,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:07" (1/1) ... [2020-11-22 12:59:08,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:07" (1/1) ... [2020-11-22 12:59:08,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:07" (1/1) ... [2020-11-22 12:59:08,161 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:59:08,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:59:08,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:59:08,163 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:59:08,163 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:59:08,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:59:08,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 12:59:08,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:59:08,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:59:10,873 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:59:10,875 INFO L298 CfgBuilder]: Removed 164 assume(true) statements. [2020-11-22 12:59:10,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:59:10 BoogieIcfgContainer [2020-11-22 12:59:10,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:59:10,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:59:10,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:59:10,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:59:10,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:59:07" (1/3) ... [2020-11-22 12:59:10,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@588781f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:59:10, skipping insertion in model container [2020-11-22 12:59:10,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:07" (2/3) ... [2020-11-22 12:59:10,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@588781f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:59:10, skipping insertion in model container [2020-11-22 12:59:10,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:59:10" (3/3) ... [2020-11-22 12:59:10,886 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product37.cil.c [2020-11-22 12:59:10,900 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:59:10,905 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 12:59:10,916 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 12:59:10,954 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:59:10,954 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:59:10,954 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:59:10,954 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:59:10,954 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:59:10,955 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:59:10,955 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:59:10,955 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:59:10,974 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states. [2020-11-22 12:59:10,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-22 12:59:10,981 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:10,982 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:59:10,983 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:10,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:10,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1217214268, now seen corresponding path program 1 times [2020-11-22 12:59:11,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:59:11,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1438423956] [2020-11-22 12:59:11,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-22 12:59:11,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:11,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 12:59:11,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:59:11,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:11,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:59:11,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:11,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1438423956] [2020-11-22 12:59:11,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:11,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 12:59:11,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321732657] [2020-11-22 12:59:11,347 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 12:59:11,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:59:11,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 12:59:11,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:59:11,361 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 2 states. [2020-11-22 12:59:11,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:11,390 INFO L93 Difference]: Finished difference Result 226 states and 345 transitions. [2020-11-22 12:59:11,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 12:59:11,392 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-22 12:59:11,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:11,402 INFO L225 Difference]: With dead ends: 226 [2020-11-22 12:59:11,402 INFO L226 Difference]: Without dead ends: 111 [2020-11-22 12:59:11,405 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:59:11,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-11-22 12:59:11,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2020-11-22 12:59:11,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-11-22 12:59:11,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 163 transitions. [2020-11-22 12:59:11,482 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 163 transitions. Word has length 18 [2020-11-22 12:59:11,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:11,483 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 163 transitions. [2020-11-22 12:59:11,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 12:59:11,483 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 163 transitions. [2020-11-22 12:59:11,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-22 12:59:11,486 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:11,487 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:59:11,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 12:59:11,711 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:11,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:11,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1436050237, now seen corresponding path program 1 times [2020-11-22 12:59:11,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:59:11,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1248094482] [2020-11-22 12:59:11,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-22 12:59:11,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:11,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:59:11,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:59:11,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:11,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:59:12,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:12,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1248094482] [2020-11-22 12:59:12,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:12,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 12:59:12,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093848011] [2020-11-22 12:59:12,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:59:12,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:59:12,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:59:12,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:59:12,004 INFO L87 Difference]: Start difference. First operand 111 states and 163 transitions. Second operand 4 states. [2020-11-22 12:59:12,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:12,035 INFO L93 Difference]: Finished difference Result 111 states and 163 transitions. [2020-11-22 12:59:12,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:59:12,037 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-11-22 12:59:12,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:12,038 INFO L225 Difference]: With dead ends: 111 [2020-11-22 12:59:12,038 INFO L226 Difference]: Without dead ends: 47 [2020-11-22 12:59:12,039 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:59:12,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-22 12:59:12,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-22 12:59:12,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-22 12:59:12,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2020-11-22 12:59:12,045 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 19 [2020-11-22 12:59:12,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:12,045 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2020-11-22 12:59:12,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:59:12,046 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2020-11-22 12:59:12,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-22 12:59:12,047 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:12,047 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:59:12,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 12:59:12,256 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:12,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:12,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1303013450, now seen corresponding path program 1 times [2020-11-22 12:59:12,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:59:12,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2024247342] [2020-11-22 12:59:12,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-22 12:59:12,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:12,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:59:12,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:59:12,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:12,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:59:12,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:12,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2024247342] [2020-11-22 12:59:12,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:12,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 12:59:12,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954918595] [2020-11-22 12:59:12,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:59:12,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:59:12,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:59:12,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:59:12,561 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand 4 states. [2020-11-22 12:59:12,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:12,576 INFO L93 Difference]: Finished difference Result 87 states and 129 transitions. [2020-11-22 12:59:12,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:59:12,577 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-22 12:59:12,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:12,578 INFO L225 Difference]: With dead ends: 87 [2020-11-22 12:59:12,578 INFO L226 Difference]: Without dead ends: 47 [2020-11-22 12:59:12,579 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:59:12,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-22 12:59:12,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-22 12:59:12,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-22 12:59:12,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2020-11-22 12:59:12,589 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 24 [2020-11-22 12:59:12,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:12,590 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2020-11-22 12:59:12,590 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:59:12,590 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2020-11-22 12:59:12,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-22 12:59:12,592 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:12,592 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:59:12,811 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 12:59:12,811 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:12,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:12,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1055953523, now seen corresponding path program 1 times [2020-11-22 12:59:12,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:59:12,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [468061101] [2020-11-22 12:59:12,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-22 12:59:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:13,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:59:13,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:59:13,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:13,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:59:13,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:13,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [468061101] [2020-11-22 12:59:13,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:13,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 12:59:13,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438050442] [2020-11-22 12:59:13,030 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 12:59:13,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:59:13,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 12:59:13,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:59:13,031 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 3 states. [2020-11-22 12:59:13,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:13,152 INFO L93 Difference]: Finished difference Result 109 states and 159 transitions. [2020-11-22 12:59:13,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:59:13,154 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-11-22 12:59:13,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:13,155 INFO L225 Difference]: With dead ends: 109 [2020-11-22 12:59:13,155 INFO L226 Difference]: Without dead ends: 69 [2020-11-22 12:59:13,156 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:59:13,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-11-22 12:59:13,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2020-11-22 12:59:13,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-11-22 12:59:13,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 95 transitions. [2020-11-22 12:59:13,164 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 95 transitions. Word has length 26 [2020-11-22 12:59:13,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:13,165 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 95 transitions. [2020-11-22 12:59:13,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 12:59:13,165 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 95 transitions. [2020-11-22 12:59:13,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-22 12:59:13,166 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:13,166 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:59:13,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 12:59:13,393 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:13,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:13,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1518849596, now seen corresponding path program 1 times [2020-11-22 12:59:13,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:59:13,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2065316009] [2020-11-22 12:59:13,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-22 12:59:13,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:13,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:59:13,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:59:13,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:13,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:59:13,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:13,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2065316009] [2020-11-22 12:59:13,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:13,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 12:59:13,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449433064] [2020-11-22 12:59:13,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:59:13,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:59:13,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:59:13,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:59:13,653 INFO L87 Difference]: Start difference. First operand 67 states and 95 transitions. Second operand 5 states. [2020-11-22 12:59:13,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:13,755 INFO L93 Difference]: Finished difference Result 178 states and 252 transitions. [2020-11-22 12:59:13,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 12:59:13,756 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-11-22 12:59:13,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:13,757 INFO L225 Difference]: With dead ends: 178 [2020-11-22 12:59:13,757 INFO L226 Difference]: Without dead ends: 118 [2020-11-22 12:59:13,758 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 12:59:13,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-11-22 12:59:13,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 73. [2020-11-22 12:59:13,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-11-22 12:59:13,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 101 transitions. [2020-11-22 12:59:13,769 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 101 transitions. Word has length 32 [2020-11-22 12:59:13,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:13,769 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 101 transitions. [2020-11-22 12:59:13,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:59:13,770 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 101 transitions. [2020-11-22 12:59:13,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-22 12:59:13,771 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:13,771 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:59:13,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 12:59:13,991 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:13,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:13,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1842653991, now seen corresponding path program 1 times [2020-11-22 12:59:13,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:59:13,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [285386098] [2020-11-22 12:59:13,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-11-22 12:59:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:14,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:59:14,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:59:14,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:14,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:59:14,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:14,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [285386098] [2020-11-22 12:59:14,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:14,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-22 12:59:14,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574640823] [2020-11-22 12:59:14,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:59:14,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:59:14,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:59:14,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:59:14,236 INFO L87 Difference]: Start difference. First operand 73 states and 101 transitions. Second operand 5 states. [2020-11-22 12:59:14,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:14,397 INFO L93 Difference]: Finished difference Result 349 states and 492 transitions. [2020-11-22 12:59:14,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-22 12:59:14,399 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-11-22 12:59:14,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:14,402 INFO L225 Difference]: With dead ends: 349 [2020-11-22 12:59:14,402 INFO L226 Difference]: Without dead ends: 283 [2020-11-22 12:59:14,403 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 12:59:14,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2020-11-22 12:59:14,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 131. [2020-11-22 12:59:14,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-11-22 12:59:14,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 180 transitions. [2020-11-22 12:59:14,441 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 180 transitions. Word has length 32 [2020-11-22 12:59:14,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:14,443 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 180 transitions. [2020-11-22 12:59:14,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:59:14,443 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 180 transitions. [2020-11-22 12:59:14,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-22 12:59:14,447 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:14,447 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:59:14,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-22 12:59:14,666 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:14,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:14,667 INFO L82 PathProgramCache]: Analyzing trace with hash -1842810527, now seen corresponding path program 1 times [2020-11-22 12:59:14,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:59:14,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [253967972] [2020-11-22 12:59:14,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-11-22 12:59:14,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:14,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:59:14,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:59:14,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:14,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:59:14,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:14,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [253967972] [2020-11-22 12:59:14,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:14,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 12:59:14,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725078767] [2020-11-22 12:59:14,903 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:59:14,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:59:14,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:59:14,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:59:14,904 INFO L87 Difference]: Start difference. First operand 131 states and 180 transitions. Second operand 5 states. [2020-11-22 12:59:15,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:15,115 INFO L93 Difference]: Finished difference Result 490 states and 677 transitions. [2020-11-22 12:59:15,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-22 12:59:15,116 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-11-22 12:59:15,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:15,119 INFO L225 Difference]: With dead ends: 490 [2020-11-22 12:59:15,119 INFO L226 Difference]: Without dead ends: 366 [2020-11-22 12:59:15,122 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 12:59:15,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2020-11-22 12:59:15,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 130. [2020-11-22 12:59:15,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-11-22 12:59:15,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 177 transitions. [2020-11-22 12:59:15,146 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 177 transitions. Word has length 33 [2020-11-22 12:59:15,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:15,148 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 177 transitions. [2020-11-22 12:59:15,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:59:15,148 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 177 transitions. [2020-11-22 12:59:15,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-22 12:59:15,153 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:15,153 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:59:15,376 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-22 12:59:15,376 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:15,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:15,377 INFO L82 PathProgramCache]: Analyzing trace with hash -2075209658, now seen corresponding path program 1 times [2020-11-22 12:59:15,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:59:15,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1943154947] [2020-11-22 12:59:15,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-11-22 12:59:15,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:15,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-22 12:59:15,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:59:15,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:15,616 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:59:15,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:15,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1943154947] [2020-11-22 12:59:15,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:15,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-22 12:59:15,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907309012] [2020-11-22 12:59:15,642 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 12:59:15,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:59:15,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 12:59:15,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 12:59:15,643 INFO L87 Difference]: Start difference. First operand 130 states and 177 transitions. Second operand 6 states. [2020-11-22 12:59:15,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:15,735 INFO L93 Difference]: Finished difference Result 349 states and 471 transitions. [2020-11-22 12:59:15,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 12:59:15,736 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-11-22 12:59:15,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:15,738 INFO L225 Difference]: With dead ends: 349 [2020-11-22 12:59:15,738 INFO L226 Difference]: Without dead ends: 226 [2020-11-22 12:59:15,740 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 12:59:15,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-11-22 12:59:15,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 138. [2020-11-22 12:59:15,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-11-22 12:59:15,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 185 transitions. [2020-11-22 12:59:15,763 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 185 transitions. Word has length 33 [2020-11-22 12:59:15,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:15,763 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 185 transitions. [2020-11-22 12:59:15,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 12:59:15,764 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 185 transitions. [2020-11-22 12:59:15,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-22 12:59:15,767 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:15,767 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:59:15,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-22 12:59:15,983 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:15,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:15,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1632951624, now seen corresponding path program 1 times [2020-11-22 12:59:15,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:59:15,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [815207934] [2020-11-22 12:59:15,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-11-22 12:59:16,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:16,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:59:16,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:59:16,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:16,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:59:16,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:16,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [815207934] [2020-11-22 12:59:16,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:16,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 12:59:16,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816911886] [2020-11-22 12:59:16,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:59:16,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:59:16,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:59:16,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:59:16,212 INFO L87 Difference]: Start difference. First operand 138 states and 185 transitions. Second operand 4 states. [2020-11-22 12:59:16,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:16,298 INFO L93 Difference]: Finished difference Result 422 states and 569 transitions. [2020-11-22 12:59:16,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 12:59:16,300 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-11-22 12:59:16,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:16,302 INFO L225 Difference]: With dead ends: 422 [2020-11-22 12:59:16,302 INFO L226 Difference]: Without dead ends: 291 [2020-11-22 12:59:16,303 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:59:16,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-11-22 12:59:16,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 239. [2020-11-22 12:59:16,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-11-22 12:59:16,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 318 transitions. [2020-11-22 12:59:16,334 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 318 transitions. Word has length 33 [2020-11-22 12:59:16,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:16,334 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 318 transitions. [2020-11-22 12:59:16,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:59:16,335 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 318 transitions. [2020-11-22 12:59:16,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-22 12:59:16,335 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:16,336 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:59:16,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-11-22 12:59:16,552 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:16,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:16,552 INFO L82 PathProgramCache]: Analyzing trace with hash -767383544, now seen corresponding path program 1 times [2020-11-22 12:59:16,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:59:16,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [978521331] [2020-11-22 12:59:16,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-11-22 12:59:16,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:16,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:59:16,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:59:16,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:16,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:59:16,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:16,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [978521331] [2020-11-22 12:59:16,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:16,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 12:59:16,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278407878] [2020-11-22 12:59:16,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 12:59:16,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:59:16,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 12:59:16,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:59:16,775 INFO L87 Difference]: Start difference. First operand 239 states and 318 transitions. Second operand 3 states. [2020-11-22 12:59:16,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:16,854 INFO L93 Difference]: Finished difference Result 407 states and 540 transitions. [2020-11-22 12:59:16,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:59:16,855 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2020-11-22 12:59:16,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:16,857 INFO L225 Difference]: With dead ends: 407 [2020-11-22 12:59:16,858 INFO L226 Difference]: Without dead ends: 405 [2020-11-22 12:59:16,858 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:59:16,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2020-11-22 12:59:16,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 304. [2020-11-22 12:59:16,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-11-22 12:59:16,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 414 transitions. [2020-11-22 12:59:16,901 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 414 transitions. Word has length 34 [2020-11-22 12:59:16,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:16,901 INFO L481 AbstractCegarLoop]: Abstraction has 304 states and 414 transitions. [2020-11-22 12:59:16,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 12:59:16,902 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 414 transitions. [2020-11-22 12:59:16,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-11-22 12:59:16,903 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:16,903 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:59:17,117 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-11-22 12:59:17,117 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:17,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:17,118 INFO L82 PathProgramCache]: Analyzing trace with hash -121383339, now seen corresponding path program 1 times [2020-11-22 12:59:17,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:59:17,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2073740997] [2020-11-22 12:59:17,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-11-22 12:59:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:17,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 12:59:17,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:59:17,366 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-22 12:59:17,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:59:17,442 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-22 12:59:17,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2073740997] [2020-11-22 12:59:17,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:17,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-22 12:59:17,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150324233] [2020-11-22 12:59:17,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-22 12:59:17,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:59:17,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-22 12:59:17,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-22 12:59:17,453 INFO L87 Difference]: Start difference. First operand 304 states and 414 transitions. Second operand 10 states. [2020-11-22 12:59:20,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:20,156 INFO L93 Difference]: Finished difference Result 978 states and 1319 transitions. [2020-11-22 12:59:20,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-22 12:59:20,157 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 56 [2020-11-22 12:59:20,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:20,167 INFO L225 Difference]: With dead ends: 978 [2020-11-22 12:59:20,168 INFO L226 Difference]: Without dead ends: 681 [2020-11-22 12:59:20,170 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2020-11-22 12:59:20,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2020-11-22 12:59:20,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 237. [2020-11-22 12:59:20,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-11-22 12:59:20,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 313 transitions. [2020-11-22 12:59:20,207 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 313 transitions. Word has length 56 [2020-11-22 12:59:20,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:20,208 INFO L481 AbstractCegarLoop]: Abstraction has 237 states and 313 transitions. [2020-11-22 12:59:20,208 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-22 12:59:20,208 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 313 transitions. [2020-11-22 12:59:20,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-11-22 12:59:20,209 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:20,210 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:59:20,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-11-22 12:59:20,426 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:20,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:20,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1662330220, now seen corresponding path program 1 times [2020-11-22 12:59:20,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:59:20,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1048836596] [2020-11-22 12:59:20,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2020-11-22 12:59:20,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:20,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:59:20,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:59:20,642 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:20,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:59:20,660 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:59:20,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1048836596] [2020-11-22 12:59:20,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:20,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 12:59:20,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609820339] [2020-11-22 12:59:20,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:59:20,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:59:20,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:59:20,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:59:20,662 INFO L87 Difference]: Start difference. First operand 237 states and 313 transitions. Second operand 4 states. [2020-11-22 12:59:23,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:23,652 INFO L93 Difference]: Finished difference Result 435 states and 579 transitions. [2020-11-22 12:59:23,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:59:23,652 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-11-22 12:59:23,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:23,653 INFO L225 Difference]: With dead ends: 435 [2020-11-22 12:59:23,653 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 12:59:23,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:59:23,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 12:59:23,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 12:59:23,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 12:59:23,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 12:59:23,654 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2020-11-22 12:59:23,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:23,655 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 12:59:23,655 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:59:23,655 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 12:59:23,655 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 12:59:23,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-11-22 12:59:23,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-22 12:59:24,234 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 94 [2020-11-22 12:59:24,404 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2020-11-22 12:59:24,747 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 108 [2020-11-22 12:59:25,136 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 110 [2020-11-22 12:59:25,808 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 29 [2020-11-22 12:59:26,197 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 27 [2020-11-22 12:59:26,711 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 28 [2020-11-22 12:59:26,968 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 30 [2020-11-22 12:59:27,685 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 33 [2020-11-22 12:59:27,982 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 30 [2020-11-22 12:59:28,158 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 25 [2020-11-22 12:59:28,623 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 28 [2020-11-22 12:59:29,120 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 26 [2020-11-22 12:59:29,125 INFO L274 CegarLoopResult]: For program point L894(lines 894 901) no Hoare annotation was computed. [2020-11-22 12:59:29,126 INFO L277 CegarLoopResult]: At program point L894-1(lines 894 901) the Hoare annotation is: true [2020-11-22 12:59:29,126 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-22 12:59:29,126 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-22 12:59:29,126 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-22 12:59:29,126 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-11-22 12:59:29,126 INFO L270 CegarLoopResult]: At program point L170(lines 165 173) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (= (_ bv0 32) (bvadd |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv4294967295 32))))) (or (and .cse0 .cse1 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|) (= (_ bv0 32) ~pumpRunning~0) .cse2 .cse3) (and .cse0 .cse1 (= (_ bv1 32) ~pumpRunning~0) (= ~methAndRunningLastTime~0 (_ bv0 32)) .cse2 .cse3))) [2020-11-22 12:59:29,126 INFO L270 CegarLoopResult]: At program point L170-1(lines 165 173) the Hoare annotation is: false [2020-11-22 12:59:29,126 INFO L270 CegarLoopResult]: At program point L170-2(lines 165 173) the Hoare annotation is: false [2020-11-22 12:59:29,127 INFO L270 CegarLoopResult]: At program point L930(lines 1 941) the Hoare annotation is: (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~methAndRunningLastTime~0 (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) [2020-11-22 12:59:29,127 INFO L274 CegarLoopResult]: For program point L369(lines 369 373) no Hoare annotation was computed. [2020-11-22 12:59:29,127 INFO L274 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-11-22 12:59:29,127 INFO L274 CegarLoopResult]: For program point L437-1(line 437) no Hoare annotation was computed. [2020-11-22 12:59:29,127 INFO L274 CegarLoopResult]: For program point L437-2(line 437) no Hoare annotation was computed. [2020-11-22 12:59:29,127 INFO L270 CegarLoopResult]: At program point L305(lines 300 307) the Hoare annotation is: (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~methAndRunningLastTime~0 (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) [2020-11-22 12:59:29,127 INFO L270 CegarLoopResult]: At program point L867(lines 863 869) the Hoare annotation is: (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~methAndRunningLastTime~0 (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) [2020-11-22 12:59:29,127 INFO L274 CegarLoopResult]: For program point L273(lines 273 284) no Hoare annotation was computed. [2020-11-22 12:59:29,127 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-22 12:59:29,128 INFO L277 CegarLoopResult]: At program point L903(lines 884 906) the Hoare annotation is: true [2020-11-22 12:59:29,128 INFO L274 CegarLoopResult]: For program point L244(lines 243 288) no Hoare annotation was computed. [2020-11-22 12:59:29,128 INFO L270 CegarLoopResult]: At program point L938(lines 933 941) the Hoare annotation is: (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~methAndRunningLastTime~0 (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) [2020-11-22 12:59:29,128 INFO L274 CegarLoopResult]: For program point L245(lines 245 249) no Hoare annotation was computed. [2020-11-22 12:59:29,128 INFO L274 CegarLoopResult]: For program point L345(lines 345 349) no Hoare annotation was computed. [2020-11-22 12:59:29,129 INFO L274 CegarLoopResult]: For program point L279(lines 279 283) no Hoare annotation was computed. [2020-11-22 12:59:29,129 INFO L274 CegarLoopResult]: For program point L345-3(lines 345 349) no Hoare annotation was computed. [2020-11-22 12:59:29,129 INFO L274 CegarLoopResult]: For program point L279-2(lines 59 65) no Hoare annotation was computed. [2020-11-22 12:59:29,129 INFO L274 CegarLoopResult]: For program point L345-6(lines 345 349) no Hoare annotation was computed. [2020-11-22 12:59:29,129 INFO L274 CegarLoopResult]: For program point L117(lines 117 134) no Hoare annotation was computed. [2020-11-22 12:59:29,129 INFO L274 CegarLoopResult]: For program point L117-1(lines 117 134) no Hoare annotation was computed. [2020-11-22 12:59:29,129 INFO L274 CegarLoopResult]: For program point L117-2(lines 117 134) no Hoare annotation was computed. [2020-11-22 12:59:29,130 INFO L270 CegarLoopResult]: At program point L382(lines 377 385) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= (_ bv1 32) ~pumpRunning~0)) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse2) (and (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) .cse0 .cse1 .cse2 (= (_ bv0 32) (bvadd |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv4294967295 32)))))) [2020-11-22 12:59:29,130 INFO L270 CegarLoopResult]: At program point L382-1(lines 377 385) the Hoare annotation is: (let ((.cse1 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32))) (.cse6 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse5 (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse4 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse7 (= (_ bv0 32) (bvadd |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv4294967295 32))))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse6 .cse4 .cse7) (and .cse0 .cse1 .cse6 .cse3 .cse4) (and .cse5 .cse0 .cse2 (= ~methAndRunningLastTime~0 (_ bv0 32)) .cse4 .cse7))) [2020-11-22 12:59:29,130 INFO L274 CegarLoopResult]: For program point L316(lines 316 333) no Hoare annotation was computed. [2020-11-22 12:59:29,130 INFO L270 CegarLoopResult]: At program point L382-2(lines 377 385) the Hoare annotation is: false [2020-11-22 12:59:29,130 INFO L270 CegarLoopResult]: At program point L316-1(lines 1 941) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)))) (.cse4 (= (_ bv0 32) (bvadd |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv4294967295 32)))) (.cse5 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse7 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse6 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse3 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse5 .cse6 .cse3 .cse4) (and .cse1 .cse5 .cse7 .cse6 .cse3) (and .cse1 (= (_ bv0 32) ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp~4) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse2 .cse7 .cse6 .cse3))) [2020-11-22 12:59:29,131 INFO L270 CegarLoopResult]: At program point L382-3(lines 377 385) the Hoare annotation is: false [2020-11-22 12:59:29,131 INFO L274 CegarLoopResult]: For program point L316-2(lines 316 333) no Hoare annotation was computed. [2020-11-22 12:59:29,131 INFO L270 CegarLoopResult]: At program point L382-4(lines 377 385) the Hoare annotation is: false [2020-11-22 12:59:29,131 INFO L270 CegarLoopResult]: At program point L316-3(lines 1 941) the Hoare annotation is: false [2020-11-22 12:59:29,131 INFO L270 CegarLoopResult]: At program point L382-5(lines 377 385) the Hoare annotation is: false [2020-11-22 12:59:29,131 INFO L274 CegarLoopResult]: For program point L316-4(lines 316 333) no Hoare annotation was computed. [2020-11-22 12:59:29,131 INFO L270 CegarLoopResult]: At program point L316-5(lines 1 941) the Hoare annotation is: false [2020-11-22 12:59:29,132 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-22 12:59:29,132 INFO L274 CegarLoopResult]: For program point L219(lines 219 223) no Hoare annotation was computed. [2020-11-22 12:59:29,132 INFO L274 CegarLoopResult]: For program point L219-2(lines 219 223) no Hoare annotation was computed. [2020-11-22 12:59:29,132 INFO L274 CegarLoopResult]: For program point L219-3(lines 219 223) no Hoare annotation was computed. [2020-11-22 12:59:29,132 INFO L274 CegarLoopResult]: For program point L219-5(lines 219 223) no Hoare annotation was computed. [2020-11-22 12:59:29,132 INFO L274 CegarLoopResult]: For program point L219-6(lines 219 223) no Hoare annotation was computed. [2020-11-22 12:59:29,132 INFO L274 CegarLoopResult]: For program point L219-8(lines 219 223) no Hoare annotation was computed. [2020-11-22 12:59:29,133 INFO L274 CegarLoopResult]: For program point L219-9(lines 219 223) no Hoare annotation was computed. [2020-11-22 12:59:29,133 INFO L274 CegarLoopResult]: For program point L219-11(lines 219 223) no Hoare annotation was computed. [2020-11-22 12:59:29,133 INFO L274 CegarLoopResult]: For program point L219-12(lines 219 223) no Hoare annotation was computed. [2020-11-22 12:59:29,133 INFO L274 CegarLoopResult]: For program point L219-14(lines 219 223) no Hoare annotation was computed. [2020-11-22 12:59:29,133 INFO L274 CegarLoopResult]: For program point L219-15(lines 219 223) no Hoare annotation was computed. [2020-11-22 12:59:29,133 INFO L274 CegarLoopResult]: For program point L219-17(lines 219 223) no Hoare annotation was computed. [2020-11-22 12:59:29,133 INFO L274 CegarLoopResult]: For program point L253(lines 253 259) no Hoare annotation was computed. [2020-11-22 12:59:29,134 INFO L270 CegarLoopResult]: At program point L253-1(lines 253 259) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)))) (.cse4 (= (_ bv0 32) (bvadd |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv4294967295 32)))) (.cse5 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse7 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse6 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse3 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse5 .cse6 .cse3 .cse4) (and .cse1 .cse5 .cse7 .cse6 .cse3) (and .cse1 (= (_ bv0 32) ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp~4) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse2 .cse7 .cse6 .cse3))) [2020-11-22 12:59:29,134 INFO L274 CegarLoopResult]: For program point L121(lines 121 129) no Hoare annotation was computed. [2020-11-22 12:59:29,134 INFO L274 CegarLoopResult]: For program point L121-1(lines 121 129) no Hoare annotation was computed. [2020-11-22 12:59:29,134 INFO L274 CegarLoopResult]: For program point L121-2(lines 121 129) no Hoare annotation was computed. [2020-11-22 12:59:29,134 INFO L274 CegarLoopResult]: For program point L320(lines 320 330) no Hoare annotation was computed. [2020-11-22 12:59:29,134 INFO L274 CegarLoopResult]: For program point L320-2(lines 320 330) no Hoare annotation was computed. [2020-11-22 12:59:29,135 INFO L274 CegarLoopResult]: For program point L320-4(lines 320 330) no Hoare annotation was computed. [2020-11-22 12:59:29,135 INFO L274 CegarLoopResult]: For program point L321(lines 321 327) no Hoare annotation was computed. [2020-11-22 12:59:29,135 INFO L274 CegarLoopResult]: For program point L321-2(lines 321 327) no Hoare annotation was computed. [2020-11-22 12:59:29,135 INFO L274 CegarLoopResult]: For program point L321-4(lines 321 327) no Hoare annotation was computed. [2020-11-22 12:59:29,135 INFO L270 CegarLoopResult]: At program point L289(lines 242 290) the Hoare annotation is: false [2020-11-22 12:59:29,135 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-22 12:59:29,135 INFO L274 CegarLoopResult]: For program point L91(lines 91 108) no Hoare annotation was computed. [2020-11-22 12:59:29,136 INFO L274 CegarLoopResult]: For program point L91-1(lines 91 108) no Hoare annotation was computed. [2020-11-22 12:59:29,136 INFO L274 CegarLoopResult]: For program point L91-2(lines 91 108) no Hoare annotation was computed. [2020-11-22 12:59:29,136 INFO L274 CegarLoopResult]: For program point L91-3(lines 91 108) no Hoare annotation was computed. [2020-11-22 12:59:29,136 INFO L274 CegarLoopResult]: For program point L91-4(lines 91 108) no Hoare annotation was computed. [2020-11-22 12:59:29,136 INFO L274 CegarLoopResult]: For program point L91-5(lines 91 108) no Hoare annotation was computed. [2020-11-22 12:59:29,136 INFO L274 CegarLoopResult]: For program point L422(lines 422 428) no Hoare annotation was computed. [2020-11-22 12:59:29,136 INFO L274 CegarLoopResult]: For program point L422-1(lines 422 428) no Hoare annotation was computed. [2020-11-22 12:59:29,137 INFO L274 CegarLoopResult]: For program point L422-2(lines 422 428) no Hoare annotation was computed. [2020-11-22 12:59:29,137 INFO L274 CegarLoopResult]: For program point L422-3(lines 422 428) no Hoare annotation was computed. [2020-11-22 12:59:29,137 INFO L274 CegarLoopResult]: For program point L422-4(lines 422 428) no Hoare annotation was computed. [2020-11-22 12:59:29,137 INFO L274 CegarLoopResult]: For program point L422-5(lines 422 428) no Hoare annotation was computed. [2020-11-22 12:59:29,137 INFO L270 CegarLoopResult]: At program point L59(lines 58 77) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)))) (.cse3 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse5 (= (_ bv0 32) ~pumpRunning~0)) (.cse6 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse4 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse4 (= (_ bv0 32) (bvadd |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv4294967295 32)))) (and .cse0 .cse1 .cse5 .cse4 (bvslt ~waterLevel~0 (_ bv2 32))) (and .cse0 .cse1 .cse5 .cse3 .cse4) (and .cse1 .cse2 .cse6 .cse4) (and .cse1 .cse5 .cse6 .cse4))) [2020-11-22 12:59:29,137 INFO L274 CegarLoopResult]: For program point L59-1(lines 59 65) no Hoare annotation was computed. [2020-11-22 12:59:29,138 INFO L270 CegarLoopResult]: At program point L59-2(lines 58 77) the Hoare annotation is: false [2020-11-22 12:59:29,138 INFO L270 CegarLoopResult]: At program point L59-3(lines 58 77) the Hoare annotation is: false [2020-11-22 12:59:29,138 INFO L270 CegarLoopResult]: At program point L819-2(lines 819 833) the Hoare annotation is: false [2020-11-22 12:59:29,138 INFO L274 CegarLoopResult]: For program point L357(lines 357 361) no Hoare annotation was computed. [2020-11-22 12:59:29,138 INFO L270 CegarLoopResult]: At program point L225(lines 210 228) the Hoare annotation is: false [2020-11-22 12:59:29,138 INFO L270 CegarLoopResult]: At program point L225-1(lines 210 228) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 (= ~methAndRunningLastTime~0 (_ bv0 32)) .cse3) (and .cse0 .cse1 (not (= ULTIMATE.start_isHighWaterLevel_~tmp~2 (_ bv0 32))) .cse2 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32)) .cse3 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv0 32))) (and .cse1 .cse2 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse3))) [2020-11-22 12:59:29,139 INFO L270 CegarLoopResult]: At program point L225-2(lines 210 228) the Hoare annotation is: false [2020-11-22 12:59:29,139 INFO L270 CegarLoopResult]: At program point L225-3(lines 210 228) the Hoare annotation is: false [2020-11-22 12:59:29,139 INFO L270 CegarLoopResult]: At program point L225-4(lines 210 228) the Hoare annotation is: false [2020-11-22 12:59:29,139 INFO L270 CegarLoopResult]: At program point L225-5(lines 210 228) the Hoare annotation is: false [2020-11-22 12:59:29,139 INFO L274 CegarLoopResult]: For program point L820(line 820) no Hoare annotation was computed. [2020-11-22 12:59:29,139 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-22 12:59:29,140 INFO L270 CegarLoopResult]: At program point L161(lines 154 164) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= (_ bv1 32) ~pumpRunning~0)) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse2) (and (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) .cse0 (= |ULTIMATE.start_isMethaneAlarm_#res| (_ bv1 32)) .cse1 .cse2 (= (_ bv0 32) (bvadd |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv4294967295 32)))))) [2020-11-22 12:59:29,140 INFO L270 CegarLoopResult]: At program point L161-1(lines 154 164) the Hoare annotation is: false [2020-11-22 12:59:29,140 INFO L274 CegarLoopResult]: For program point L95(lines 95 103) no Hoare annotation was computed. [2020-11-22 12:59:29,140 INFO L270 CegarLoopResult]: At program point L161-2(lines 154 164) the Hoare annotation is: false [2020-11-22 12:59:29,140 INFO L274 CegarLoopResult]: For program point L95-1(lines 95 103) no Hoare annotation was computed. [2020-11-22 12:59:29,140 INFO L274 CegarLoopResult]: For program point L95-2(lines 95 103) no Hoare annotation was computed. [2020-11-22 12:59:29,140 INFO L274 CegarLoopResult]: For program point L95-3(lines 95 103) no Hoare annotation was computed. [2020-11-22 12:59:29,141 INFO L274 CegarLoopResult]: For program point L95-4(lines 95 103) no Hoare annotation was computed. [2020-11-22 12:59:29,141 INFO L274 CegarLoopResult]: For program point L95-5(lines 95 103) no Hoare annotation was computed. [2020-11-22 12:59:29,141 INFO L274 CegarLoopResult]: For program point L823(lines 823 827) no Hoare annotation was computed. [2020-11-22 12:59:29,141 INFO L274 CegarLoopResult]: For program point L823-1(lines 59 65) no Hoare annotation was computed. [2020-11-22 12:59:29,141 INFO L270 CegarLoopResult]: At program point L427(lines 418 431) the Hoare annotation is: false [2020-11-22 12:59:29,141 INFO L270 CegarLoopResult]: At program point L427-1(lines 418 431) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 (= ~methAndRunningLastTime~0 (_ bv0 32)) .cse3) (and .cse0 .cse1 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) .cse2 .cse3 (bvslt ~waterLevel~0 (_ bv2 32))) (and .cse1 .cse2 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse3))) [2020-11-22 12:59:29,142 INFO L270 CegarLoopResult]: At program point L427-2(lines 418 431) the Hoare annotation is: false [2020-11-22 12:59:29,142 INFO L270 CegarLoopResult]: At program point L427-3(lines 418 431) the Hoare annotation is: false [2020-11-22 12:59:29,142 INFO L270 CegarLoopResult]: At program point L427-4(lines 418 431) the Hoare annotation is: false [2020-11-22 12:59:29,142 INFO L270 CegarLoopResult]: At program point L427-5(lines 418 431) the Hoare annotation is: false [2020-11-22 12:59:29,142 INFO L274 CegarLoopResult]: For program point L263(lines 263 269) no Hoare annotation was computed. [2020-11-22 12:59:29,142 INFO L270 CegarLoopResult]: At program point L263-1(lines 263 269) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse5 (= (_ bv0 32) ~pumpRunning~0)) (.cse6 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse3 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse4 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse4 (= (_ bv0 32) (bvadd |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv4294967295 32)))) (and .cse0 .cse1 .cse5 .cse3 .cse4) (and .cse1 .cse2 .cse6 .cse4) (and .cse1 .cse5 .cse6 .cse3 .cse4))) [2020-11-22 12:59:29,143 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-22 12:59:29,143 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-22 12:59:29,143 INFO L270 CegarLoopResult]: At program point L66(lines 66 72) the Hoare annotation is: (let ((.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse4 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse0 (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse5 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 (= ~methAndRunningLastTime~0 (_ bv0 32)) .cse3) (and .cse1 .cse2 .cse4 .cse3) (and .cse1 .cse5 .cse4 .cse3) (and .cse0 .cse1 .cse5 .cse3))) [2020-11-22 12:59:29,143 INFO L270 CegarLoopResult]: At program point L66-1(lines 66 72) the Hoare annotation is: false [2020-11-22 12:59:29,143 INFO L270 CegarLoopResult]: At program point L66-2(lines 66 72) the Hoare annotation is: false [2020-11-22 12:59:29,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:59:29 BoogieIcfgContainer [2020-11-22 12:59:29,176 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:59:29,177 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:59:29,177 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:59:29,177 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:59:29,177 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:59:10" (3/4) ... [2020-11-22 12:59:29,180 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 12:59:29,200 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-11-22 12:59:29,201 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-11-22 12:59:29,202 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-22 12:59:29,204 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-22 12:59:29,205 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-22 12:59:29,206 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 12:59:29,207 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 12:59:29,232 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) || (((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32))) || ((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || ((((((splverifierCounter == 0bv32 && 0bv32 == tmp) && \result == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) [2020-11-22 12:59:29,232 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) || (((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32))) || ((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || ((((((splverifierCounter == 0bv32 && 0bv32 == tmp) && \result == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) [2020-11-22 12:59:29,233 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || ((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32))) || ((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || ((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) [2020-11-22 12:59:29,233 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || ((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32))) || ((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvslt32(waterLevel, 2bv32))) || ((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || (((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) [2020-11-22 12:59:29,234 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0bv32 && \result == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || ((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32))) || ((((splverifierCounter == 0bv32 && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || (((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) [2020-11-22 12:59:29,235 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0bv32 && \result == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || ((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) [2020-11-22 12:59:29,236 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0bv32 && \result == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || (((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && \result == 1bv32) && 1bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) [2020-11-22 12:59:29,237 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || (((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 1bv32 == \result) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvslt32(waterLevel, 2bv32))) || (((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) [2020-11-22 12:59:29,237 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == \result) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) || (((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) [2020-11-22 12:59:29,238 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || ((((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && !(tmp == 0bv32)) && 0bv32 == pumpRunning) && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp___0 == 0bv32)) || (((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) [2020-11-22 12:59:29,294 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_75b6f61c-6bf7-4ea0-9333-d632089b45c5/bin/utaipan/witness.graphml [2020-11-22 12:59:29,294 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:59:29,296 INFO L168 Benchmark]: Toolchain (without parser) took 21975.55 ms. Allocated memory was 69.2 MB in the beginning and 104.9 MB in the end (delta: 35.7 MB). Free memory was 51.3 MB in the beginning and 29.6 MB in the end (delta: 21.8 MB). Peak memory consumption was 57.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:29,296 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 69.2 MB. Free memory is still 52.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:59:29,296 INFO L168 Benchmark]: CACSL2BoogieTranslator took 630.74 ms. Allocated memory is still 69.2 MB. Free memory was 51.2 MB in the beginning and 41.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:29,297 INFO L168 Benchmark]: Boogie Procedure Inliner took 116.63 ms. Allocated memory is still 69.2 MB. Free memory was 41.1 MB in the beginning and 37.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:29,297 INFO L168 Benchmark]: Boogie Preprocessor took 90.51 ms. Allocated memory is still 69.2 MB. Free memory was 37.6 MB in the beginning and 34.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:29,298 INFO L168 Benchmark]: RCFGBuilder took 2715.79 ms. Allocated memory was 69.2 MB in the beginning and 86.0 MB in the end (delta: 16.8 MB). Free memory was 34.9 MB in the beginning and 64.0 MB in the end (delta: -29.1 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:29,298 INFO L168 Benchmark]: TraceAbstraction took 18296.56 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 64.0 MB in the beginning and 40.1 MB in the end (delta: 24.0 MB). Peak memory consumption was 63.0 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:29,298 INFO L168 Benchmark]: Witness Printer took 118.06 ms. Allocated memory is still 104.9 MB. Free memory was 40.1 MB in the beginning and 29.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:29,300 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 69.2 MB. Free memory is still 52.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 630.74 ms. Allocated memory is still 69.2 MB. Free memory was 51.2 MB in the beginning and 41.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 116.63 ms. Allocated memory is still 69.2 MB. Free memory was 41.1 MB in the beginning and 37.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 90.51 ms. Allocated memory is still 69.2 MB. Free memory was 37.6 MB in the beginning and 34.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2715.79 ms. Allocated memory was 69.2 MB in the beginning and 86.0 MB in the end (delta: 16.8 MB). Free memory was 34.9 MB in the beginning and 64.0 MB in the end (delta: -29.1 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 18296.56 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 64.0 MB in the beginning and 40.1 MB in the end (delta: 24.0 MB). Peak memory consumption was 63.0 MB. Max. memory is 16.1 GB. * Witness Printer took 118.06 ms. Allocated memory is still 104.9 MB. Free memory was 40.1 MB in the beginning and 29.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 377]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 263]: Loop Invariant Derived loop invariant: (((((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || ((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32))) || ((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || ((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 210]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 210]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 210]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: (((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || (((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 1bv32 == \result) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvslt32(waterLevel, 2bv32))) || (((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) - InvariantResult [Line: 377]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && \result == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || ((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) - InvariantResult [Line: 894]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 377]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && \result == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || ((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32))) || ((((splverifierCounter == 0bv32 && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || (((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 377]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 300]: Loop Invariant Derived loop invariant: (((~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32 - InvariantResult [Line: 819]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 377]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) || (((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32))) || ((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || ((((((splverifierCounter == 0bv32 && 0bv32 == tmp) && \result == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) - InvariantResult [Line: 377]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 863]: Loop Invariant Derived loop invariant: (((~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32 - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: ((((((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || ((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32))) || ((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvslt32(waterLevel, 2bv32))) || ((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || (((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) - InvariantResult [Line: 253]: Loop Invariant Derived loop invariant: ((((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) || (((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32))) || ((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || ((((((splverifierCounter == 0bv32 && 0bv32 == tmp) && \result == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) - InvariantResult [Line: 933]: Loop Invariant Derived loop invariant: (((~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32 - InvariantResult [Line: 210]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 154]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: (((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == \result) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) || (((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) - InvariantResult [Line: 154]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 210]: Loop Invariant Derived loop invariant: (((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || ((((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && !(tmp == 0bv32)) && 0bv32 == pumpRunning) && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp___0 == 0bv32)) || (((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 242]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 154]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && \result == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || (((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && \result == 1bv32) && 1bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) - InvariantResult [Line: 210]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: ((((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || (((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || (((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 118 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.9s, OverallIterations: 12, TraceHistogramMax: 2, AutomataDifference: 6.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1144 SDtfs, 1360 SDslu, 2344 SDs, 0 SdLazy, 284 SolverSat, 62 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 798 GetRequests, 749 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=304occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 1120 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 43 LocationsWithAnnotation, 43 PreInvPairs, 114 NumberOfFragments, 907 HoareAnnotationTreeSize, 43 FomulaSimplifications, 399770 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 43 FomulaSimplificationsInter, 42171 FormulaSimplificationTreeSizeReductionInter, 3.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 398 NumberOfCodeBlocks, 398 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 772 ConstructedInterpolants, 0 QuantifiedInterpolants, 62293 SizeOfPredicates, 22 NumberOfNonLiveVariables, 2562 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 PerfectInterpolantSequences, 82/82 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...